Lecture 15: Link Building and Authority

Short answer: Link building is the process of acquiring hyperlinks from other websites to your own website. Backlinks signal authority and credibility to search engines: a page linked to by many authoritative, relevant sites is treated as a more trustworthy and authoritative source than a page with few links. Effective link building in 2026 focuses on earning high-quality editorial links through content, relationship building, and digital PR, while avoiding manipulative tactics that violate Google's spam policies. This lecture covers every dimension of modern link building in full depth.

What You'll Learn in This Lecture

• Why Backlinks Still Matter and How Google Evaluates Them
• What Makes a Backlink High Quality vs. Low Quality
• How to Measure Your Domain Authority and Backlink Profile
• Link Building Tactics That Work Safely in 2026
• Guest Posting: The Right Way and the Wrong Way
• Broken Link Building: Finding and Replacing Dead Links
• The Skyscraper Technique and Why It Works
• Resource Page Link Building
• HARO and Digital PR for Earning Editorial Links
• How to Conduct a Competitor Backlink Analysis
• How to Disavow Toxic Links That Harm Rankings
• How to Track and Report Link Building Progress

Why Backlinks Still Matter and How Google Evaluates Them

Backlinks are hyperlinks from external websites that point to pages on your website. They have been a primary ranking signal in Google's algorithm since the search engine's founding, when Larry Page and Sergey Brin's original PageRank algorithm modeled web authority as a citation network: a page is more authoritative if many other pages link to it, especially if those linking pages are themselves authoritative.

Despite many predictions over the years that Google would deprecate links as a ranking signal (in favor of AI-based content quality assessment or user behavior signals), backlinks remain among the top 3 ranking factors in 2026. This is because the link graph is extremely difficult for site owners to fake at scale without triggering Google's spam detection systems. User behavior signals and content quality signals are more easily gamed with AI-generated content and engagement manipulation. Links from real editorial decisions by real website owners are harder to fake at the scale needed to compete for meaningful keywords.

How Google evaluates backlinks in 2026: not all links are equal. Google evaluates each backlink on multiple dimensions: the authority of the linking domain (a link from a high-domain-authority established publication is worth more than a link from a brand new blog), the topical relevance of the linking page (a link from a page about cybersecurity to a cybersecurity service provider carries more relevance signal than a link from an unrelated page), the position of the link on the linking page (a link in the main body content of an article carries more weight than a link in a sidebar widget or footer), the anchor text of the link (descriptive, keyword-relevant anchor text carries more topical signal than "click here"), and whether the link is followed or nofollowed (nofollowed links carry significantly less PageRank, though Google has stated it uses nofollow as a hint rather than an absolute directive since 2019).

Example: A B2B cybersecurity company in Washington D.C. has 2 competing link acquisition results in the same month: a paid guest post placement on a DA-30 general business blog with a link in the author bio (a low-quality link: low authority, not topically relevant, link in bio not body), vs. an editorial mention in a TechCrunch article covering a cybersecurity trend where the journalist cited the company's published threat research (high authority link: DA-94, highly topically relevant, body content link, natural editorial context). In Google's evaluation: the TechCrunch link carries approximately 50 to 100 times more authority transfer than the guest post bio link. The single TechCrunch mention moves the company's target keywords measurably; the guest post shows no detectable ranking impact. Same time investment in outreach, dramatically different results based on link quality.

What Makes a Backlink High Quality vs. Low Quality

Link quality is determined by 5 characteristics. Understanding these characteristics is essential for evaluating which link opportunities are worth pursuing and which are better ignored.

Domain authority of the linking site: Measured by tools like Ahrefs (Domain Rating, DR), Moz (Domain Authority, DA), or Semrush (Authority Score). Sites with DR/DA 50 and above are established, authoritative domains whose links carry significant weight. Sites with DR/DA below 20 are new or low-authority sites whose individual links carry minimal weight. A single high-authority link often outperforms dozens of low-authority links.

Topical relevance: A link from a page and domain covering the same topic or adjacent topic as your site carries a stronger relevance signal than a link from an entirely unrelated niche. A digital marketing agency that earns a link from a marketing automation software comparison article earns a more valuable link than the same agency earning a link from a pet care blog that happens to have a general "resources" section.

Link placement in content: Links placed in the main body content of an article are editorially chosen and carry the most authority. Links in sidebars, footers, blog rolls, directory listings, and author bios carry progressively less authority because they are less likely to represent a genuine editorial choice to recommend the linked page specifically.

Anchor text: Descriptive, contextually appropriate anchor text (containing the linked page's topic or keywords) carries more relevance signal than generic anchor text. However, all external links should have diverse, natural-looking anchor text profiles: an over-concentration of exact-match keyword anchor text in external links is a spam signal that can trigger algorithmic or manual penalties.

Link uniqueness: A link from a domain that has not linked to you before (a new linking domain) carries more incremental authority than an additional link from a domain that already links to you 10 times. Growing the number of unique linking domains (referring domains) is more valuable than getting more links from the same domains you already have links from.

Example: An HR software company in Chicago, Illinois evaluates 4 link opportunities: (A) A body content link from SHRM.org (Society for Human Resource Management, DA 80, directly relevant to HR software) in an article about HR technology trends. (B) A footer link from an HR consulting blog (DA 28, somewhat relevant) in exchange for a reciprocal link. (C) A sidebar link from a general business directory (DA 45, not topically relevant). (D) A body content link from Workday.com's integration partners page (DA 88, highly relevant). By quality ranking: D (highest authority and most relevant), A (high authority and highly relevant), C (moderate authority but irrelevant placement and context), B (lowest quality: low authority, reciprocal arrangement, footer placement). The company prioritizes pursuing A and D-type links through content creation and partner relationships, while declining B and C-type opportunities that would add minimal ranking value.

How to Measure Your Domain Authority and Backlink Profile

Domain authority tools provide estimates of how authoritative a website is based on the quantity and quality of its backlink profile. The primary tools are Ahrefs (Domain Rating, DR), Moz (Domain Authority, DA), and Semrush (Authority Score). Each uses a different methodology and produces different scores, so they are not directly comparable across tools. Domain authority scores are useful for comparing your site against competitors in the same tool over time, not as absolute measures of ranking ability.

Analyzing your own backlink profile: in Ahrefs, go to Site Explorer and enter your domain. The "Backlinks" report shows all links to your domain with the URL of the linking page, the anchor text, the DR of the linking domain, and whether the link is followed or nofollowed. The "Referring Domains" report shows all unique domains linking to you -- this is the metric that matters most for authority, as it represents independent editorial decisions. The "New and Lost Backlinks" report shows which links you have gained or lost in the past 30 days -- critical for catching sudden link losses that might explain ranking drops.

Key metrics to track in your backlink profile: total referring domains (more important than total backlinks), the distribution of DR scores across referring domains (a profile dominated by very low-DR sites suggests low overall authority despite a high link count), and the ratio of followed to nofollowed links (a healthy natural link profile has a mix of followed and nofollowed links; a profile that is 95%+ followed may look artificially built).

Example: A legal services marketplace in New York, New York analyzes its backlink profile in Ahrefs. Current metrics: 1,240 referring domains, DR 52. Drilling into the referring domains: 580 (47%) have a DR under 10 (very low quality), 290 (23%) are from general directories and citation sites, and 370 (30%) are from relevant legal and business publications. Comparing to the #1 competitor for their target keyword: the competitor has 2,100 referring domains, DR 68, with 60% of referring domains having DR over 30. The analysis shows: the company needs to grow high-quality referring domains specifically, not just total link count. Their link-building strategy is reoriented toward earning links from DR 40+ legal and business publications, and away from submitting to additional low-DR directories. 12 months later, their referring domain count has grown to 1,640 but more importantly their DR 40+ referring domains have grown from 370 to 720, DR rises from 52 to 63, and their core keyword rankings improve substantially.

Link Building Tactics That Work Safely in 2026

Not all link building tactics are equally safe or effective. Google's link spam policies have become increasingly sophisticated, and tactics that worked years ago now carry penalty risk. The following tactics are safe, effective, and aligned with Google's quality guidelines as of 2026.

Content-led link earning: Creating research, tools, guides, and resources that other sites link to because they are genuinely valuable (covered in full in Lecture 8). This is the most sustainable and algorithmically safe approach because the links are entirely editorial.

Digital PR and journalist outreach: Pitching data, expert quotes, and research to journalists and bloggers who write about your industry. When journalists cite your data or quote your expertise, they link to your domain. These are some of the highest-quality links available (links from established media sites carry significant authority) and they are editorially genuine.

Guest posting (correctly executed): Writing expert content for reputable publications in your industry. When done correctly (high-quality content on relevant sites, links in body content relevant to the article, not over-optimized anchor text, not at excessive scale), guest posting is an acceptable link building tactic. The problematic version (low-quality articles on link farms, over-optimized anchor text, at mass scale) is a violation of Google's spam policies.

Broken link building: Finding broken links on other websites and suggesting your content as a replacement. This works because it provides genuine value to the site owner (fixing a broken link) while earning a link to your site. Details covered in the section below.

Partner, supplier, and association links: Businesses typically have legitimate relationships with partners, suppliers, vendors, and industry associations. Ensuring your website is linked from these entities' websites (and linking to them in return) is a natural and legitimate link building source that is often overlooked.

Unlinked brand mentions: Using brand monitoring tools (Ahrefs Alerts, Google Alerts, or Mention.com) to find articles that mention your brand name without linking to your website, then contacting the author to ask them to add a link. These are high-conversion outreach contacts because the author has already demonstrated they know and value your brand.

Example: A renewable energy consulting firm in Denver, Colorado uses a diversified 2026 link building strategy combining 5 tactics. Tactic 1: they publish an annual State of Solar Energy report (original research) that earns 30 to 50 editorial links per year. Tactic 2: their principal consultant regularly responds to journalist queries (via HARO) and earns 8 to 12 media links per month as an expert source. Tactic 3: they write 2 guest articles per month on established energy industry publications. Tactic 4: they monitor for unlinked brand mentions using Ahrefs Alerts and recover 3 to 5 links per month by contacting authors. Tactic 5: they maintain listing links from 15 industry associations and 8 certification bodies in the renewable energy sector. Combined, this approach earns 25 to 40 new linking domains per month, steadily increasing DR and ranking positions for competitive solar consulting keywords without any risk of penalty from link scheme violations.

Guest Posting: The Right Way and the Wrong Way

Guest posting is writing content for another website in exchange for author attribution and typically a backlink. Google's stance: guest posting for the purpose of genuine expertise-sharing and audience building is legitimate. Guest posting purely for link building (with no regard for quality or relevance) is a link scheme violation. The line between the two is drawn by quality and scale.

The right way to guest post for SEO: target publications that your target audience actually reads and that are authoritative in your field. Pitch genuinely useful, original articles that add value to the publication's readers and are not available elsewhere. Write high-quality content that matches the publication's editorial standards. Include a link to your site only where genuinely relevant in the body of the article (not as the sole or primary purpose). Keep guest posting to a sustainable pace (2 to 4 per month) rather than at mass scale (30+ per month).

The wrong way to guest post: submit identical or slightly spun article versions to 20 different blogs. Target sites purely because of their DR score with no regard for topical relevance or audience overlap. Pay for guest post placement on "write for us" link farms. Use exact-match keyword anchor text in every author bio link. Submit very short (400 to 600 word) low-effort articles just to get the link. These practices collectively form what Google calls a "link scheme" and are subject to manual review and potential penalty.

Example: A personal finance author in Austin, Texas guest posts 3 times per month on established personal finance blogs (The Balance, NerdWallet's contributor program, CNBC's Your Money section). Each article is 1,800 to 2,500 words, entirely original, provides specific data or expert guidance not available in generic personal finance content, and includes 1 contextual body link to a relevant page on their website (a link in a paragraph about retirement accounts, pointing to their Roth IRA guide, not to their homepage). This guest posting program earns 3 monthly links from high-authority, topically relevant domains. Compare to a competing personal finance blogger who pays $50 per guest post placement to a guest post broker, publishing 15 short articles per month on mixed-relevance blogs with over-optimized "personal finance tips" anchor text. The second approach earns more links per month in quantity but risks a manual penalty for guest post link schemes. The first approach earns fewer but higher-quality links that produce sustained ranking improvements.

Broken Link Building: Finding and Replacing Dead Links

Broken link building is the process of: finding pages on other websites that contain broken links (links pointing to URLs that return a 404 error), creating or identifying content on your site that replaces the dead resource, and contacting the website owner to suggest your content as a replacement. It is effective because it provides a genuine service (fixing a broken link improves the quality of the other site) while earning a link in return.

The workflow for broken link building: use Ahrefs to find "broken pages" in your niche. Enter a competitor URL or a resource page URL in Ahrefs Site Explorer, go to Broken Backlinks, and see all pages that link to a 404 URL on that site. Alternatively, use the Ahrefs Content Explorer to find dead pages in your niche that used to have links. For each broken page found: check whether your site has an existing resource that would appropriately replace the dead page's content. If not, consider whether creating one is worthwhile (if there are many linking sites and the topic fits your content strategy). Email the webmasters of sites linking to the dead page: explain that the page they are linking to is returning a 404 error, and suggest your resource as a replacement. The email should be specific (mention the exact broken URL and exact page it was found on), genuinely helpful in tone, and brief.

The conversion rate for broken link building outreach is typically 5 to 20%: for every 100 webmasters contacted, 5 to 20 will replace the broken link with your suggestion. Because each outreach is personalized and provides genuine value, the conversion rate is higher than cold outreach for links with no compelling reason to link.

Example: An HR consulting firm in Minneapolis, Minnesota runs a broken link building campaign. Using Ahrefs, they find 340 links from HR and management blogs pointing to a defunct HR resource website (HRResourceHub.com, which shut down in 2023 and now returns 404 on all pages). Many of these broken links pointed to an HR onboarding checklist, an employee handbook template, and a performance review guide. The firm has all 3 of these resources on their own site as free downloads. They create a spreadsheet of all 340 linking sites, craft a personalized outreach email template explaining the broken link and suggesting their equivalent resource, and contact all 340 webmasters over 3 weeks. Response rate: 18%. Link replacement rate: 12% of total contacted (41 new links from 340 outreach emails). Average DR of new links: 34. These 41 new links represent a significant boost to the firm's backlink profile for 3 weeks of part-time outreach work, all from sites already inclined to link to HR resources.

The Skyscraper Technique and Why It Works

The Skyscraper Technique, coined by Brian Dean of Backlinko, is a 3-step process: find content in your niche that has earned many backlinks, create a significantly better version of that content, and reach out to the sites linking to the original piece to suggest they link to your improved version instead.

The logic of why it works: sites that have already linked to content on a topic have demonstrated that they find this topic link-worthy. They are your pre-qualified audience of potential linkers. If you can offer them a better version of the resource they already found good enough to link to, some percentage will update their link. The "better" element is critical: your version must be objectively and clearly superior -- more comprehensive, more current, better designed, more practically useful, or targeting a gap in the original.

Finding skyscraper targets: search for content in your niche using broad topic keywords, then check the backlink count for the top results in Ahrefs. Pages with 100+ backlinks from diverse referring domains are good skyscraper candidates. Alternatively, use Ahrefs Content Explorer filtered to your niche and sorted by referring domains to find the most-linked existing content. Evaluate each candidate: could you create something meaningfully better? If the existing piece is already excellent and comprehensive, the skyscraper will be difficult. If the existing piece is outdated, incomplete, or poorly formatted, there is a clear opportunity.

Example: A project management software company in San Francisco, California identifies a popular "Ultimate List of Project Management Statistics" article from a project management blog, published in 2021 with 420 referring domains. The article has 47 statistics, all from 2019 to 2021 sources. The company creates "230 Project Management Statistics for 2026" -- a dramatically expanded version covering 5x more statistics, all from 2023 to 2026 sources, organized into 12 categories with a filterable table of contents, and including an interactive chart showing trends over time. After publishing, they contact the webmasters of the 420 domains linking to the original article. Outreach message: explaining that the 2021 article has outdated statistics (specific example given), and introducing their 2026 version as a current, comprehensive alternative. Conversion rate: 14% of contacted webmasters update their link. New links earned: 59 from Skyscraper outreach plus 38 organic links from other sites that find the new article independently. Total: 97 new referring domains from a single content asset.

How to Conduct a Competitor Backlink Analysis

Competitor backlink analysis is the process of examining which websites link to your competitors but not to you, identifying the specific pages those linking sites linked to, and determining whether you could earn a similar link by creating similar or better content or by approaching the same linkers with a relevant pitch. It is one of the most efficient link building research methods because it reveals proven opportunities rather than hypothetical ones.

The competitor backlink analysis process in Ahrefs: enter a competitor's domain in Site Explorer, go to the "Referring Domains" report, and export the full list of domains that link to them. Cross-reference against your own referring domains to identify "gap" domains: sites that link to the competitor but not to you. Filter by minimum DR (typically 30+) to focus on quality opportunities. For each gap domain: visit the linking page and read the context of the link. Understand why the site linked to the competitor: was it a guest post, an expert quote, a data citation, a resource page listing, or a natural editorial mention? This tells you the type of content or outreach approach needed to earn a similar link.

For large competitor backlink profiles (thousands of referring domains), use Ahrefs' Link Intersect tool to compare up to 5 competitors simultaneously, showing domains that link to multiple competitors but not to you -- these are the highest-priority opportunities because multiple competitors have independently earned those sites' endorsement.

Example: A cloud storage company in Austin, Texas uses Ahrefs Link Intersect to analyze the backlink profiles of 4 competitors (Dropbox, Box, Google Drive, and OneDrive). The analysis reveals: 240 domains that link to 3 or more competitors but do not link to the cloud storage company. These include technology review sites (TechRadar, PCMag, Tom's Guide), IT management publications (CIO.com, TechRepublic), and small business resource sites (Fundera, Fit Small Business) that publish "best cloud storage" comparison articles. The company has no presence in any of these comparison articles. After systematically reaching out to each publication to pitch their product for inclusion in existing comparison articles or to provide an expert quote for upcoming technology reviews, they earn 28 editorial links from high-authority technology publications over 3 months. Their domain rating rises from DR 42 to DR 54, and their rankings for "cloud storage for business" and related queries improve from positions 12-18 to positions 4-8.

How to Disavow Toxic Links That Harm Rankings

Toxic links are low-quality or manipulative backlinks that could cause Google to apply a manual action or algorithmic downgrade to a site. Common toxic link patterns: links from private blog networks (PBNs), purchased link farms, automatically generated links from spam sites, and links from sites that Google has already identified as violating link spam policies. A site that has accumulated toxic links (sometimes through a previous owner's black-hat SEO, sometimes from negative SEO attacks by competitors, sometimes from long-ago link building campaigns that are now policy violations) may need to disavow those links.

Before disavowing any links, first attempt natural link removal: contact the webmaster of the linking site and request removal. If the site is legitimate but linking inappropriately, webmaster removal is always preferable to disavow. Use Google's Disavow Tool (available in Search Console) only for links that cannot be removed and that you believe are harming your ranking or are likely to cause a manual action. Disavowing a link tells Google to ignore that link when assessing your site's authority and spam signals.

The disavow process: create a plain text file listing the domains or URLs to disavow (domain: prefix for entire domains, full URL for individual links). Submit the file through Search Console's Disavow Tool. This is a permanent signal that Google uses in future crawl and link assessment cycles. Disavowing good links by mistake reduces your site's authority, so only disavow with strong confidence that a link is genuinely toxic. When in doubt, do not disavow.

Example: An insurance comparison website in Dallas, Texas receives a Google Search Console notification of a manual action for "Unnatural links to your site." Investigation reveals: a previous SEO agency hired 3 years ago built 800 links from a private blog network that Google has now identified and devalued. The site owner first contacts 80 linking domains for removal (20% respond and remove the links). For the remaining 640 irretrievable links, they create a disavow file listing all 640 domains and submit it through Search Console. After submitting the reconsideration request with documentation of the removal attempts and the disavow file, Google reviews and revokes the manual action within 6 weeks. Organic traffic, which had dropped 45% when the manual action was applied, recovers to within 82% of its pre-action level within 3 months of the manual action being lifted.

How to Track and Report Link Building Progress

Link building is a long-term investment with results that compound over months and years. Tracking progress requires metrics that capture both the immediate activity (links acquired) and the downstream outcome (domain authority increase and ranking improvement). Reporting to stakeholders without connecting link activity to business outcomes misrepresents the value of the work.

The core link building metrics to track monthly: new referring domains acquired (from Ahrefs or Semrush alerts), domain rating or domain authority trend (monthly snapshot to track authority growth trajectory), target keyword ranking changes for the pages most likely influenced by new links (tracked in a rank tracking tool), organic traffic to the specific pages receiving new link equity (from GA4), and link building activity metrics (outreach emails sent, response rate, link acceptance rate -- operational metrics that explain why results are or are not meeting targets).

Connect link activity to outcomes in monthly reports: showing that 25 new referring domains were acquired this month is activity reporting. Showing that 25 new referring domains were acquired, domain rating increased from 52 to 54, and 3 target keywords rose from positions 12-15 to positions 6-9 generating 840 additional monthly organic visitors worth an estimated $2,500 in comparable paid traffic value is outcome reporting that demonstrates business impact.

Example: A B2B marketing platform in Boston, Massachusetts builds a monthly link building report that tracks: new referring domains (broken down by DR range: under 30, 30 to 60, over 60), referring domain count trend (month over month), DR trend, ranking position changes for the 20 target keywords most likely to respond to authority increases, organic traffic from pages that received new links, and estimated organic traffic value at CPC rates for equivalent paid traffic. In month 6 of a focused link building campaign, the report shows: 18 new referring domains (12 DR 30-60, 6 DR 60+), DR increased from 44 to 51 over 6 months, 8 of the 20 tracked keywords rose to page 1 (from pages 2-3), organic traffic from target pages increased 68%, and the estimated paid traffic value of the additional organic traffic is $14,200 per month. This outcome-connected reporting makes the link building program's ROI clear to executive stakeholders and secures continued investment in the program.

Common Mistakes to Avoid

• Buying links (paying for link placements that are not disclosed as sponsored), which violates Google's link spam policies and risks manual action.
• Participating in link exchange schemes ("I'll link to you if you link to me"), which Google identifies and devalues as artificial link arrangements.
• Pursuing quantity over quality -- chasing low-DR links in high volume while ignoring the difficulty of earning high-DR editorial links.
• Using exact-match keyword anchor text for all external links pointing to your site, which is a clear spam signal to Google's link spam detection system.
• Guest posting at mass scale on low-quality, irrelevant sites purely for links, which Google now identifies and may penalize as a link scheme.
• Disavowing links without first confirming they are genuinely toxic, which removes real authority from the backlink profile unnecessarily.
• Reporting link building activity (links acquired) to stakeholders without connecting it to ranking and traffic outcomes, making it hard to justify the ongoing investment.

Action Checklist

• Run a backlink profile analysis in Ahrefs or Semrush: record your current referring domain count, DR/DA, and distribution of link quality.
• Conduct a competitor backlink analysis for your top 3 organic competitors. Identify at least 20 gap domains to target.
• Set up Ahrefs Alerts for your brand name to catch unlinked mentions that can be converted to links with outreach.
• Identify 5 to 10 broken link opportunities in your niche using Ahrefs' broken backlinks feature.
• Evaluate your existing content for Skyscraper potential: find the top 3 most-linked articles in your niche that your site could create a significantly better version of.
• Set up a monthly link building tracking report connecting new referring domains to ranking changes and organic traffic impact.

Practice Task

Complete a competitive link gap analysis for your site against one primary organic competitor. Record your findings below and identify your top 5 link opportunities to pursue first.

Metric	Your Site	Competitor Site	Gap
Referring domains (total)	Enter count	Enter count	+/- N domains
Referring domains DR 40+	Enter count	Enter count	+/- N domains
Domain Rating / Authority	Enter DR	Enter DR	+/- N points
Domains linking to competitor, not to you	N/A	N/A	Enter gap domain count
Top 5 gap domains to target	N/A	N/A	List top 5 with link type (content, expert quote, resource page)

Related Lessons Across SEO, AEO, GEO, SEM, and PPC

Use these connected lessons to move through organic search, answer engines, generative AI visibility, paid search, and PPC without losing the bigger strategy.

• Lecture 1: SEO Fundamentals for Beginners (SEO) - return to the course foundation when you need the big picture.
• Lecture - 7: Prompt Research: Finding What People Ask AI Tools About Your Topic (GEO) - turn search queries into AI prompt research.
• Lecture 5: Keyword Research for SEM: Finding High-Intent Search Terms (SEM) - compare organic keyword research with paid search demand.
• Lecture 5: Keyword Research for PPC: Tools, Techniques, and Search Term Reports (PPC) - translate keyword intent into PPC campaign structure.
• Lecture - 1: What Is AEO? How Answer Engines Are Different From Search Engines (AEO) - see how answer engines build on SEO foundations.

Course Links

• Back to Lecture 14: Structured Data and Rich Results
• Continue to Lecture 16: Outreach and Digital PR
• Run a Free SEO Audit on Your Site

Trusted References

For backlink analysis methodology, see Ahrefs' Complete Link Building Guide. For Google's link spam policies, see Google's Link Spam Policy. For the Skyscraper Technique, see Backlinko's Skyscraper Technique Guide.

FAQs

How Many Backlinks Do You Need to Rank on Page 1?

There is no specific number. The backlinks needed to rank on page 1 depend entirely on how many backlinks (and from what quality of domains) the current page-1 competitors have. The right question is: "How does my backlink profile compare to the pages currently ranking in positions 1 to 10 for my target keyword?" Use Ahrefs to check the referring domains for each top-10 result. If the top-10 pages average 80 referring domains and you have 5, you have a significant authority gap to close. If the top-10 pages average 15 referring domains and you have 12, you are in a much more competitive position with your current profile.

Is It Better to Have 1 High-Authority Link or 50 Low-Authority Links?

In most cases, 1 high-authority link from a DR 70+ publication provides more ranking impact than 50 links from DR 10 to 20 sites. The high-authority link passes significant PageRank and carries a strong trust signal. The 50 low-authority links collectively pass minimal PageRank and add minimal trust signals while adding risk of appearing artificially built. Focus on quality: target the most authoritative, topically relevant links you can realistically earn, rather than optimizing for link count by acquiring low-quality links at scale.

Does Nofollow Links Still Help SEO?

Nofollowed links (links with rel="nofollow", rel="sponsored", or rel="ugc" attributes) provide less PageRank transfer than followed links. However, since Google's 2019 announcement that nofollow would be treated as a "hint" rather than a directive, some PageRank may flow through nofollow links in Google's system. Beyond PageRank: nofollow links from high-authority publications provide brand visibility, drive referral traffic, and contribute to a natural-looking mixed followed/nofollowed backlink profile. A backlink profile that is 100% followed links looks unnaturally built to Google's spam detection systems. A mix of followed and nofollowed links is characteristic of a naturally acquired backlink profile and is healthier than an all-followed profile.