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Link Building Statistics 2026: 117 Stats From 23 Original Studies, With Dates and Sample Sizes

Links still move rankings, weakly. Their payoff has moved to AI answers, where brand mentions beat backlinks. 117 figures, each from the team that ran the study.

Oleksii Andrusenko, Head of Marketing at GEOboom, CEO of GrowPadUpdated November 11, 2026
117 stats. 23 original studies.

The main link building statistics for 2026 say links still help, and their biggest payoff has moved to AI answers. Here are the 10 numbers that matter most. We opened and checked each study on November 10 and 11, 2026.

  • 85% of brand mentions in AI answers come from sites the brand doesn't own, and nearly 90% of those come from listicles, comparisons, and reviews (AirOps, October 2025, 21,311 mentions).
  • Brand mentions on the web correlate with AI Overview visibility at 0.664. Backlinks correlate at 0.218 (Ahrefs, 75,000 brands).
  • "Best X" lists make up 43.8% of the pages ChatGPT cites (Ahrefs, December 2025, 26,283 URLs).
  • Links still correlate with Google rankings, but weakly: 0.255 for referring domains across the top 1 million US keywords (Ahrefs, 2025).
  • Only 29% of SEOs call their link building successful, and 40% say their reports show its value (BuzzStream and Citation Labs, 2025, 300+ SEOs).
  • Outreach reply rates run from 0.85% to 18%, depending on who you email and what you count. The famous 8.5% comes from a 2019 Backlinko study.
  • More than half of the publishers who reply to outreach ask for money, and one in four wants a link swap instead (GEOboom, 370 publishers, 2026).
  • A backlink costs $150 at the median when you ask the publisher directly, across 161 sites (GEOboom, 2026).
  • About a third of links are gone within a year: after 12 months, around 63% are still live (Linkody, 865,000 links, 2026).
  • 56% of SEOs outsource at least part of their link building, and 44% keep all of it in-house (Editorial.Link, 518 SEOs, 2026).

Many of the studies come from companies that sell link building or outreach tools, so we mark them. GEOboom is our product too. Its numbers come from our own outreach campaigns. How we picked the sources, and what we left out, is in the methodology at the end.

Almost every SEO says links work, and fewer than a third say their own link building does. In uSERP's 2026 survey of 116 SEO leaders, 96.5% said backlinks have a moderate or high impact on rankings. In the BuzzStream and Citation Labs survey of 300+ SEOs, only 29% called their own link building successful.

What SEOs believe about links, against how many say their own link building works. uSERP, 116 SEO leaders: 96.5% say backlinks have a moderate or high impact on rankings, 87.1% would keep building links if Google dropped them as a signal, 62.1% call them a top-3 ranking factor. BuzzStream and Citation Labs, 300+ SEOs: 40% say their reports show what link building is worth, 29% call their own link building successful, 11% have a repeatable process for getting cited by AI
What SEOs believe about links, against how many say their own link building works. uSERP, 116 SEO leaders: 96.5% say backlinks have a moderate or high impact on rankings, 87.1% would keep building links if Google dropped them as a signal, 62.1% call them a top-3 ranking factor. BuzzStream and Citation Labs, 300+ SEOs: 40% say their reports show what link building is worth, 29% call their own link building successful, 11% have a repeatable process for getting cited by AI

The gap is mostly about proof. Only 40% of the BuzzStream and Citation Labs respondents said their reports show what link building is worth, and 29% said budgets are easy to get. Of those with leadership support, 60% get just 3 to 6 months to show results.

Belief stays high anyway. 87.1% of uSERP's panel would keep building links even if Google dropped them as a ranking signal, and 62.1% still call backlinks a top-3 ranking factor. Budgets are growing too. In Reporter Outreach's 2026 survey of 500 SEOs, 58% raised their link building budget this year and 14% cut it.

All three surveys come from companies that sell link building or outreach: uSERP and Citation Labs are link building agencies, BuzzStream sells outreach software, and Reporter Outreach sells digital PR links.

Yes, but the link is weak, and it's a little weaker than it was in 2019. Ahrefs took the 1 million US keywords with the most searches and compared the top 20 results with their link data. Referring domains correlated with rankings at 0.255, backlinks at 0.248, and Domain Rating at 0.131 (Ahrefs, Patrick Stox and Xibeijia Guan, January 2025, updated August 2026).

How ten page and link metrics correlate with position in Google's top 20 across the top 1 million US keywords: referring domains 0.255 (0.29 in Ahrefs' 2019 study), followed referring domains 0.250, backlinks 0.248, followed backlinks 0.242, Domain Rating 0.131, internal links to the page 0.117, internal links on the page 0.093, external links on the page 0.083, keyword in the URL 0.034, and URL length -0.107
How ten page and link metrics correlate with position in Google's top 20 across the top 1 million US keywords: referring domains 0.255 (0.29 in Ahrefs' 2019 study), followed referring domains 0.250, backlinks 0.248, followed backlinks 0.242, Domain Rating 0.131, internal links to the page 0.117, internal links on the page 0.093, external links on the page 0.083, keyword in the URL 0.034, and URL length -0.107

Ahrefs' 2019 study put referring domains at 0.29. For similar queries, the 2025 figure is 0.22 to 0.24. Links count for more in local search, where they correlated at 0.33. They also correlate more with branded and high-volume keywords, partly because popular brands simply collect more links.

Two figures you'll find in almost every roundup are older than they look:

Both still get quoted as if they were new. We keep them here with their dates, next to the newer Ahrefs numbers.

Mentions on other people's pages matter more than links. AirOps checked 21,311 brand mentions in GPT-5, Claude Sonnet 4.5, and Perplexity Sonar answers to 500+ buying questions. 85% came from sites the brand doesn't own, and only 13.2% from the brand's own domain. Nearly 90% of those third-party mentions came from listicles, comparisons, or reviews (AirOps, Oshen Davidson, October 17, 2025).

Each AI also picks its own sources. Nearly 68% of the brands AirOps found showed up in only one of the three AI platforms.

How nine brand factors correlate with brand visibility in Google AI Overviews across 75,000 brands: brand web mentions 0.664, branded anchor text 0.527, branded search volume 0.392, Domain Rating 0.326, referring domains 0.295, organic traffic 0.274, backlinks 0.218, branded ad traffic 0.216, and branded ad cost 0.215
How nine brand factors correlate with brand visibility in Google AI Overviews across 75,000 brands: brand web mentions 0.664, branded anchor text 0.527, branded search volume 0.392, Domain Rating 0.326, referring domains 0.295, organic traffic 0.274, backlinks 0.218, branded ad traffic 0.216, and branded ad cost 0.215

Ahrefs found the same pattern in Google's AI Overviews. Across 75,000 brands, mentions of the brand on the web correlated with AI Overview visibility at 0.664, branded anchor text at 0.527, and backlinks at 0.218. 26% of brands had no AI Overview mentions at all (Ahrefs, Louise Linehan and Xibeijia Guan, May 2025, updated April 2026).

Lists are the pages AI reads most. In ChatGPT's answers to 750 top-of-funnel prompts, "best X" lists made up 43.8% of all cited pages (Ahrefs, Glen Allsopp, December 2025, 26,283 URLs).

Links still help, mostly through authority. Semrush checked 1,000 domains across ChatGPT, Gemini, AI Overviews, and Perplexity. Authority Score, its link-based metric, correlated with AI mentions at 0.65. Nofollow links counted about as much as followed ones, at 0.509 and 0.504 by rank correlation (Semrush, Margarita Loktionova, October 2025).

Buyers are already asking AI. Half of B2B software buyers now start their search in an AI chatbot instead of Google (G2, Tim Sanders, October 2025, 1,000+ buyers). G2 sells reviews and marketing to software vendors.

SEOs see the shift, and few act on it yet. 81.9% of uSERP's panel believe backlinks affect whether AI cites a brand, and 46.6% have seen a backlink lead to an AI citation. In Reporter Outreach's survey, 74% believe backlinks affect AI visibility, but only 24% track it and 19% have changed how they build links. Only 11% of the BuzzStream and Citation Labs respondents have a repeatable process for getting cited by AI.

How many SEOs say backlinks affect AI search visibility: yes significantly 28%, yes somewhat 46%, unsure 21%, no 5%. Below it, 24% track their AI search visibility and 19% have changed how they build links. From 500 SEO professionals
How many SEOs say backlinks affect AI search visibility: yes significantly 28%, yes somewhat 46%, unsure 21%, no 5%. Below it, 24% track their AI search visibility and 19% have changed how they build links. From 500 SEO professionals

AirOps sells an AI content platform, and Ahrefs and Semrush sell SEO tools that track AI visibility.

Between 0.85% and 18% in the studies we checked. The range is wide because each study emails different people and counts replies differently.

Outreach reply rates by study. Per email sent: BuzzStream digital PR 0.85%, Mentiohunt link outreach 6.5%, Backlinko and Pitchbox 8.5% in 2019. Per person contacted: Hunter cold email 4.5%, four GEOboom campaigns at 10%, 12%, 14% and 18%, and Mentiohunt 12.8%
Outreach reply rates by study. Per email sent: BuzzStream digital PR 0.85%, Mentiohunt link outreach 6.5%, Backlinko and Pitchbox 8.5% in 2019. Per person contacted: Hunter cold email 4.5%, four GEOboom campaigns at 10%, 12%, 14% and 18%, and Mentiohunt 12.8%

Four things move the number:

  • Per email or per person. Follow-ups count as emails, so a per-email rate looks lower. In Mentiohunt's data from 6,983 link outreach emails sent from July 13 to October 23, 2026, 12.8% of prospects replied, but only 6.5% of emails got a reply. Mentiohunt sells outreach software and competes with GEOboom.
  • Who you email. Journalists reply less than site owners. BuzzStream measured a 0.85% reply rate across 31 million digital PR pitches (BuzzStream, Vince Nero, April 2025).
  • What you're selling. Hunter's 4.5% covers all cold email, mostly sales, from 31 million emails Hunter users sent in 2025 (Hunter, State of Email Outreach 2026). Hunter sells email finding and outreach tools.
  • When. The 8.5% you'll see in most roundups comes from 12 million emails analyzed by Backlinko and Pitchbox in 2019 (Backlinko, Brian Dean, April 2019).

In GEOboom campaigns, 10% to 18% of the publishers we contacted replied: 14% for an IT services company, 12% for a design studio, 10% for a software studio, and 18% for GrowPad.

Follow-ups help in every study. Backlinko saw 2x more responses when the same contact got more than one email, and 65.8% more from a single follow-up. Hunter saw 106% more replies from three messages than from one (6.8% against 3.3%). In Mentiohunt's data, the first follow-up added 2.4 points to a 9.6% first-email rate.

Most replies are about money. 58% of the prospects who replied to Mentiohunt outreach asked for payment. Of the 370 publishers whose replies GEOboom read for terms, 52% asked only for money, 24% only for a link swap, and 3% offered either (GEOboom, 2026).

A backlink costs $150 at the median when you ask the publisher, and $99 to $486 at a link building service, depending on the site's DR. That comes from 281 publisher quotes and the price pages of 22 services we checked in November 2026. The full breakdown by DR, placement type, and niche is in how much backlinks cost in 2026.

Other studies land in the same range:

  • LinkDR's catalog of 10,030 sites puts the median guest post on DR 30+ sites at $100 (LinkDR, Ilias Ism, October 2026). LinkDR sells links.
  • BuzzStream found an average of $461 per guest post across about 500,000 sites in link vendors' databases (BuzzStream, Vince Nero, June 2026).
  • In Editorial.Link's survey, SEOs said they'd accept $508.95 on average for one high-quality backlink. That's what SEOs say they'd pay. The real quotes above are lower (Editorial.Link, March 2026).

Budgets are big and growing. 64% of Reporter Outreach's 500 respondents spend $3,000 or more a month on link building, and 76% would pay $300 or more for a single link. 75% expect link prices to rise over the next two years.

The most 500 SEO professionals would pay for a single link: under $100 6%, $100 to $300 18%, $300 to $500 29%, $500 to $1,000 31%, and $1,000 or more 16%, so 76% would pay $300 or more. A dashed line marks the $150 median cheapest quote from 161 publisher sites in GEOboom outreach
The most 500 SEO professionals would pay for a single link: under $100 6%, $100 to $300 18%, $300 to $500 29%, $500 to $1,000 31%, and $1,000 or more 16%, so 76% would pay $300 or more. A dashed line marks the $150 median cheapest quote from 161 publisher sites in GEOboom outreach

About a third of links are gone within a year. Linkody tracked more than 865,000 links its users monitor: around 63% were still live after a year, and 31% after five years or more (Linkody, François Mommens, June 2026, updated August 2026). Linkody sells backlink monitoring.

Share of backlinks still live by how long they have been tracked: 89% after 3 months, 63% after 1 year, 46% after 2 to 5 years, and 31% after 5 years or more, across 865,000 monitored links
Share of backlinks still live by how long they have been tracked: 89% after 3 months, 63% after 1 year, 46% after 2 to 5 years, and 31% after 5 years or more, across 865,000 monitored links

The loss isn't even across sites. In 139 Linkody accounts that added at least 30 links in 2025, 14.3% of those links were removed. The median account lost only 1.8%.

Over a decade, most links go. Ahrefs found that 66.5% of the links pointing to 2,062,173 sites since 2013 had rotted. Most lost links either dropped out with their page from Ahrefs' index (47.7%) or were removed from the page (34.2%) (Ahrefs, Patrick Stox, 2022, updated 2024). Pew Research Center found that 38% of web pages that existed in 2013 were gone by October 2023.

Why links drop and how to keep them is a topic for its own article: lost backlinks statistics 2026. For tools that check links daily, see the best backlink monitoring tools.

Most SEOs get outside help with at least part of it. In Editorial.Link's 2026 survey of 518 SEOs, 56% outsource some or all of their link building, and 44% do everything in-house (Editorial.Link, Pawel Tatarek, Hanna Lebedeva, and Adelina Karpenkova, March 2026). Editorial.Link is a link building agency.

Companies lean in-house. Among the roughly 150 in-house respondents in the BuzzStream and Citation Labs survey, 61% run link building entirely in-house. Agencies sit on the other side: nearly half of Reporter Outreach's 500 respondents (47%) are agency owners or freelancers who build links for clients.

Share of SEOs who do all link building in-house against those who use outside help. All SEOs surveyed by Editorial.Link: 44% all in-house, 56% outsource some or all. SEOs working in-house at a company, surveyed by BuzzStream and Citation Labs: 61% entirely in-house, 39% not
Share of SEOs who do all link building in-house against those who use outside help. All SEOs surveyed by Editorial.Link: 44% all in-house, 56% outsource some or all. SEOs working in-house at a company, surveyed by BuzzStream and Citation Labs: 61% entirely in-house, 39% not

Links take a big share of the SEO budget either way. Agencies spend 32.1% of theirs on link building, and in-house teams 36.03% (Editorial.Link). Paying for placements is common: 35.3% of uSERP's panel paid for, or approved paying for, a sponsored backlink in the past year.

If you're weighing a service against doing it yourself, we compare both in the best link building services and the best link building tools.

Digital PR comes out on top in every survey we checked:

  • 48.6% of Editorial.Link's 518 SEOs call digital PR the most effective tactic in 2026.
  • 53.4% of uSERP's panel say digital PR gave them their strongest results in the past 12 months.
  • 34% of Reporter Outreach's 500 respondents name it their best tactic, ahead of HARO and journalist sourcing (21%) and guest posts (18%).

Most SEOs mix tactics. In Reporter Outreach's survey, 42% to 46% use each one, so the split shows up in what works best.

Share of 500 SEO professionals who use each link building tactic and who name it their best: digital PR 45.6% and 34%, HARO and journalist sourcing 41.6% and 21%, guest posts 42.4% and 18%, link insertions 42.0% and 14%, content-led outreach 42.2% and 9%, link exchanges 43.8% and 0%, and broken link building 44.0% with no best share reported
Share of 500 SEO professionals who use each link building tactic and who name it their best: digital PR 45.6% and 34%, HARO and journalist sourcing 41.6% and 21%, guest posts 42.4% and 18%, link insertions 42.0% and 14%, content-led outreach 42.2% and 9%, link exchanges 43.8% and 0%, and broken link building 44.0% with no best share reported

Digital PR is also hard to scale by volume. In BuzzStream's analysis of 31 million pitches, campaigns of 51 to 100 emails earned the most links, 12.08 on average. Campaigns of 1,001 to 5,000 emails earned 70% fewer.

For AI answers, the page type matters as much as the tactic. Listicles, comparisons, and reviews carry nearly 90% of third-party brand mentions in AI answers (AirOps, above). A spot on the right list can do more than a guest post on a page AI never reads.

How we use this data

GEOboom is a link building and mention outreach tool, and these numbers shape how it works. It starts from the pages AI answers already cite, because lists, comparisons, and reviews carry most brand mentions. It reads each page against your site, finds the editor, and sends follow-ups by default, since they lift replies in every study above. It checks every live placement daily and writes to the publisher itself if a mention drops. Your part is to approve or skip each offer. In our campaigns, 10% to 18% of the publishers we contacted replied. In one GrowPad campaign, a single email led to a list placement in 18 days, and that list put GrowPad in Google's AI Overview. Plans start at $150 a month, with 2 to 8 placements a month.

Link building statistics: FAQ

Is link building still worth it in 2026?

For most sites, yes. Links still correlate with Google rankings, at 0.255 for referring domains in Ahrefs' 2025 study, and mentions on other sites drive 85% of brand mentions in AI answers, per AirOps. Only 29% of SEOs call their own link building successful, so track what each link brings.

Do backlinks help you show up in AI answers?

They help, and mentions help more. In Ahrefs' study of 75,000 brands, web mentions correlated with AI Overview visibility at 0.664 and backlinks at 0.218. In Semrush's data, nofollow links counted about as much as followed ones.

What is a good reply rate for link building outreach?

For link outreach counted per person contacted, 10% to 18% is a solid range: Mentiohunt saw 12.8% in 2026, and GEOboom campaigns saw 10% to 18%. Counted per email, the same outreach shows about half that.

Is the 8.5% outreach reply rate still accurate?

It's from 2019. Backlinko and Pitchbox counted it per email across 12 million messages. Newer data puts link outreach at 6.5% per email and 12.8% per person, in Mentiohunt's 2026 dataset.

How much does one backlink cost?

$150 at the median when you ask the publisher directly, and $99 to $486 at a link building service depending on DR. The full breakdown is in our article on what backlinks cost in 2026.

How many backlinks do you lose each year?

About a third. Linkody found around 63% of links still live after a year, and 31% after five years or more. Single accounts vary a lot: the median account lost 1.8% of the links it added in 2025.

We took numbers only from the company or team that ran the survey, crawl, or campaign, and we opened each source on November 10 or 11, 2026. Roundups that repeat other people's numbers weren't used. Each study below is listed with its author, date, and sample, and every number in the article links to its source.

Publication dates of the 23 studies used in this article, from Backlinko in 2016 to GEOboom in November 2026. 18 are from 2025 or 2026; the older ones are three Backlinko studies from 2016 and 2019, Ahrefs' link rot study from 2022 and Pew Research from 2024
Publication dates of the 23 studies used in this article, from Backlinko in 2016 to GEOboom in November 2026. 18 are from 2025 or 2026; the older ones are three Backlinko studies from 2016 and 2019, Ahrefs' link rot study from 2022 and Pew Research from 2024
StudyWho and whenSampleInterested party?
The influence of offsite signals in AI searchAirOps, Oshen Davidson, October 202521,311 brand mentions, 500+ queries, 3 AI modelsYes, sells an AI content platform
AI Overview brand visibility factorsAhrefs, Louise Linehan and Xibeijia Guan, May 2025, updated April 202675,000 brandsYes, sells SEO tools
"Best" lists and ChatGPT visibilityAhrefs, Glen Allsopp, December 202526,283 source URLs, 750 promptsYes, sells SEO tools
Links and rankings across 1,000,000 SERPsAhrefs, Patrick Stox and Xibeijia Guan, January 2025, updated August 2026Top 1 million US keywordsYes, sells SEO tools
Link rot studyAhrefs, Patrick Stox, 2022, updated 20242,062,173 sitesYes, sells SEO tools
Backlinks and AI searchSemrush, Margarita Loktionova, October 20251,000 domainsYes, sells SEO tools
AI chat and B2B software buyingG2, Tim Sanders, October 20251,000+ B2B buyersYes, sells reviews and marketing to vendors
State of Backlinks 2027uSERP, Jeremy Moser, September 2026116 SEO professionalsYes, link building agency
Link Building Trends Report 2025BuzzStream and Citation Labs, Vince Nero, April 2025300+ SEOsYes, outreach software and a link building agency
State of Link Building 2026Reporter Outreach, Brandon Schroth, March 2026, updated October 2026500 SEO professionalsYes, sells digital PR links
Link building statistics 2026Editorial.Link, March 2026518 SEO professionalsYes, link building agency
Spray and pray in PRBuzzStream, Vince Nero, April 202531 million emails, 86,000 campaignsYes, sells outreach software
The cost of guest postsBuzzStream, Vince Nero, June 2026About 500,000 sites in vendor databasesYes, sells outreach software
State of Email Outreach 2026Hunter, 202631 million emails sent in 2025Yes, sells email tools
Link outreach statistics 2026Mentiohunt, July to October 20266,983 emails to 3,543 prospectsYes, sells outreach software and competes with GEOboom
12 million outreach emailsBacklinko and Pitchbox, Brian Dean, April 201912 million emailsPitchbox sells outreach software
11.8 million search resultsBacklinko, Brian Dean, first published 201611.8 million resultsNo
912 million blog postsBacklinko, Brian Dean, February 2019912 million postsNo
Link building statistics 2026LinkDR, Ilias Ism, October 202610,030 sitesYes, sells links
865,000 monitored backlinksLinkody, François Mommens, June 2026, updated August 2026865,000+ linksYes, sells backlink monitoring
When online content disappearsPew Research Center, May 2024About 1 million web pagesNo
Publisher quotes and termsGEOboom, September 28 to November 5, 2026370 publishers, 281 quotes from 161 sitesYes, our product
GEOboom case studies: IT services, design studio, software studio, GrowPadGEOboom, 20261,710 publishers contacted in 4 campaignsYes, our product

How we counted. Each survey number is the share of that survey's respondents, as the study reports it. For GEOboom, the reply rate is publishers who replied divided by publishers contacted, as each case study reports it. Older studies (Backlinko, 2016 and 2019) appear only with their dates, because most roundups still quote them as new.

What we left out, and why:

  • Link building market size ($25.98 billion in 2025, $57.07 billion by 2030, or $30.32 billion in 2026, depending on the roundup). These come from paid market-research reports with no method we could check, and the two sets of numbers don't match.
  • 5W's State of AI Search 2026. Its own charts say the numbers are "modeled directional estimates, not logged query runs."
  • "34% of backlinks are lost within 90 days." We couldn't find the original study.

Who wrote it. Oleksii Andrusenko, Head of Marketing at GEOboom and CEO of GrowPad. Reviewed by Artur, CTO of GEOboom.

Disclosure. GEOboom is our product. It's outreach software and doesn't sell links. The reply rates and publisher terms come from its outreach for our clients. Mentiohunt competes with GEOboom, and we include its data because it's the newest link outreach dataset we found. GrowPad, a GEOboom client, is run by this article's author.

We'll update this page every quarter. The next update is due in February 2027. The charts are free to use with a link to this page, and every figure above is in one file: link-building-statistics-2026.csv, under a CC BY 4.0 licence, with the statistic, its value, the study, its author, its date and its sample on each row.

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