AhrefsBot: What it is and When You Should Block it in 2026
Key takeaway
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AhrefsBot shows up in almost every server log I've ever reviewed for a B2B client. It's persistent, it's polite, and it's one of the first user agents people ask about when they start looking at which bots are visiting their site.
The answer to "should I block it" is almost always "do you use Ahrefs?" But that hides a more interesting question about who benefits from the data your site gives away for free.
What is AhrefsBot?
AhrefsBot is the web crawler operated by Ahrefs, the SEO software company. It continuously crawls the web to discover pages and record the links between them, building the backlink index that powers Ahrefs Site Explorer, Domain Rating, and related reports. Ahrefs describes it as one of the most active crawlers on the internet after Googlebot. |
Ahrefs sells subscriptions to marketers who want to see who links to whom, what keywords a domain ranks for, and how competitors' content performs. To sell that, they need a fresh map of the web, and AhrefsBot draws the map.
The user agent identifies itself clearly in logs as AhrefsBot, usually with a version number and a link to Ahrefs' crawler documentation page. The company publishes its IP ranges so you can verify a request claiming to be AhrefsBot actually came from Ahrefs infrastructure. That verification step matters more than it used to, because fake user agents impersonating well-known crawlers are common.
Does AhrefsBot respect robots.txt?
Yes. AhrefsBot honors robots.txt Disallow directives and the non-standard Crawl-delay directive. Ahrefs documents that changes to robots.txt are picked up on the crawler's next visit, which can take up to a day or so on lower-traffic sites. It's one of the better-behaved commercial crawlers. |
This puts AhrefsBot in a different category from Bytespider, which is widely reported to ignore robots.txt entirely. If you write a Disallow rule for AhrefsBot, it will stop. You don't need a Cloudflare WAF rule for it.
You can also throttle rather than block. A Crawl-delay: 10 line under the AhrefsBot user agent tells it to wait ten seconds between requests. For a site on shared hosting or a platform with metered bandwidth, that's often the right middle ground. On Wix, bandwidth isn't your problem, so the decision is purely about the data.
Should you block AhrefsBot?
Block AhrefsBot only if nobody on your team, at your agency, or among your partners uses Ahrefs. If anyone does, blocking it makes your own Site Explorer and backlink reports incomplete for your own domain. Blocking it does not stop competitors from seeing your backlinks, because those links are discovered by crawling the linking sites, not yours. |
Here's the part most people miss. Blocking AhrefsBot from your domain doesn't hide your backlink profile. Ahrefs finds links to you by crawling other people's sites. What blocking does is stop Ahrefs from seeing your outbound links, your page content, and your internal structure. So competitors still see who links to you. You just see less about yourself.
For a B2B marketing team that runs SEO gap analysis or competitive content analysis in Ahrefs, blocking the crawler is self-sabotage. Your own domain becomes the least reliable row in your own tool.
For a team that uses Semrush exclusively, the calculus shifts. AhrefsBot's crawl of your site benefits Ahrefs customers, which likely includes competitors and the agencies pitching them. You can block it without losing anything. I keep it allowed on mqlmagnet.com because I use both platforms and I'd rather have accurate data than a marginal reduction in competitor visibility they can get elsewhere anyway.
This is the same logic I apply to SemrushBot. Both are legitimate crawlers whose value depends entirely on whether you're the customer.
How do you block AhrefsBot?
Add a named block to robots.txt below your default rules. Use User-agent: AhrefsBot followed by Disallow: /. To throttle instead of block, replace the Disallow with Crawl-delay: 10. Ahrefs honors both. No network-edge enforcement is required. |
User-agent: AhrefsBot
Disallow: /
If you're stacking several SEO crawlers in one block, list each User-agent on its own line above a single Disallow, the way I showed in the Wix bot blocking walkthrough. Keep your User-agent: * group separate so nothing else is affected.
Verify the change at yourdomain.com/robots.txt after publishing, then check your logs a few days later. AhrefsBot should be gone.
Does AhrefsBot affect AI visibility?
No. AhrefsBot feeds Ahrefs' SEO index, not any search engine or AI model. Blocking or allowing it has no effect on Google rankings, Bing indexing, or citations in ChatGPT, Perplexity, Claude, or Google AI Overviews. The crawlers that affect those are documented in the AI crawlers overview. |
In the Engine Optimization Matrix, AhrefsBot doesn't touch any cell. It's a measurement tool, not a distribution channel. That makes it one of the few bot decisions you can make purely on cost and convenience without worrying about downstream visibility.
Compare that to GPTBot or ClaudeBot, where blocking has a direct cost in LLMO. Or Bingbot, where blocking cuts a retrieval path for ChatGPT search. AhrefsBot is simpler. Use the tool, keep the bot. Don't use the tool, your call.
If you're not sure which crawlers in your logs actually matter for visibility, the AI crawlers overview covers the good side and the bad bots hub covers the rest. Or book 30 minutes and we'll read your logs together.
About the author
Harold Bell is Founder and CEO of MQL Magnet, a B2B content marketing agency serving enterprise technology brands. He's the creator of the Engine Optimization Matrix (EOM), author of Partner Over Product, and a Forbes Communications Council member.
FAQs
What is AhrefsBot?
AhrefsBot is the web crawler operated by Ahrefs. It crawls the web to discover pages and the links between them, building the backlink index behind Ahrefs Site Explorer, Domain Rating, and Keywords Explorer.
Does AhrefsBot obey robots.txt?
Yes. AhrefsBot honors Disallow directives and the Crawl-delay directive. Changes are picked up on its next visit to your robots.txt file, typically within a day.
Should I block AhrefsBot?
Only if nobody on your team or at your agency uses Ahrefs. Blocking it makes your own domain's data incomplete in Ahrefs reports while doing little to hide your backlink profile from competitors.
Does blocking AhrefsBot hide my backlinks?
No. Ahrefs discovers links to your site by crawling the sites that link to you. Blocking AhrefsBot from your own domain only prevents it from seeing your pages and outbound links.
How do I block AhrefsBot in robots.txt?
Add User-agent: AhrefsBot followed by Disallow: / as a separate block below your default rules. Publish, then verify at yourdomain.com/robots.txt.
Can I slow down AhrefsBot instead of blocking it?
Yes. Use Crawl-delay: 10 under the AhrefsBot user agent to require a ten-second gap between requests. Ahrefs honors this directive.
Is AhrefsBot a bad bot?
Not in the security sense. It's a legitimate, documented, robots.txt-compliant commercial crawler. Whether it's useful to you depends on whether you use Ahrefs.
Does AhrefsBot affect my Google rankings?
No. AhrefsBot has no relationship with Google, Bing, or any AI model. Blocking or allowing it has no effect on search rankings or AI citations.
How do I verify a request is really from AhrefsBot?
Ahrefs publishes its crawler IP ranges. Compare the requesting IP against that list. User agent strings can be faked, so IP verification is the reliable check.
How does AhrefsBot compare to SemrushBot?
Both are SEO platform crawlers that honor robots.txt and publish documentation. The decision to allow either one comes down to which platform you and your agency actually use.
