LinkCheckerBot is a bot in the SEO crawlers category, operated by LinkChecker.Pro.
LinkCheckerBot is a backlink monitoring crawl
SEO crawlers map links, keywords and technical issues for SEO tools and backlink databases. They help the tool's customers, often your competitors, rather than you. Rate limit or block the ones you do not use.
LinkCheckerBot identifies itself with this user agent string:
Mozilla/5.0 (compatible; LinkCheckerBot/2.0; +https://linkchecker.pro/robot/)Anyone can copy a user agent string. Transfon Security also checks where each request comes from, so a request that claims to be a known crawler but comes from the wrong network is treated as a fake, not as the real crawler.
LinkCheckerBot follows robots.txt, so these rules stop it crawling the paths you choose. robots.txt is a plain text file at the root of your domain, such as https://example.com/robots.txt.
User-agent: LinkCheckerBot Disallow: /
User-agent: LinkCheckerBot Disallow: /private/ Disallow: /search
User-agent: LinkCheckerBot Allow: /blog/ Disallow: /
User-agent: LinkCheckerBot Allow: / User-agent: * Disallow: /
User-agent: LinkCheckerBot group, LinkCheckerBot ignores your User-agent: * rules, so repeat any that should still apply.LinkCheckerBot from LinkCheckerBot's user agent; check LinkChecker.Pro's own documentation if it publishes a different robots.txt name.Treat robots.txt as a statement of your policy, and enforce it where requests arrive.
LinkCheckerBot works for an SEO tool's customers, often your competitors. It adds server load without readers, so rate limit or block it unless you use the tool.
Transfon Security for publishersSEO crawlers map landing pages and links for competitor research. Keep LinkCheckerBot's visits out of campaign data.
Transfon Security for advertisersLinkCheckerBot can map your catalogue, prices and site structure for competitors. Block it unless you use the tool yourself.
Transfon Security for e-commerceAllow LinkCheckerBot only if your team uses the tool; otherwise rate limit it on docs and marketing pages.
Transfon Security for SaaS and APIsrobots.txt is a request, not an enforcement. Transfon Security shows LinkCheckerBot by name in the Top Bots report, so you can see how often it visits and which pages it reads. Block or allow it with a User Agent rule, or slow it down with a rate limit decision rule.
Transfon Security
LinkCheckerBot is a bot in the SEO crawlers category, operated by LinkChecker.Pro. LinkCheckerBot is a backlink monitoring crawl
Yes. LinkCheckerBot follows robots.txt, so a Disallow rule for the LinkCheckerBot user agent stops it from crawling the paths you list.
Add "User-agent: LinkCheckerBot" followed by "Disallow: /" to the robots.txt file at the root of your site. To enforce it, block requests whose user agent contains "LinkCheckerBot" at your WAF. In Transfon Security that is one User Agent block rule.
No. robots.txt is voluntary, so LinkCheckerBot may not follow it, and anyone can send LinkCheckerBot's user agent, so a fake LinkCheckerBot ignores your rule. Enforce the rule where requests arrive, at your WAF, and check the source network.
SEO crawlers map links, keywords and technical issues for SEO tools and backlink databases. They help the tool's customers, often your competitors, rather than you. Rate limit or block the ones you do not use.
Transfon Security identifies every bot in this directory in your traffic reports, flags fake search crawlers, and lets you allow, block or rate limit each bot.
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