What is LibreCrawl?
LibreCrawl is an open-source SEO crawler used to perform technical website audits. It analyzes meta tags, schema markup, hreflang, and PageSpeed metrics to help SEO professionals identify and fix issues on their sites. You can set up Agent Analytics to see when LibreCrawl visits your website.
Category
| Example User Agent | LibreCrawl/1.0 (Web Crawler) |
| Source | Official Website |
| Triggered By | Customer-configured crawl |
| Used for AI Model Training | Not expected |
| Affects AI Chat & Search Visibility | Not directly |
| Expected To Follow Robots.txt | Yes |
Why Is LibreCrawl Visiting My Website?
Your domain appears in the ranking, backlink, or competitor data maintained by LibreCrawl's operator. A customer may be tracking your site, one of your competitors, or a backlink that connects another site to yours.
Should I Block LibreCrawl?
Consider blocking LibreCrawl only if you do not want your pages included in SEO databases. It does not influence how search engines rank you, and blocking it will not hide backlinks to your site because those are discovered on the linking sites. For context, 7% of the top websites we track currently have robots.txt rules for LibreCrawl.
How Do I Block LibreCrawl Using Robots.txt?
Add this rule to your robots.txt file to block LibreCrawl from accessing your website, or use Automatic Robots.txt to block all SEO crawlers at once. You can customize which pages are blocked by swapping out / for a different path.
User-agent: LibreCrawl # https://knownagents.com/agents/librecrawl
Disallow: /Insights for LibreCrawl
As of October 28, 2026, this data reflects agent visits measured across thousands of websites using Agent Analytics, combined with daily scans of the top 1000 websites and their robots.txt files.
Robots.txt Compliance
Country of Origin
Robots.txt Blocked Percentage
Frequently Asked Questions
What Traffic Patterns Should I Expect From LibreCrawl?
LibreCrawl usually performs comprehensive, link-following crawls rather than spot checks. Visit frequency may rise while a customer actively monitors your site or a related market.
Does LibreCrawl Follow Robots.txt Rules?
LibreCrawl is expected to follow robots.txt rules, so a disallow rule is the appropriate first step if you want to block it. Automatic Robots.txt can add and maintain that rule, while Agent Analytics lets you verify whether LibreCrawl respects it.
Is LibreCrawl Used for AI Model Training?
Not ordinarily. LibreCrawl is not categorized as an AI training scraper or data provider, so AI model training is not its expected purpose.
Does Blocking LibreCrawl Affect AI Search or Citations?
Not directly. LibreCrawl's expected purpose is not to supply an AI search index or retrieve pages for AI-generated answers.
Does LibreCrawl Access Private Content?
No. LibreCrawl can reach only public pages, and authentication prevents it from accessing private content.
How Can I Verify a Request From LibreCrawl?
Agent Analytics tracks LibreCrawl visits in real time. You can also check your server logs for requests whose user-agent string contains "LibreCrawl". Look for comprehensive site crawls that follow internal links. Because LibreCrawl does not publish a verification method, any client can claim its identity and a log match is only a clue.