peer39_crawler User-Agent & Blocking Rules
Operated by Peer39. Verify the official user-agent string and safety status for this bot. Use the tools below to run a live crawlability test and get copy-paste robots.txt rules to manage its access. Crawler info last updated on .
What is peer39_crawler?
Peer39's crawler analyzes page content to provide contextual advertising data (brand safety, keywords) for advertisers.
Test if peer39_crawler can access your URL
Enter URL to test if peer39_crawler is allowed or blocked.
Is peer39_crawler safe?
It is recommended to use caution with peer39_crawler.
Caution bots may have legitimate uses but can be resource-intensive or used for competitive intelligence.
For more information about our safety badges, visit our documentation.
User-Agent String used by peer39_crawler
peer39_crawlerHow to block peer39_crawler with robots.txt?
Add the following standard robots.txt rule to prevent peer39_crawler from accessing your site.
User-agent: peer39_crawler Disallow: /
What happens if I block peer39_crawler?
Medium Impact
Blocking peer39_crawler will prevent this SEO tool from analyzing your website. This may affect SEO audits, backlink tracking, or competitive analysis tools that use this crawler. Your search rankings will NOT be affected.
Common use cases for peer39_crawler
Understanding how peer39_crawler is typically used can help you make informed decisions about whether to allow or block it on your website.
- Analyzes website structure and SEO health
- Tracks backlinks and referring domains
- Monitors keyword rankings and competitor analysis
- Crawls sites for technical SEO audits
- Generates reports for SEO professionals