Invisible tool scans
SEO bots like Peer39 Crawler/1.0 can disappear in logs.
SEO Tools
Peer39 Crawler/1.0 Crawl Analysis
🟡 Caution
See how often the Peer39 Crawler/1.0 (Peer39) SEO/audit crawler hits your site. Separate tool scans from real users.
Don't manage Peer39 Crawler/1.0 traffic blindly
Crawl budget pressure
Heavy SEO scanning can affect servers and crawl budget.
Unclear permissions
Robots/access policy is weak if you don't know which tools arrive.
Crawl visibility with NMOS.NET
rDNS verification, robots/llms checks, and site readiness—no blocking promises.
rDNS verification
Confirm whether crawler IPs match known reverse-DNS patterns
robots.txt checks
See Allow/Disallow coverage for this crawler against your policy
llms.txt / AI policy
Check llms.txt and the Markdown template from the panel
Site readiness
One score across robots, sitemap, llms, security.txt, and tracking
What NMOS.NET shows for this crawler
Track visits, verify identity, and review policy—no blocking promise.
Crawl budget waste
Spot high-volume scrapers and low-value paths eating crawl capacity.
robots.txt policy check
Compare crawler hits with your Allow/Disallow rules and spot gaps.
Safety & risk level
Catalog safety badges (safe / caution / danger) on every visit filter.
How it works
Start seeing crawler visits in three steps.
1
Create an account
Sign up for free and add your site.
2
Install tracking
Add the meta tag, tracking.js, and optional no-JS beacon; verify with Check.
3
Track and review
See Peer39 Crawler/1.0 visits, verification, and policy checks in your dashboard.
Frequently asked questions
About Peer39 Crawler/1.0 detection and NMOS.NET.
What is Peer39 Crawler/1.0?
Peer39 Crawler/1.0 is a crawler used by SEO and site-audit tools. Operator: Peer39.
Should I block it?
It depends. See the traffic first; be more careful if safety is Caution or Danger.
How long does setup take?
A few minutes of meta tag setup is enough.
Will it mix with other crawlers?
No. Catalog matching records Peer39 Crawler/1.0 separately.
Start tracking Peer39 Crawler/1.0 visits
Free account and a short install. See crawl traffic with category and safety levels.
Tracking Systems
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