Invisible tool scans
SEO bots like Peer39 Crawler can disappear in logs.
SEO Tools
Peer39 Crawler Crawl Analysis
🟡 Caution
See how often the Peer39 Crawler (Peer39) SEO/audit crawler hits your site. Separate tool scans from real users.
Don't manage Peer39 Crawler 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
Set up in minutes with a meta tag-real-time detection and analysis.
Real-Time Tracking
See instantly when crawlers visit your website
Detailed Analysis
See which pages are crawled and how crawlers behave
Fast Notifications
Get instant alerts for important crawl visits
Secure Tracking
Passive crawl analysis without hurting site performance
How it works
Start seeing crawler visits in three steps.
1
Create an account
Sign up for free and add your site.
2
Add the meta tag
Place the meta tag from your dashboard in your site's head section.
3
Track visits
See Peer39 Crawler and other crawler visits in your dashboard.
Frequently asked questions
About Peer39 Crawler detection and NMOS.NET.
What is Peer39 Crawler?
Peer39 Crawler 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 separately.
Start tracking Peer39 Crawler visits
Quick setup with a meta tag. See crawl traffic with category and safety levels.
Tracking Systems
Similar crawlers by category or risk level