ua-tracer by Paul Kinlan

ua-tracer

what does a user agent actually fetch, follow & run?

All recent homepage requests, newest first. This page does not mint a new trace (unlike /), so you can browse the log without adding noise.

Recent homepage requests

Filter by user agent and the matching requests appear right below. Showing requests whose user agent contains Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:114.0) Gecko/20100101 Firefox/114.0.

clear
TimestampUser AgentAssets
2026-06-25 10:23:32.698 UTC Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:114.0) Gecko/20100101 Firefox/114.0 0
no JS—
2026-06-25 10:23:29.891 UTC Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:114.0) Gecko/20100101 Firefox/114.0 1
no JSiframe
2026-06-25 09:04:17.087 UTC Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:114.0) Gecko/20100101 Firefox/114.0 0
no JS—
2026-06-25 09:04:15.129 UTC Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:114.0) Gecko/20100101 Firefox/114.0 1
no JSiframe

By user agent

Running counts across the last 200 homepage requests (93 distinct agents). Click one to set the filter above.

User AgentRequestsJS ran
DomainArrivalsBot/0.1 (+homepage-only; research) 1 0
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, l… 1 0
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, l… 1 0
Mozilla/5.0 (X11; Linux x86_64; rv:131.0) Gecko/20100101 Firefox/131.0 1 0
Mozilla/5.0 (compatible; SaaSBrowserBot/1.0; +https://saasbrowser.com/… 1 0
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, l… 1 0
Mozilla/5.0 (Linux; Android 7.1.2; Redmi 4X) AppleWebKit/537.36 (KHTML… 1 0
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko)… 1 1
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Amazonb… 1 0
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:121.0) Gecko/20100101… 1 0
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:121.0) Gecko/20100101 Fir… 1 0
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gec… 1 1
Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/… 1 0
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Fir… 1 1
NetAPI v1 1 0
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, l… 1 0
Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.htm… 1 0
Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/… 1 0
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; ChatGP… 1 0
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, l… 1 0
Mozilla/5.0 (Linux; Android 10; SM-G981B) AppleWebKit/537.36 (KHTML, l… 1 0
Mozilla/5.0 1 0
Mozilla/5.0 (Macintosh; Intel Mac OS X 13_6_0) AppleWebKit/537.36 (KHT… 1 0
Mozilla/5.0 (Linux; Android 9; SAMSUNG SM-A105F) AppleWebKit/537.36 (K… 1 0
Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537… 1 0
← prev51–75 of 93next →

Unsolicited / well-known requests

Paths a user agent fetched on its own that ua-tracer never links to: robots.txt, sitemap.xml, /.well-known/*, llms.txt, the root favicon, and similar. Reveals what an agent probes on its own initiative.

Filtered to user agent Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:114.0) Gecko/20100101 Firefox/114.0. clear filters

By path

Each unsolicited path with its request count and how many distinct user agents hit it. Click a path to see the individual requests; click a user agent below to reverse-look-up everything that UA did.

No unsolicited paths fetched yet.

Requests (0 shown)

The Related trace column links a probe to a homepage trace from the same user agent and IP within 30 minutes (the same crawler that fetched a well-known file usually also loaded /). The offset shows how long before/after the probe that trace was minted.

No unsolicited probe requests match the current filter.

← back to the live tracer (mints a new trace)