ua-tracer by Paul Kinlan

recent traces · ua-tracer

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 BeaconResearchBot/0.1 (+https://beacon.lightsoutrepo.dev/crawler).

clear
TimestampUser AgentAssets
2026-09-19 15:57:25.009 UTC
BeaconResearchBot/0.1 (+https://beacon.lightsoutrepo.dev/crawler)
0
no JS

By user agent

Running counts across all 11947 homepage requests (1 distinct agents). Click one to set the filter above.

User AgentRequestsJS ran
BeaconResearchBot/0.1 (+https://beacon.lightsoutrepo.dev/crawler)
1 0

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 path /robots.txt to user agent BeaconResearchBot/0.1 (+https://beacon.lightsoutrepo.dev/crawler). 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.

PathRequestsDistinct UAs
/robots.txt 4 1

Requests (4 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.

TimestampPathUser Agent (click for reverse lookup)Related trace
2026-09-19 15:57:26.933 UTC /robots.txt BeaconResearchBot/0.1 (+https://beacon.lightsoutrepo.dev/crawler) X0V8UluB (−1.9s)
2026-09-19 15:57:26.918 UTC /robots.txt BeaconResearchBot/0.1 (+https://beacon.lightsoutrepo.dev/crawler) X0V8UluB (−1.9s)
2026-09-19 15:57:24.849 UTC /robots.txt BeaconResearchBot/0.1 (+https://beacon.lightsoutrepo.dev/crawler) X0V8UluB (+160ms)
2026-09-19 15:57:24.845 UTC /robots.txt BeaconResearchBot/0.1 (+https://beacon.lightsoutrepo.dev/crawler) X0V8UluB (+164ms)

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