omrilotan/isbot
Some data may be outdated — see provenance labels.
🤖/👨🦰 Detect bots/crawlers/spiders using the user agent string observed · 2026-09-24
Health v2 · maintenance only
73/100
- Activity 91
- Release rhythm 35
- Longevity 100
Flags: no_releases
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-22. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 4107
- days_rel: n/a
- days_push: 55
- n_releases_24m: 0
Adoption not part of the score
1160 stars · 86 forks observed · 2026-09-24
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
isbot is a lightweight TypeScript library that identifies bots, crawlers, and spiders by matching user agent strings against a maintained regular expression pattern. It ships as an npm package usable in Node.js, browsers, and edge runtimes, with helpers for extracting matched patterns.
Use cases
- detect bot traffic in express middleware
- check if a user agent is a crawler
- filter out spiders from analytics page views
- identify googlebot requests in node http server
- exclude bots from server-side rendering or prerendering
- parse user agent strings to detect automated clients
When to choose
- you need a tiny, dependency-free bot detection check in JavaScript or TypeScript
- you want a maintained, regularly updated user agent pattern list
- you need it to run in browser, Node, or edge environments
When to avoid
- you need full user agent parsing with browser, OS, and device details
- you need behavioral bot detection beyond static user agent matching
- you work outside the JavaScript ecosystem
Facets
library · maturity active
parser http-server middleware web-development analytics security developer-tools browser cross-platform user-agent bot-detection crawler-detection typescript npm-package nodejs web-server
2 sources
- readme: https://github.com/omrilotan/isbot · fetched 2026-09-24 · de2ec105bbab
- homepage: https://isbot.js.org/ · fetched 2026-08-29 · eccf036ff7cc
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| omrilotan/isbot | main | 73 |
For agents
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem