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How User Agent Strings Are Generated
A User-Agent (UA) string is an HTTP header that browsers and bots send to identify themselves to web servers. It typically includes the browser name, version, rendering engine, and operating system.
Supported Types
- Desktop Browser — Chrome (Windows, macOS, Linux), Firefox (Windows, macOS), Safari (macOS), Edge, Opera
- Mobile — Chrome Android, Samsung Internet, Safari iOS, Firefox Android
- Bot / Crawler — Googlebot, Bingbot, YandexBot, Facebook crawler, curl, Python requests, Go HTTP client, AhrefsBot, SemrushBot
- Random — mix of all types
Version numbers are randomised within realistic ranges (e.g. Chrome 110–124), so each generated UA looks authentic.
Veelgestelde Vragen
UA strings are used to test browser detection logic, analytics attribution, A/B testing segment rules, bot detection systems, and HTTP client parsing libraries.
Yes. Chrome major versions range from 110 to 124, Firefox from 115 to 126, and Safari minor versions vary — all within the range of versions commonly seen in real traffic.
Yes. Select "Bot / Crawler" from the Type dropdown to get only well-known bot UA strings such as Googlebot, Bingbot, curl and Python requests.
Yes. The bot UA strings match the signatures used by major crawlers. Test your allow/block lists against them.
Yes. Generate up to 1,000 user agents and export to CSV or JSON.
Gerelateerde Tools
Alle gegenereerde data is volledig fictief en niet geschikt voor gebruik als echte persoonsgegevens.