Référence technique et guide d'architecture

HTTP User-Agent String Parser & Client Inspector — Guide de référence

Inspect browser, OS, engine, device type, and CPU architecture from any User-Agent string with zero server logs.

Paramètres clés et contrôles

User-Agent String Inputstring

Controls the user-agent string input setting for HTTP User-Agent String Parser & Client Inspector in real time.

Par défaut : Interactive
Input U Astring

Configures input u a during client-side http user-agent string parser & client inspector computation.

Par défaut : Preset sample
Live Clientconfiguration

Configures live client during client-side http user-agent string parser & client inspector computation.

Par défaut : Auto
HTTP Input Sourcestring | buffer

Primary input payload or parameter set for HTTP User-Agent String Parser & Client Inspector.

Par défaut : Sample preset

Conseils de pro et bonnes practices

Parsed Payload JSON

Complete normalized JSON structure ready to copy into your backend or API test suite.

The Netscape & Mozilla Era

Netscape Navigator was code-named Mozilla. When webmasters created modern frames and JavaScript tables, they routed them exclusively to browsers starting with Mozilla/ . When Microsoft introduced Internet Explorer, it prepended Mozilla/4.0 (compatible; MSIE...) so servers wouldn't break.

WebKit, Chrome & Safari

Apple created WebKit for Safari and added KHTML, like Gecko so Gecko-optimized websites rendered cleanly. Later, Google created Chrome and included both AppleWebKit and Safari tokens to inherit website compatibility.

Pièges courants et dépannage

Unexpected output or validation warning in HTTP User-Agent String Parser & Client Inspector

Verify that your user-agent string input matches the expected string format. Load a built-in sample preset to compare structural formatting.

Exported user agent parser online result differs across target environments

Check the input u a setting in HTTP User-Agent String Parser & Client Inspector to ensure encoding, precision, or specification version matches your target runtime.

Outils et utilitaires connexes

Tous les outils →