CODEWITHSUNDEEP
firefoxmobilemobile-safariuser-agent
aaviss
aaviss

Reputation: 411

What is gzip(gfe) in user agent

I recently see lot of request to my server from browsers with gzip(gfe) in user agent. Which browser uses them in user agent. What it actually do. Some examples below:

Upvotes: 1

Views: 5660

Answers (2)

WRFan
WRFan

Reputation: 157

Weird stuff. It's also on youtube. Request:

https://www.youtube.com/embed/XXX

where "XXX" is the video ID. Look at the source code:

"INNERTUBE_CONTEXT":
{
    "client":
    {
        "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.1851.0 Safari/537.36 Edg/115.0.1851.0,gzip(gfe)",
    }
}

A POST request goes off to:

https://www.youtube.com/youtubei/v1/player?key=XXX&prettyPrint=false

where "XXX" is some fancy identifier. The POST data replicates the code above.

"gzip" probably means browser supports gzip compression. What's "gfe"?

Upvotes: 0

Nickolay
Nickolay

Reputation: 32063

https://developers.whatismybrowser.com/useragents/parse/#parse-useragent decodes it as "via Google Frontend". An answer to a similar question here on SO says

You will see this token, if a user translate[s] your website in another language with the Google Translator.

...that is when Google makes a request to your site on behalf of the user when the user uses Google Translate to translate your web page. I just tried it and can confirm I see the request with ,gzip(gfe) in the user agent. The referrer looks like: https://translate.google.com/translate?sl=auto&tl=es&u=<ORIGINAL URL>

Upvotes: 4

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