Pricing

$10.00 / 1,000 url checkeds

HTTP Compression Checker - gzip, Brotli Test + Bytes Saved

Check if a URL serves compressed responses. Input: urls array. Output: JSON per URL with supported encodings (gzip, brotli, deflate), compressed vs uncompressed size, and bytes/percent saved. Catch missing compression that slows sites. Priced per URL checked.

Pricing

$10.00 / 1,000 url checkeds

Rating

0.0

(0)

Developer

Anthony Snider

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Bookmarked

Total users

Monthly active users

15 days ago

Last modified

HTTP Compression Checker

Find out instantly whether a URL serves compressed responses — and how many bytes it's wasting if it doesn't.

Live on the Apify Store — run it instantly or call it as an agent tool via Apify MCP.

What you get

Detects the response Content-Encoding: gzip, brotli (br), deflate, or none.
Measures the compressed transfer size vs. the uncompressed body and computes the exact savings %.
Flags text/HTML/CSS/JS resources that arrive uncompressed — the easy wins that are slowing your site.
Single URL or bulk list, follows redirects, reports the final URL and HTTP status.

Input

{
  "url": "https://github.com",
  "urls": ["https://example.com", "google.com"],
  "maxUrls": 50
}

url — a single URL to check.
urls — a list of URLs (bare domains are fine; https:// is added automatically).
maxUrls — safety cap per run (default 50, max 200).

Output

One dataset item per URL:

{
  "url": "https://github.com",
  "finalUrl": "https://github.com/",
  "status": 200,
  "contentType": "text/html; charset=utf-8",
  "encoding": "gzip",
  "compressed": true,
  "compressedBytes": 53120,
  "uncompressedBytes": 268044,
  "savingsPct": 80.18,
  "flaggedUncompressed": false,
  "checkedAt": "2026-06-24T00:00:00.000Z"
}

flaggedUncompressed: true means a compressible text resource was served with no compression — fix it for a quick speed win.

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