Request Map Generator vs Blacklight: catalog facts
 Request Map Generator |  Blacklight |
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Free Free to use. |
Free Free to use, run by a donation-supported newsroom. |
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Web |
Web |
- Visual map of all third-party domains a page calls
- Shows where bytes come from and which domains are slow
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- Detects fingerprinting, session recording and keystroke capture
- Names data flows to major platforms
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- Tests can queue behind other pending jobs
- Shows a single page load rather than a whole site
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- Scans a single page per run
- Cached results may be shown unless a fresh scan is forced
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Web application |
Web application |
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Closed source |
Closed source |
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License not stated |
License not stated |
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No account needed |
No account needed |
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Needs internet |
Needs internet |
Checked September 23, 2026 | Checked September 23, 2026 |
Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.
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