What powers rfb.gov.br?
Last seen Jun 2026 · 40 technologies across 20 categories
Caching
Varnish
since Aug 2022
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cdnjs
since Jul 2025
Cloudflare
since Jul 2025
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Plone
since Jun 2018
Development
Storybook
since Jul 2025
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since Aug 2022
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Google Font API
since Jul 2025
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Sentry
since Jul 2024
JavaScript frameworks
JavaScript libraries
Miscellaneous
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Python
since Jun 2018
TypeScript
since Jul 2024
Security
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Zope
since Aug 2022
Webmail
Microsoft 365
since Aug 2022
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Facebook
since Jun 2018
Google Plus
since Jun 2018
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
Audience
- 95% desktop
- 5% phone
Brazil
Portugal
Ireland
United States
Japan
Germany
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
7.02 / 10 · ranked #40,879 of all domains
353 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Portuguese (Brazil)
- Weight: 3.3 MB · 25 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| sal.rfb.gov.br | 17 |
| doi.rfb.gov.br | 12 |
| www.rfb.gov.br | 12 |
| redesimservicos.rfb.gov.br | 10 |
| sped.rfb.gov.br | 7 |
| dados.rfb.gov.br | 4 |
| dadosabertos.rfb.gov.br | 4 |
Full technology history →
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Recent changes
- dropped Java Aug 2025