What powers previrb.com.br?
Last seen Oct 2026 · 25 technologies across 15 categories
Analytics
CMS
Databases
Ecommerce
JavaScript libraries
Miscellaneous
PaaS
Performance
Programming languages
Security
Tag managers
UI frameworks
Web servers
Webmail
WordPress plugins
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 61% phone
- 39% desktop
Brazil
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.72 / 10 · ranked #18,731,660 of all domains
1 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.6 s |
| INP | 100 ms |
| CLS | 0.1 |
| TTFB | 2100 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Portuguese (Brazil)
- Weight: 2.2 MB · 52 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- PREVIRB | Fundação de Previdência dos Servidores do Instituto de Resseguros do Brasil
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on LEVEL3 (8.242.93.49)
- DNS: Azure DNS
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC quarantine
- SSL: GlobalSign, RSA 2048, expires Feb 2027
- Common Crawl link graph: rank 24,830,851, 3 hosts
- Verified with: GlobalSign
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- detected core-js Sep 2026
- detected ResponsiveVoice Sep 2026
- detected Tailwind CSS Aug 2026
- detected Google Analytics Feb 2026
- detected Google Tag Manager Feb 2026
- detected Microsoft Clarity Feb 2026
- dropped core-js Dec 2025
- dropped Google Analytics Dec 2025
- dropped Google Tag Manager Dec 2025
- dropped Microsoft Clarity Dec 2025