What powers 
quercus.pt?
Last seen Oct 2026 · 76 technologies across 30 categories
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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 Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 *: Restricted (was Allowed)
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| quercus | #86 | 17 |
| autctone | #44 | 0 |
| quercus devia | #61 | 0 |
| radiation poisoning from microwave | #88 | 0 |
| montados portugal | #85 | 0 |
| do ovens use radiation | #88 | 0 |
| educao ambiental | #54 | 0 |
| dangers of microwaves radiation | #52 | 0 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No AI crawlers blocked
Audience
- 57% phone
- 43% desktop
Portugal
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.75 / 10 · ranked #132,888 of all domains
282 referring domains · OpenPageRank
Search traffic
17 est. monthly organic visits (US)
8 keywords in Google's top 30
Core Web Vitals
| LCP | 1.1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Portuguese (Portugal)
- CDN: Cloudflare
- Weight: 1.0 MB · 45 requests
- WordPress theme: chariti (child: chariti-child) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Quercus
- Founded: 1985
- Industry: Non-profit and religious (declares
NGO) - Country: Portugal
From the homepage's own structured data (Oct 2026) and Wikidata (CC0).
Infrastructure
- Hosted on Cloudflare (104.21.20.158, IPv6)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 43,231, 42 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| umaarvorepelafloresta.quercus.pt | 32 |
| alertalitio.quercus.pt | 28 |
| quercus.pt | 25 |
| www.quercus.pt | 19 |
| polinizadores.quercus.pt | 18 |
| praiasouro.quercus.pt | 17 |
| minutoverdevaiaescola.quercus.pt | 9 |
Full technology history →
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