What powers 
selectra.pt?
Last seen Aug 2026 · 42 technologies across 23 categories
A/B Testing
Advertising
Analytics
Caching
CDN
CMS
CRM
Databases
Font scripts
Hosting
JavaScript frameworks
JavaScript libraries
Marketing automation
Miscellaneous
PaaS
Page builders
Performance
Programming languages
Security
Tag managers
UI frameworks
Widgets
AI Crawlers
Blocks 4 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Training crawlers
- Bytespider Blocked
- ClaudeBot Blocked
- meta-externalagent Blocked
Search and AI assistants
- PetalBot Blocked
The other 29 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
4 of 33 AI crawlers blocked
Audience
- 77% phone
- 20% desktop
- 3% tablet
Portugal
Spain
France
Brazil
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.18 / 10 · ranked #465,324 of all domains
85 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 175 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Portuguese
- CDN: Cloudflare
- Weight: 0.6 MB · 22 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Cloudflare (104.18.18.231, IPv6)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC quarantine, CAA
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Nov 2026
- Common Crawl link graph: rank 2,636,273, 5 hosts
- Verified with: Google, Meta Business, Zoho
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| ww.selectra.pt | 26 |
| comparador.selectra.pt | 18 |
| go.selectra.pt | 18 |
| energia.selectra.pt | 17 |
| selectra.pt | 13 |
| estimacao.selectra.pt | 9 |
Full technology history →
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Recent changes
- detected Alpine.js Jul 2026
- detected Tailwind CSS Jul 2026
- detected Cloudflare Browser Insights Oct 2025