What powers f-pen.pl?
Last seen Sep 2026 · 27 technologies across 13 categories
Analytics
Ecommerce
Font scripts
Issue trackers
JavaScript libraries
Miscellaneous
Performance
Reverse proxies
Rich text editors
Security
Tag managers
Web servers
Widgets
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
- 68% phone
- 32% desktop
Poland
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.65 / 10 · ranked #5,292,127 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 75 ms |
| CLS | 0.05 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Weight: 0.0 MB · 2 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on ATMAN-ISP-AS ATM S.A. (77.79.221.148)
- DNS: dcsaas.net
- Email: dcsaas.net
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Shoper, RSA 2048, expires Apr 2027
- Common Crawl link graph: rank 4,752,227, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| f-pen.pl | 17 |
| www.f-pen.pl | 15 |
Full technology history →
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Recent changes
- detected Font Awesome Sep 2026
- detected Froala Editor Sep 2026
- detected Google Font API Sep 2026
- detected HSTS Sep 2026
- detected lit-element Sep 2026
- detected lit-html Sep 2026
- detected Open Graph Sep 2026
- detected Priority Hints Sep 2026
- detected PWA Sep 2026
- detected reCAPTCHA Sep 2026
- detected Sentry Sep 2026
- detected Turbo Sep 2026
- dropped Element UI Aug 2026
- dropped Font Awesome Aug 2026
- dropped Froala Editor Aug 2026
- dropped Google Font API Aug 2026
- dropped HSTS Aug 2026
- dropped lit-element Aug 2026
- dropped lit-html Aug 2026
- dropped Open Graph Aug 2026
- dropped Priority Hints Aug 2026
- dropped PWA Aug 2026
- dropped reCAPTCHA Aug 2026
- dropped Turbo Aug 2026
- dropped Vue.js Aug 2026
- detected Element UI May 2026
- detected Vue.js May 2026