What powers sellizer.com?
Last seen Aug 2026 · 16 technologies across 9 categories
Analytics
CDN
Font scripts
Issue trackers
JavaScript libraries
Miscellaneous
Tag managers
UI frameworks
Webmail
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 Sep 2026.
- robots.txt found
- llms.txt found
- ai.txt not found
- Sep 2026 *: Restricted (was Allowed)
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 100% desktop
Poland
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.95 / 10 · ranked #1,669,314 of all domains
18 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Infrastructure
- Email: no MX record returned, SPF names Google Workspace
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, wildcard, expires Nov 2026
- Common Crawl link graph: rank 272,275, 4 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.sellizer.com | 13 |
| offer.sellizer.com | 7 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Microsoft Clarity Jul 2026
- detected Open Graph Mar 2026
- detected Microsoft Clarity Feb 2026