What powers happy-postcrossing.nl?
Last seen Aug 2026 · 13 technologies across 9 categories
Databases
MySQL
since Jan 2019
Ecommerce
Cart Functionality
since Nov 2021
PrestaShop
since Jan 2019
Font scripts
Google Font API
since Jan 2019
JavaScript libraries
Ethers
since Jul 2026
Live chat
WhatsApp Business Chat
since Feb 2022
Miscellaneous
Open Graph
since Nov 2022
Programming languages
Tag managers
Google Tag Manager
since Nov 2022
Web servers
Apache HTTP Server
since Jan 2019
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 Aug 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 80% phone
- 20% desktop
Netherlands
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.17 / 10 · ranked #10,289,229 of all domains
2 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- Weight: 2.3 MB · 66 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Aug 2026.
Full technology history →
Report an incorrect detection
Recent changes
- dropped core-js Aug 2026
- dropped Facebook Pixel Aug 2026
- dropped Google Analytics Aug 2026
- detected Ethers Jul 2026
- dropped Isotope Apr 2026
- dropped OWL Carousel Apr 2026