What powers postalserver.io?
Last seen Aug 2026 · 8 technologies across 7 categories
Caching
Varnish
since Oct 2021
CDN
Fastly
since Oct 2021
JavaScript frameworks
Miscellaneous
Open Graph
since Sep 2022
PaaS
GitHub Pages
since Oct 2021
Programming languages
Node.js
since Oct 2021
UI frameworks
Tailwind CSS
since Mar 2024
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 82% desktop
- 18% phone
India
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #331,781 of all domains
77 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- CDN: Fastly
- Weight: 1.2 MB · 31 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.