What powers letterpad.app?
Last seen Aug 2026 · 26 technologies across 14 categories
Advertising
Google AdSense
since Jul 2024
Analytics
Google Analytics
since Nov 2022
Authentication
NextAuth.js
since Aug 2023
CDN
Cloudflare
since May 2022
Cloudinary
since Feb 2024
Font scripts
Google Font API
since Mar 2023
JavaScript frameworks
Miscellaneous
PaaS
Vercel
since Aug 2023
Performance
Priority Hints
since Dec 2023
Programming languages
Node.js
since May 2022
Security
Tag managers
Google Tag Manager
since Jul 2024
UI frameworks
Webmail
Google Workspace
since Dec 2022
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
Open Page Rank
1.76 / 10 · ranked #4,571,951 of all domains
8 referring domains · OpenPageRank
Infrastructure
- Hosted on Amazon Web Services (216.150.1.1)
- DNS: Vercel
- Email: simplelogin.co
- Email security: SPF (soft fail), DMARC quarantine, CAA
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 1,971,412, 105 hosts
- Verified with: Brevo, Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| letterpad.app | 21 |
| jireh.letterpad.app | 16 |
| demo.letterpad.app | 13 |