What powers theopenletter.io?
Last seen Jun 2026 · 32 technologies across 17 categories
Analytics
Cloudflare Browser Insights
since Aug 2025
Google Analytics
since Jun 2023
Linkedin Insight Tag
since Jun 2023
Blogs
Beehiiv
since Oct 2023
CDN
Ecommerce
Foxy.io
since Nov 2024
Webflow Ecommerce
since Aug 2024
Font scripts
Google Font API
since Jun 2023
Hosting
GoDaddy
since Jun 2023
Issue trackers
Sentry
since Jun 2023
JavaScript frameworks
React
since Jun 2023
JavaScript libraries
Miscellaneous
PaaS
Vercel
since Mar 2026
Page builders
Webflow
since Nov 2023
Performance
Priority Hints
since Oct 2025
Security
Cloudflare Bot Management
since Jun 2023
HSTS
since Aug 2024
PerimeterX
since Aug 2025
reCAPTCHA
since Jul 2024
UI frameworks
Tailwind CSS
since Oct 2025
Web frameworks
Remix
since Jun 2023
Webmail
Google Workspace
since Jun 2023
Audience
- 51% phone
- 49% desktop
South Africa
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.41 / 10 · ranked #2,656,556 of all domains
14 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.1 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 1900 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 6.0 MB · 306 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.theopenletter.io | 20 |
| theopenletter.io | 17 |
| stack.theopenletter.io | 10 |
| events.theopenletter.io | 8 |
| signup.theopenletter.io | 8 |
Full technology history →
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Recent changes
- dropped Google Tag Manager May 2026
- dropped Google Cloud Apr 2026
- dropped Google Cloud CDN Apr 2026
- dropped Google Cloud Storage Apr 2026
- dropped Lovable Apr 2026
- dropped Radix UI Apr 2026
- dropped Tinybird Apr 2026
- detected Vercel Mar 2026
- dropped Amazon ALB Feb 2026
- dropped Amazon Web Services Feb 2026
- dropped TikTok Pixel Feb 2026
- dropped Twitter Ads Feb 2026
- dropped Stripe Jan 2026
- dropped Amazon S3 Nov 2025
- dropped Heroku Nov 2025
- detected Radix UI Nov 2025
- detected Google Tag Manager Oct 2025
- detected Priority Hints Oct 2025
- detected Tailwind CSS Oct 2025
- detected TikTok Pixel Oct 2025
- detected Twitter Ads Oct 2025