What powers stackblitz.io?
Last seen Oct 2026 · 13 technologies across 10 categories
Analytics
Ahoy
since Dec 2021
CDN
Amazon CloudFront
since Sep 2017
Cloudflare
since Jan 2023
Font scripts
Google Font API
since Sep 2017
JavaScript Frameworks
JavaScript Libraries
Miscellaneous
Webpack
since Apr 2019
PaaS
Amazon Web Services
since Apr 2019
Programming languages
Ruby
since Jun 2024
Security
HSTS
since Sep 2022
Web frameworks
Ruby on Rails
since Jun 2024
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Nov 2026.
- robots.txt not found
- llms.txt not checked
- ai.txt not checked
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 100% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.71 / 10 · ranked #135,678 of all domains
116 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- CDN: Amazon CloudFront
- Weight: 0.4 MB · 13 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Amazon Web Services (18.64.174.30, IPv6)
- DNS: Cloudflare DNS
- Email: no MX record returned
- SSL: Amazon Trust Services, RSA 2048, wildcard, expires Apr 2027
- Common Crawl link graph: rank 513,185, 348 hosts
- Verified with: Google
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| angular-editor-wysiwyg.stackblitz.io | 8 |
| angular-live-compiler.stackblitz.io | 8 |
| dom-project-chaiaurcode.stackblitz.io | 8 |
| jsx-view.stackblitz.io | 8 |
| ngx-editor.stackblitz.io | 8 |
| ngx-skeleton-loader-sample.stackblitz.io | 8 |
| programming-courses.stackblitz.io | 8 |
| react-ivn1sokr.stackblitz.io | 8 |
| react.stackblitz.io | 8 |
| titledblookup.stackblitz.io | 8 |
| universityofgujrat-grading.stackblitz.io | 8 |
| web-platform.stackblitz.io | 8 |
| zxing-ngx-scanner.stackblitz.io | 8 |
| angular-wmyn2k.stackblitz.io | 7 |
| angular-calendar-scheduler-demo.stackblitz.io | 6 |
| argentinaprograma-main.stackblitz.io | 6 |
| hero-rarity-survey-results-3.stackblitz.io | 6 |
| hero-rarity-survey-results-4.stackblitz.io | 6 |
| hero-rarity-survey-results.stackblitz.io | 6 |
| react-movies-api.stackblitz.io | 6 |
| typescript-lzex4b.stackblitz.io | 6 |
| angular-calendar-scheduler-demo-kvmava.stackblitz.io | 5 |
| angular-ivy-1lrgdt.stackblitz.io | 5 |
| angular-mfppay.stackblitz.io | 5 |