What powers server-free.com?
Last seen Apr 2026 · 14 technologies across 10 categories
CMS
Databases
MySQL
since Aug 2022
Font scripts
Google Font API
since Aug 2022
Twitter Emoji (Twemoji)
since Aug 2022
JavaScript libraries
Miscellaneous
Open Graph
since Dec 2022
Programming languages
PHP
since Aug 2022
Security
reCAPTCHA
since Apr 2026
Web servers
Nginx
since Aug 2022
Webmail
Google Workspace
since Aug 2022
WordPress plugins
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 100% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.71 / 10 · ranked #18,917,037 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 25 ms |
| CLS | 0 |
Real user p75, Chrome UX Report, Aug 2026.
Infrastructure
- Hosted on GMO Internet (160.251.71.51)
- DNS: gmoserver.jp
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: GlobalSign, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 10,254,407, 3 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected Contact Form 7 Apr 2026
- detected core-js Apr 2026
- detected reCAPTCHA Apr 2026