What powers isef.jp?
Last seen Aug 2026 · 21 technologies across 15 categories
Advertising
CDN
CMS
Databases
Font scripts
JavaScript libraries
Miscellaneous
PaaS
Page builders
Performance
Programming languages
Security
Web servers
Widgets
WordPress plugins
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.07 / 10 · ranked #1,475,351 of all domains
18 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 1.2 MB · 60 requests
- WordPress theme: brite · all themes
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Automattic (WordPress.com) (192.0.78.150)
- DNS: WordPress.com DNS
- Email: no MX record returned
- SSL: Google Trust Services, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 10,328,892, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Cloudflare Jul 2026
- detected Cloudflare Bot Management Jul 2026
- detected Colibri WP Jul 2026
- detected core-js Jul 2026
- detected Google AdSense Jul 2026
- detected HSTS Jul 2026
- dropped HTTP/3 Jul 2026
- detected jQuery Jul 2026
- detected jQuery Migrate Jul 2026
- detected MySQL Jul 2026
- detected Nginx Jul 2026
- detected PHP Jul 2026
- detected Priority Hints Jul 2026
- detected reCAPTCHA Jul 2026
- detected RSS Jul 2026
- detected Smash Balloon Instagram Feed Jul 2026
- detected Twitter Jul 2026
- detected Twitter Ads Jul 2026
- detected Twitter Emoji (Twemoji) Jul 2026
- detected WordPress Jul 2026
- detected WordPress Block Editor Jul 2026
- detected WordPress.com Jul 2026
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- dropped Cloudflare Feb 2026
- dropped Cloudflare Bot Management Feb 2026
- dropped Google Font API Feb 2026
- dropped jQuery UI Feb 2026