What powers brtb.jp?
Last seen Oct 2026 · 10 technologies across 9 categories
Analytics
Google Analytics
since Apr 2020
Font scripts
Font Awesome
since Jul 2021
JavaScript libraries
Miscellaneous
PWA
since Aug 2022
Programming languages
Java
since Sep 2021
Reverse proxies
F5 BigIP
since Sep 2026
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Apr 2020
Web servers
Apache HTTP Server
since Jan 2019
AI Crawlers
robots.txt could not be read at the last check (Nov 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 100% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.40 / 10 · ranked #417,177 of all domains
30 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 175 ms |
| CLS | 0.15 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Weight: 0.0 MB · 2 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- DNS: d-53.info
- Email: no MX record returned
- Email security: DNSSEC signed
- SSL: DigiCert, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 264,151, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| spweb.brtb.jp | 9 |
| mb.brtb.jp | 1 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped jQuery Oct 2026
- dropped jQuery Mobile Oct 2026
- dropped jQuery UI Oct 2026
- detected Swiper Oct 2026