What powers corumwatch.jp?
Last seen Oct 2026 · 25 technologies across 13 categories
Advertising
Google Ads
since Oct 2023
Microsoft Advertising
since Oct 2023
Analytics
Cloudflare Browser Insights
since Nov 2025
Google Ads Conversion Tracking
since Oct 2023
Google Analytics
since Jan 2019
Microsoft Clarity
since Oct 2023
CDN
cdnjs
since Nov 2021
Cloudflare
since May 2022
Google Hosted Libraries
since Feb 2022
jsDelivr
since Jun 2021
CMS
Databases
MySQL
since Jun 2021
Font scripts
Typekit
since Jun 2021
JavaScript frameworks
JavaScript libraries
Miscellaneous
HTTP/3
since Nov 2024
Open Graph
since Sep 2022
Programming languages
PHP
since Jan 2019
Security
reCAPTCHA
since Jun 2021
SEO
Tag managers
Google Tag Manager
since Jan 2019
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 77% phone
- 23% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.03 / 10 · ranked #1,544,652 of all domains
24 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- CDN: Cloudflare
- Weight: 3.9 MB · 86 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Cloudflare (104.21.46.240, IPv6)
- DNS: Cloudflare DNS
- Email: secure.ne.jp
- Email security: SPF (soft fail), no DMARC record
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Jan 2027
- Common Crawl link graph: rank 12,052,984
- Verified with: Google, Meta Business
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted