What powers olk.jp?
Last seen Jul 2026 · 20 technologies across 13 categories
Analytics
Google Analytics
since Jan 2019
Authentication
Facebook Login
since May 2023
CMS
Databases
MySQL
since Jan 2019
Font scripts
Google Font API
since Apr 2024
Hosting
Sakura Internet
since Oct 2022
JavaScript libraries
Miscellaneous
Open Graph
since May 2023
RSS
since Apr 2023
Programming languages
UI frameworks
Video players
YouTube
since May 2023
Web servers
Nginx
since Jan 2019
WordPress themes
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.39 / 10 · ranked #7,630,943 of all domains
3 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Infrastructure
- Hosted on Sakura Internet (59.106.13.178)
- Email: no MX record returned
- Email security: SPF (soft fail)
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 16,174,601, 5 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| new.olk.jp | 15 |
| olk.jp | 13 |
| comp.olk.jp | 2 |
Full technology history →
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Recent changes
- dropped Twitter Emoji (Twemoji) May 2026