What powers yapcjapan.org?
Last seen Oct 2026 · 23 technologies across 17 categories
Advertising
Analytics
Authentication
Caching
CDN
CMS
Font scripts
Issue trackers
JavaScript frameworks
JavaScript libraries
Miscellaneous
PaaS
Security
Tag managers
Video players
Web servers
Widgets
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 Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Aug 2026 robots.txt appeared
- Aug 2026 * added to robots.txt
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| yapc | #18 | 0 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No AI crawlers blocked
Audience
- 74% desktop
- 26% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.31 / 10 · ranked #191,708 of all domains
98 referring domains · OpenPageRank
Search traffic
0 est. monthly organic visits (US)
1 keywords in Google's top 30
Core Web Vitals
| LCP | 0.7 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- CDN: Fastly
- Weight: 3.0 MB · 105 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Registered May 2016 (10 years) via GMO Internet Group, Inc. d/b/a Onamae.com, renews May 2027
- Hosted on Fastly (185.199.108.153, IPv6)
- DNS: Cloudflare DNS
- Email: no MX record returned
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 443,043, 2 hosts
- Verified with: Google
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| blog.yapcjapan.org | 18 |
| yapcjapan.org | 8 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Priority Hints Aug 2026
- detected Cloudflare Bot Management May 2026
- detected Amazon CloudFront Apr 2026