What powers esa.io?
Last seen Jun 2026 · 31 technologies across 17 categories
Advertising
Analytics
CDN
Font scripts
Issue trackers
JavaScript Frameworks
JavaScript Libraries
Marketing automation
Miscellaneous
PaaS
Programming languages
RUM
Security
UI frameworks
Web frameworks
Widgets
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| hiroshi harada | #96 | 2 |
| tanabe miku | #50 | 0 |
| techlead wife | #51 | 0 |
| hiroyuki mori | #94 | 0 |
| ino llc | #69 | 0 |
| esa2 | #64 | 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.
Audience
- 100% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
6.15 / 10 · ranked #100,059 of all domains
245 referring domains · OpenPageRank
Search traffic
2 est. monthly organic visits (US)
6 keywords in Google's top 30
Core Web Vitals
| LCP | 1.1 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- Weight: 11.2 MB · 99 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| esa.io | 24 |
| asakusarb.esa.io | 21 |
| docs.esa.io | 21 |
| www.esa.io | 13 |
| team.esa.io | 7 |
Full technology history →
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Recent changes
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025