What powers rsu21.net?
Last seen Sep 2026 · 33 technologies across 15 categories
Analytics
CDN
Databases
Editors
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Programming languages
Security
Tag managers
Translation
Video players
Webmail
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 Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 robots.txt appeared
- Sep 2026 * added to robots.txt
AI Crawlers
No AI crawlers blocked
Audience
- 86% desktop
- 14% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.40 / 10 · ranked #2,674,665 of all domains
27 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 1400 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 1.6 MB · 49 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Kennebunk High School
- Country: United States
From Wikidata (CC0).
Infrastructure
- Hosted on Cloudflare (104.17.68.73)
- DNS: maine.edu
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 8,067,928, 11 hosts
- Verified with: Apple Business, Google, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| srs.rsu21.net | 27 |
| kes.rsu21.net | 25 |
| khs.rsu21.net | 25 |
| mld.rsu21.net | 25 |
| msk.rsu21.net | 25 |
| www.rsu21.net | 25 |
| kcs.rsu21.net | 23 |
| rsu21.net | 12 |
| athletics.rsu21.net | 10 |
Full technology history →
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Recent changes
- detected Marked Jul 2026
- detected VideoJS Jun 2026
- detected Stimulus Mar 2026
- detected Closure Library Jan 2026
- dropped Google Sites Dec 2025
- detected Htmx Nov 2025