What powers 
rivervalley.io?
Last seen Sep 2026 · 32 technologies across 17 categories
Analytics
Google Analytics
since Jul 2021
CDN
cdnjs
since Nov 2021
Cloudflare
since May 2022
Amazon SES
since Jul 2025
Font scripts
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Operating systems
Ubuntu
since Jul 2021
PaaS
Amazon Web Services
since Jul 2025
Programming languages
TypeScript
since Nov 2024
Rich text editors
Security
HSTS
since Sep 2023
Tag managers
Google Tag Manager
since Jun 2023
UI frameworks
Bootstrap
since Jul 2021
Tailwind CSS
since Nov 2024
Web servers
Apache HTTP Server
since Jul 2021
Webmail
Google Workspace
since Aug 2022
Widgets
FullCalendar
since Aug 2026
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 checked
- ai.txt not checked
- Sep 2026 *: Allowed (was Blocked)
- Sep 2026 *: Blocked (was Allowed)
AI Crawlers
No AI crawlers blocked
Audience
- 73% desktop
- 27% phone
India
United Kingdom
United States
Türkiye
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.54 / 10 · ranked #848,404 of all domains
29 referring domains · OpenPageRank
Core Web Vitals
| LCP | 5.1 s |
| INP | 100 ms |
| CLS | 0.15 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- Weight: 3.8 MB · 73 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Hetzner (65.108.238.125)
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 1,936,711, 13 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| iet-book.rivervalley.io | 15 |
| ice-review.rivervalley.io | 14 |
| jist-jpi-review.rivervalley.io | 13 |
| intech-review.rivervalley.io | 12 |
| taskbot.rivervalley.io | 11 |
| jphil-review.rivervalley.io | 10 |
| rivervalley.io | 8 |