What powers testsys.com?
Last seen Sep 2026 · 38 technologies across 21 categories
Analytics
Google Analytics
since Jun 2016
CDN
cdnjs
since Sep 2024
Cloudflare
since Dec 2022
CMS
WordPress
since Dec 2023
CRM
Zoho
since Dec 2022
Databases
MySQL
since Dec 2023
Font scripts
Google Font API
since Jun 2016
Twitter Emoji (Twemoji)
since Dec 2025
JavaScript frameworks
JavaScript graphics
Chart.js
since Dec 2023
JavaScript libraries
Marketing automation
Constant Contact
since Dec 2022
Miscellaneous
PaaS
Amazon Web Services
since Dec 2022
WordPress.com
since Dec 2023
Page builders
WordPress Block Editor
since Dec 2025
Performance
Priority Hints
since Dec 2023
Programming languages
PHP
since Dec 2023
Security
UI frameworks
Video players
Vimeo
since Dec 2022
Web servers
Nginx
since Dec 2023
WordPress plugins
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 100% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.93 / 10 · ranked #3,769,929 of all domains
18 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Sep 2026.
Infrastructure
- Hosted on Rackspace (161.47.163.212)
- DNS: DNS Made Easy
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC quarantine
- SSL: DigiCert, RSA 2048, wildcard, expires Apr 2027
- Common Crawl link graph: rank 193,636, 4 hosts
- Verified with: Amazon SES
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| blog.testsys.com | 31 |
| testsys.com | 15 |
| www.testsys.com | 15 |