What powers classcalc.com?
Last seen Jun 2026 · 25 technologies across 15 categories
Analytics
Google Analytics
since Mar 2020
Microsoft Clarity
since Sep 2023
Appointment scheduling
Calendly
since Nov 2022
CMS
CRM
Zoho
since Nov 2022
Databases
MySQL
since Mar 2020
Google Workspace
since Nov 2022
Zoho Mail
since Nov 2022
Font scripts
Google Font API
since Mar 2020
Twitter Emoji (Twemoji)
since Mar 2020
JavaScript libraries
Swiper
since Nov 2022
Miscellaneous
Open Graph
since Nov 2022
RSS
since Dec 2022
Performance
Priority Hints
since Dec 2023
Programming languages
PHP
since Mar 2020
Security
HSTS
since Nov 2022
Web servers
WordPress plugins
WordPress themes
Audience
- 100% desktop
Israel
United Kingdom
Australia
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.62 / 10 · ranked #2,282,906 of all domains
15 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.8 s |
| INP | 150 ms |
| CLS | 0 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Jun 2026.