What powers teachbig.com?
Last seen Sep 2026 · 30 technologies across 16 categories
CDN
CMS
WordPress
since Jun 2021
Databases
MySQL
since Jun 2021
Font scripts
Google Font API
since Jun 2021
Twitter Emoji (Twemoji)
since Jul 2021
JavaScript frameworks
JavaScript graphics
ApexCharts.js
since Sep 2026
JavaScript libraries
Select2
since Sep 2026
SweetAlert
since Sep 2026
LMS
Miscellaneous
RSS
since Dec 2022
Performance
Priority Hints
since Jul 2025
Photo galleries
PhotoSwipe
since Jul 2026
Programming languages
PHP
since Jun 2021
Web servers
Nginx
since Jun 2021
Webmail
Microsoft 365
since Aug 2022
WordPress plugins
WordPress themes
AI Crawlers
robots.txt could not be read at the last check (Oct 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 100% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.85 / 10 · ranked #15,348,549 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.1 s |
| CLS | 0 |
| TTFB | 1700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Infrastructure
- Hosted on Amazon Web Services (76.76.21.21)
- DNS: microsoftonline.com
- Email: Microsoft 365
- Email security: SPF (hard fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 10,513,355, 2 hosts
- Verified with: Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- detected ApexCharts.js Sep 2026
- detected cdnjs Sep 2026
- detected Cloudflare Sep 2026
- detected Emotion Sep 2026
- detected Font Awesome Sep 2026
- detected Google Hosted Libraries Sep 2026
- detected LearnDash Sep 2026
- detected Moment.js Sep 2026
- detected React Sep 2026
- detected Select2 Sep 2026
- detected SweetAlert Sep 2026
- dropped Bootstrap Aug 2026
- dropped Cart Functionality Aug 2026
- dropped Contact Form 7 Aug 2026
- dropped Font Awesome Aug 2026
- dropped Genesis theme Aug 2026
- dropped Ionicons Aug 2026
- dropped Isotope Aug 2026
- dropped MailChimp Aug 2026
- dropped MailChimp for WordPress Aug 2026
- dropped MetaSlider Aug 2026
- dropped OWL Carousel Aug 2026
- dropped Smash Balloon Instagram Feed Aug 2026
- dropped TablePress Aug 2026
- dropped WordPress Block Editor Aug 2026
- dropped SiteGround May 2026