What powers 
teachingworks.org?
Last seen Sep 2026 · 17 technologies across 12 categories
Analytics
Google Analytics
since May 2021
CMS
Databases
MySQL
since May 2021
Font scripts
Twitter Emoji (Twemoji)
since Jun 2021
Typekit
since May 2021
JavaScript libraries
Miscellaneous
Operating systems
Ubuntu
since May 2021
Programming languages
PHP
since May 2021
UI frameworks
Video players
Kaltura
since Jun 2022
Web servers
Widgets
Getsitecontrol
since Nov 2021
ShareThis
since May 2021
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 Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Oct 2026 *: Restricted (was Allowed)
- Sep 2026 *: Allowed (was Restricted)
- Sep 2026 *: Restricted (was Allowed)
- Aug 2026 *: Allowed (was Restricted)
- Aug 2026 *: Restricted (was Allowed)
AI Crawlers
No AI crawlers blocked
Audience
- 100% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.30 / 10 · ranked #434,865 of all domains
105 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Infrastructure
- Registered Jul 2011 (15 years) via Tucows Domains Inc., renews Jul 2027
- Hosted on Fastly (23.185.0.3, IPv6)
- DNS: umich.edu
- Email: umich.edu
- Email security: no SPF record, DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Jan 2027
- Common Crawl link graph: rank 491,338, 3 hosts
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| library.teachingworks.org | 14 |
| www.teachingworks.org | 7 |