What powers pressbooks.pub?
Last seen Sep 2026 · 28 technologies across 19 categories
Analytics
Caching
CDN
CMS
Databases
Font scripts
Issue trackers
JavaScript frameworks
JavaScript libraries
Load balancers
PaaS
Page builders
Performance
Programming languages
Security
Tag managers
UI frameworks
Video players
Web servers
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
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| apple of discord | #6 | 3,100 |
| tristan and iseult | #3 | 2,600 |
| 18th century | #3 | 2,600 |
| arabian peninsula location | #5 | 1,300 |
| arabian peninsula | #5 | 1,300 |
| pseudostratified columnar epithelium | #5 | 1,000 |
| kush african kingdom | #3 | 960 |
| sw asia | #6 | 920 |
| spanish civil war | #7 | 850 |
| map south east asia | #6 | 840 |
| eurasian steppe location | #3 | 790 |
| dragon with phoenix | #2 | 710 |
| golden lancehead pit viper | #3 | 640 |
| dense regular | #6 | 610 |
| aphorism examples | #2 | 540 |
| homer odysseus | #46 | 520 |
| southeast asia | #12 | 510 |
| cal memorial stadium | #6 | 500 |
| california memorial stadium | #6 | 500 |
| late middle ages | #2 | 470 |
| kush empire | #5 | 460 |
| stratified squamous epithelial tissue | #10 | 460 |
| socrative | #19 | 450 |
| ancient china | #8 | 440 |
| chinese for phoenix | #4 | 440 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
Policy unknown
Audience
- 83% desktop
- 15% phone
- 2% tablet
Canada
United States
Australia
Philippines
Mexico
South Africa
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
8.08 / 10 · ranked #6,161 of all domains
3,668 referring domains · OpenPageRank
Search traffic
115,000 est. monthly organic visits (US)
66,375 keywords in Google's top 30
Core Web Vitals
| LCP | 1.8 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 0.7 MB · 34 requests
- WordPress theme: pressbooks-aldine · all themes
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- University of Houston Libraries
- Founded: 1927
- Country: United States
From Wikidata (CC0).
Infrastructure
- Registered May 2015 (11 years) via Tucows Domains Inc., renews May 2027
- Hosted on Cloudflare (104.18.42.171)
- DNS: Amazon Route 53
- Email: no MX record returned
- SSL: Amazon Trust Services, RSA 2048, wildcard, expires Mar 2027
- Common Crawl link graph: rank 5,028, 185 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| pressbooks.pub | 18 |
| griffithuniversity.pressbooks.pub | 15 |
| ucincinnatipress.pressbooks.pub | 15 |
| asu.pressbooks.pub | 14 |
| fsw.pressbooks.pub | 14 |
| mlpp.pressbooks.pub | 14 |
| qut.pressbooks.pub | 14 |
| spscc.pressbooks.pub | 14 |
| torontopubliclibrary.pressbooks.pub | 14 |
| westernsydney.pressbooks.pub | 14 |
| avalanche.pressbooks.pub | 13 |
| bc3.pressbooks.pub | 13 |
| carletonu.pressbooks.pub | 13 |
| caul-cbua.pressbooks.pub | 13 |
| cduebooks.pressbooks.pub | 13 |
| colostate.pressbooks.pub | 13 |
| csi.pressbooks.pub | 13 |
| deakin.pressbooks.pub | 13 |
| ecampusontario.pressbooks.pub | 13 |
| iastate.pressbooks.pub | 13 |
| iu.pressbooks.pub | 13 |
| jcu.pressbooks.pub | 13 |
| librarypartnerspress.pressbooks.pub | 13 |
| lmu.pressbooks.pub | 13 |
Full technology history →
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Recent changes
- dropped HTTP/3 Aug 2026
- detected Linkedin Insight Tag Jul 2026
- detected YouTube Jul 2026
- dropped ServiceNow Apr 2026
- detected Cloudflare Jan 2026
- detected Cloudflare Browser Insights Jan 2026
- detected Cloudflare Rocket Loader Jan 2026
- detected HTTP/3 Jan 2026
- dropped Cloudflare Dec 2025
- dropped Cloudflare Bot Management Dec 2025
- dropped Linkedin Insight Tag Dec 2025