What powers potsdamlibrary.org?
Last seen Aug 2026 · 26 technologies across 18 categories
Analytics
Google Analytics
since Oct 2021
CDN
Cloudflare
since Oct 2024
CMS
Databases
MySQL
since Oct 2021
Constant Contact
since Oct 2021
Font scripts
Google Font API
since Apr 2019
Twitter Emoji (Twemoji)
since Oct 2021
JavaScript libraries
Operating Systems
CentOS
since Apr 2019
PaaS
SiteGround
since Aug 2022
Page builders
WordPress Block Editor
since Jul 2024
Payment processors
PayPal
since Apr 2019
Performance
Priority Hints
since Aug 2023
Programming languages
PHP
since Apr 2019
Security
Cloudflare Bot Management
since Oct 2024
reCAPTCHA
since Apr 2019
Web Servers
Nginx
since Oct 2021
Webmail
Google Workspace
since Aug 2022
WordPress plugins
The Events Calendar
since Aug 2022
WordPress themes
AI Crawlers
robots.txt could not be read at the last check (Aug 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.83 / 10 · ranked #4,195,964 of all domains
15 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- CDN: Google
- Weight: 1.5 MB · 55 requests
- WordPress theme: astra · all themes
- Structured data: Microdata
Homepage as crawled by the HTTP Archive, Sep 2026.
Subdomains
| Host | Techs |
|---|---|
| potsdamlibrary.org | 23 |
| www.potsdamlibrary.org | 8 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Cloudflare Mar 2026
- detected Cloudflare Bot Management Mar 2026
- detected Constant Contact Mar 2026
- dropped Cloudflare Feb 2026
- dropped Cloudflare Bot Management Feb 2026
- dropped Constant Contact Feb 2026
- dropped Slick Feb 2026
- dropped Twenty Seventeen Feb 2026
- detected Astra Jan 2026
- detected Twitter Emoji (Twemoji) Dec 2025