What powers 
ptt.edu?
Last seen Aug 2026 · 31 technologies across 22 categories
Advertising
Analytics
Caching
CMS
CRM
Databases
Font scripts
JavaScript Graphics
JavaScript Libraries
Marketing automation
Miscellaneous
Performance
Programming languages
Security
SEO
Tag managers
UI frameworks
Video Players
Web server extensions
Web servers
WordPress plugins
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 51% desktop
- 49% phone
United States
India
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #348,076 of all domains
113 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.8 s |
| INP | 75 ms |
| CLS | 0.05 |
| TTFB | 2100 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- Weight: 5.6 MB · 73 requests
- WordPress theme: ptti · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Philadelphia Technician Training Institute, PA - Trade School
- Industry: Education (declares
EducationalOrganization) - Profiles: Facebook, X, Instagram, LinkedIn, YouTube
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on AS-HOSTUPON (192.81.168.65)
- DNS: ptt.edu
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC reject
- SSL: Let's Encrypt, RSA 2048, wildcard, expires Nov 2026
- Common Crawl link graph: rank 7,695,017, 2 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| ptt.edu | 25 |
| www.ptt.edu | 17 |
Full technology history →
Report an incorrect detection
Recent changes
- detected core-js Jul 2026
- detected Font Awesome Jul 2026
- detected Microsoft Advertising Jul 2026
- detected Microsoft Clarity Jul 2026
- detected Pinterest Conversion Tag Jul 2026
- detected Sendinblue Jul 2026
- dropped Font Awesome Jun 2026
- detected Font Awesome Apr 2026