Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 209.160.71.47 |
| Server Software | Apache/2.2.15 (CentOS) |
|
ℹ 🔵 Missing HSTS | HTTP Strict Transport Security is not configured. Recommended for HTTPS sites. |
|
ℹ 🔵 Missing Content Security Policy | CSP is not configured. It helps prevent XSS attacks and content injection. |
|
ℹ 🔵 Missing X-Frame-Options | The site can be embedded in iframes by third parties (clickjacking risk). |
|
ℹ 🔵 No Compression | The server does not use Gzip or Brotli. Enable compression to reduce bandwidth usage. |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 209.160.71.47
Server Software Apache/2.2.15 (CentOS)
ℹ 🔵 Missing HSTS HTTP Strict Transport Security is not configured. Recommended for HTTPS sites.
ℹ 🔵 Missing Content Security Policy CSP is not configured. It helps prevent XSS attacks and content injection.
ℹ 🔵 Missing X-Frame-Options The site can be embedded in iframes by third parties (clickjacking risk).
ℹ 🔵 No Compression The server does not use Gzip or Brotli. Enable compression to reduce bandwidth usage.
Performance
| DNS Lookup | 4.1 ms |
| TCP Connect | 85.8 ms |
| TLS Handshake | 195.6 ms |
| Time To First Byte (TTFB) | 464.7 ms |
| Content Download | 206.8 ms |
| Total Response Time | 671.5 ms |
DNS Lookup 4.1 ms
TCP Connect 85.8 ms
TLS Handshake 195.6 ms
Time To First Byte (TTFB) 464.7 ms
Content Download 206.8 ms
Total Response Time 671.5 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✘ Not configured |
| CSP | ⚠ Not configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ⚠ Not configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✘ Not configured
CSP ⚠ Not configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ⚠ Not configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Online PDH Provider for Engineers Land Surveyors Architects PE CEU PLS CPC LS CPD PDU - Professional Development Hours and Continuing Education Units for AIA LU RA sponsor courses credits hour units self home study PDH free CEU license renewal CE design civil engineer structural mechanical electrical architectural engineering |
| Meta Description | Official PDH Online Website - PDHonline.com provides online (web-based) professional development
courses (PDH, hours units credits or PDHs) continuing education units (CEU CEUs) and learning units (LU LUs) for engineer (engineers PE P.E.) land surveyor (surveyors LS PLS) geologist (geologists PG) and architect (architects AIA A.I.A. RA) provider sponsor free engineering forum software technical publication or resource |
| Robots Meta | all |
Title Online PDH Provider for Engineers Land Surveyors Architects PE CEU PLS CPC LS CPD PDU - Professional Development Hours and Continuing Education Units for AIA LU RA sponsor courses credits hour units self home study PDH free CEU license renewal CE design civil engineer structural mechanical electrical architectural engineering
Meta Description Official PDH Online Website - PDHonline.com provides online (web-based) professional development
courses (PDH, hours units credits or PDHs) continuing education units (CEU CEUs) and learning units (LU LUs) for engineer (engineers PE P.E.) land surveyor (surveyors LS PLS) geologist (geologists PG) and architect (architects AIA A.I.A. RA) provider sponsor free engineering forum software technical publication or resource
Robots Meta all
Detected Technologies
| Technology | Google Analytics Cloudflare Apache PHP |
Technology Google Analytics Cloudflare Apache PHP
HTTP Headers
| Date
| Wed, 22 Jul 2026 11:55:03 GMT |
| Server
| Apache/2.2.15 (CentOS) |
| Connection
| close |
| Transfer-Encoding
| chunked |
| Content-Type
| text/html |
Meta Tags
| Description | Official PDH Online Website - PDHonline.com provides online (web-based) professional development
courses (PDH, hours units credits or PDHs) continuing education units (CEU CEUs) and learning units (LU LUs) for engineer (engineers PE P.E.) land surveyor (surveyors LS PLS) geologist (geologists PG) and architect (architects AIA A.I.A. RA) provider sponsor free engineering forum software technical publication or resource |
| Keywords | Official PDH Online Website - PDHonline PDHonline.com PDHonline.org provider sponsor web-based distant continuing independent self home study Internet instruction e-learning e-classroom free education
course courses PDH ePDH iPDH e-PDH i-PDH unit units hour hours credit credits CEU LU learning units CPC CPD
professional competency requirement requirements license licensed professionals renewal PE LS PLS AIA RA
CE design civil structural architectural engineer engineers engineering land surveyor surveyors geologist geologists architect architects software technical resource publication publications notes forum forums discussion group groups |
| Robots | all |
| Expires | 31 December 2026 18:00:00 EST |
| Content-type | text/html; charset=utf-8 |
Date Wed, 22 Jul 2026 11:55:03 GMT
Server Apache/2.2.15 (CentOS)
Connection close
Transfer-Encoding chunked
Content-Type text/html
