Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 199.16.172.204 |
| Server Software | nginx |
| CDN | CDN detected (Server-Timing) |
| Compression | gzip |
|
🔒 🟡 Mixed Content (8 HTTP resources) | The page is served over HTTPS but loads 8 resource(s) over HTTP. This may be blocked in modern browsers. |
|
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). |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 199.16.172.204
Server Software nginx
CDN CDN detected (Server-Timing)
Compression gzip
🔒 🟡 Mixed Content (8 HTTP resources) The page is served over HTTPS but loads 8 resource(s) over HTTP. This may be blocked in modern browsers.
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).
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://joelonsoftware.com:443 | 301 | HTTP/2 301 |
| 2 | https://www.joelonsoftware.com/ | 200 | HTTP/2 200 |
#1 URL https://joelonsoftware.com:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL https://www.joelonsoftware.com/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 13.9 ms |
| TCP Connect | 15.1 ms |
| TLS Handshake | 4.2 ms |
| Time To First Byte (TTFB) | 23.9 ms |
| Content Download | 0.6 ms |
| Total Response Time | 24.5 ms |
DNS Lookup 13.9 ms
TCP Connect 15.1 ms
TLS Handshake 4.2 ms
Time To First Byte (TTFB) 23.9 ms
Content Download 0.6 ms
Total Response Time 24.5 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=31536000 |
| CSP | ⚠ Not configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ⚠ Not configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=31536000
CSP ⚠ Not configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ⚠ Not configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Joel on Software |
| Meta Description | A weblog by Joel Spolsky, a programmer working in New York City, about software and software companies. |
| Robots Meta | max-image-preview:large |
| Open Graph Title | Joel on Software |
| Open Graph Description | A weblog by Joel Spolsky, a programmer working in New York City, about software and software companies. |
| Open Graph Image | https://i0.wp.com/www.joelonsoftware.com/wp-content/uploa... |
Title Joel on Software Meta Description A weblog by Joel Spolsky, a programmer working in New York City, about software and software companies. Robots Meta max-image-preview:large Open Graph Title Joel on Software Open Graph Description A weblog by Joel Spolsky, a programmer working in New York City, about software and software companies. Open Graph Image https://i0.wp.com/www.joelonsoftware.com/wp-content/uploa... Detected Technologies
| Technology | WordPress React Angular jQuery Google Analytics Cloudflare Nginx PHP |
Technology WordPress React Angular jQuery Google Analytics Cloudflare Nginx PHP
HTTP Headers
| Server
| nginx |
| Date
| Sat, 22 Aug 2026 01:18:14 GMT |
| Content-type
| text/html; charset=UTF-8 |
| Strict-transport-security
| max-age=31536000 |
| Vary
| accept, content-type, cookie |
| Last-modified
| Sat, 22 Aug 2026 00:45:57 GMT |
| Cache-control
| max-age=16, must-revalidate |
| X-nananana
| Batcache-Hit |
| Host-header
| wpcloud |
| Link
| ; rel=shortlink |
| Content-encoding
| gzip |
| X-ac
| 30.cdg _atomic_ams STALE |
| Alt-svc
| clear |
| Server-timing
| a8c-cdn, dc;desc=cdg, cache;desc=STALE;dur=3.0 |
Meta Tags
| Viewport | width=device-width, initial-scale=1 |
| Robots | max-image-preview:large |
| Description | A weblog by Joel Spolsky, a programmer working in New York City, about software and software companies. |
| Msapplication-TileImage |  |
Server nginx
Date Sat, 22 Aug 2026 01:18:14 GMT
Content-type text/html; charset=UTF-8
Strict-transport-security max-age=31536000
Vary accept, content-type, cookie
Last-modified Sat, 22 Aug 2026 00:45:57 GMT
Cache-control max-age=16, must-revalidate
X-nananana Batcache-Hit
Host-header wpcloud
Link ; rel=shortlink
Content-encoding gzip
X-ac 30.cdg _atomic_ams STALE
Alt-svc clear
Server-timing a8c-cdn, dc;desc=cdg, cache;desc=STALE;dur=3.0
