Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 104.21.21.161 |
| Server Software | cloudflare |
| CDN | Cloudflare |
| Compression | gzip |
|
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 104.21.21.161
Server Software cloudflare
CDN Cloudflare
Compression gzip
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).
Performance
| DNS Lookup | 50.1 ms |
| TCP Connect | 52 ms |
| TLS Handshake | 6.8 ms |
| Time To First Byte (TTFB) | 95.3 ms |
| Content Download | 4 ms |
| Total Response Time | 99.3 ms |
DNS Lookup 50.1 ms
TCP Connect 52 ms
TLS Handshake 6.8 ms
Time To First Byte (TTFB) 95.3 ms
Content Download 4 ms
Total Response Time 99.3 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 | Homepage - Jeffrey Zeldman Presents |
| Canonical | https://zeldman.com/ |
| Robots Meta | index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1 |
| Open Graph Title | Homepage - Jeffrey Zeldman Presents |
| Open Graph Description | - Jeffrey Zeldman Presents |
| Open Graph Image | https://zeldman.com/wp-content/uploads/zeldman.webp |
| Twitter Card | summary_large_image |
Title Homepage - Jeffrey Zeldman Presents Canonical https://zeldman.com/ Robots Meta index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1 Open Graph Title Homepage - Jeffrey Zeldman Presents Open Graph Description - Jeffrey Zeldman Presents Open Graph Image https://zeldman.com/wp-content/uploads/zeldman.webp Twitter Card summary_large_image Detected Technologies
| Technology | WordPress WooCommerce Google Analytics Google Tag Manager Cloudflare PHP |
Technology WordPress WooCommerce Google Analytics Google Tag Manager Cloudflare PHP
HTTP Headers
| Date
| Thu, 23 Jul 2026 14:44:33 GMT |
| Content-type
| text/html; charset=UTF-8 |
| Server
| cloudflare |
| Strict-transport-security
| max-age=31536000 |
| Vary
| accept, content-type, cookie |
| X-hacker
| Want root? Visit join.a8c.com and mention this header. |
| Host-header
| WordPress.com |
| X-pingback
| https://zeldman.com/xmlrpc.php |
| Link
| ; rel=shortlink |
| Last-modified
| Thu, 23 Jul 2026 14:25:55 GMT |
| Cache-control
| max-age=300, must-revalidate |
| X-nananana
| Batcache-Set |
| Report-to
| {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=aHouHrnJbg%2BOd0or1LKQXgLjZxXCh0IPxXJmajQ8e57c2F8D3jMUoD0wsZtvojfcvH8JVIzhAF%2FQnju6YHSXUZEKPVFuFPJX99aomfJlkuiZ7ATIV%2BLTTpO8jLx%2FAA%3D%3D"}]} |
| X-ac
| 36.cdg _atomic_ams STALE |
| Alt-svc
| h3=":443"; ma=86400 |
| Server-timing
| a8c-cdn, dc;desc=cdg, cache;desc=STALE;dur=1.0 |
| Cf-cache-status
| DYNAMIC |
| Nel
| {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800} |
| Content-encoding
| gzip |
| Cf-ray
| a1fb76c04b8dd0b3-CDG |
Meta Tags
| Viewport | width=device-width, initial-scale=1 |
| Robots | index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1 |
| Article:publisher | https://www.facebook.com/jzeldman |
| Article:modified_time | 2026-06-02T14:46:25+00:00 |
| Generator | Site Kit by Google 1.183.0 |
| Fediverse:creator | sonia@zeldman.com |
| Msapplication-TileImage |  |
Date Thu, 23 Jul 2026 14:44:33 GMT
Content-type text/html; charset=UTF-8
Server cloudflare
Strict-transport-security max-age=31536000
Vary accept, content-type, cookie
X-hacker Want root? Visit join.a8c.com and mention this header.
Host-header WordPress.com
X-pingback https://zeldman.com/xmlrpc.php
Link ; rel=shortlink
Last-modified Thu, 23 Jul 2026 14:25:55 GMT
Cache-control max-age=300, must-revalidate
X-nananana Batcache-Set
Report-to {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=aHouHrnJbg%2BOd0or1LKQXgLjZxXCh0IPxXJmajQ8e57c2F8D3jMUoD0wsZtvojfcvH8JVIzhAF%2FQnju6YHSXUZEKPVFuFPJX99aomfJlkuiZ7ATIV%2BLTTpO8jLx%2FAA%3D%3D"}]}
X-ac 36.cdg _atomic_ams STALE
Alt-svc h3=":443"; ma=86400
Server-timing a8c-cdn, dc;desc=cdg, cache;desc=STALE;dur=1.0
Cf-cache-status DYNAMIC
Nel {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
Content-encoding gzip
Cf-ray a1fb76c04b8dd0b3-CDG
