Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 100.50.107.202 |
| Server Software | nginx |
| CDN | CDN (Miss from cloudfront) |
| 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 100.50.107.202
Server Software nginx
CDN CDN (Miss from cloudfront)
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).
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://hmhbooks.com:443 | 301 | HTTP/2 301 |
| 2 | https://www.hmhco.com/ | 200 | HTTP/2 200 |
#1 URL https://hmhbooks.com:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL https://www.hmhco.com/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 29.7 ms |
| TCP Connect | 39.1 ms |
| TLS Handshake | 16.5 ms |
| Time To First Byte (TTFB) | 338.8 ms |
| Content Download | 14.4 ms |
| Total Response Time | 353.2 ms |
DNS Lookup 29.7 ms
TCP Connect 39.1 ms
TLS Handshake 16.5 ms
Time To First Byte (TTFB) 338.8 ms
Content Download 14.4 ms
Total Response Time 353.2 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=15768000; preload |
| CSP | ⚠ Not configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ⚠ Not configured |
| Permissions Policy | ✔ Configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=15768000; preload
CSP ⚠ Not configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ⚠ Not configured
Permissions Policy ✔ Configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | HMH: K-12 Learning Company |
| Meta Description | A K–12 learning company, HMH delivers integrated curriculum, assessment, and professional learning to help educators create growth for every student. |
| Canonical | https://www.hmhco.com/ |
| Robots Meta | index, follow |
| Open Graph Title | HMH: K-12 Learning Company |
| Open Graph Description | A K–12 learning company, HMH delivers integrated curriculum, assessment, and professional learning to help educators create growth for every student. |
| Open Graph Image | https://www.hmhco.com/default-seo-image.png |
| Twitter Card | summary_large_image |
| Twitter Title | HMH: K-12 Learning Company |
| Twitter Image | https://www.hmhco.com/default-seo-image.png |
Title HMH: K-12 Learning Company Meta Description A K–12 learning company, HMH delivers integrated curriculum, assessment, and professional learning to help educators create growth for every student. Canonical https://www.hmhco.com/ Robots Meta index, follow Open Graph Title HMH: K-12 Learning Company Open Graph Description A K–12 learning company, HMH delivers integrated curriculum, assessment, and professional learning to help educators create growth for every student. Open Graph Image https://www.hmhco.com/default-seo-image.png Twitter Card summary_large_image Twitter Title HMH: K-12 Learning Company Twitter Image https://www.hmhco.com/default-seo-image.png Detected Technologies
| Technology | Google Analytics Google Tag Manager Nginx Node.js |
Technology Google Analytics Google Tag Manager Nginx Node.js
HTTP Headers
| Content-type
| text/html; charset=utf-8 |
| Date
| Wed, 19 Aug 2026 23:28:01 GMT |
| Server
| nginx |
| Etag
| W/"7cd87-QuzvL1Bu6/xGOBq7zlZC50LK0xI" |
| Strict-transport-security
| max-age=15768000; preload |
| X-xss-protection
| 1; mode=block |
| Permissions-policy
| browsing-topics=() |
| Content-encoding
| gzip |
| Cache-control
| max-age=0 |
| Expires
| Wed, 19 Aug 2026 23:28:01 GMT |
| Vary
| Accept-Encoding |
| Via
| 1.1 1b07bab32e93e81199e0f74a9ca61e6a.cloudfront.net (CloudFront) |
| Set-cookie
| incap_ses_431_2120499=iBjkK/f5szLJ4Fmlfzj7BQE8hmoAAAAA1JBjZ2rtbac0BaxjXf9jtA==; path=/; Domain=.hmhco.com |
| X-cache
| Miss from cloudfront |
| X-amz-cf-pop
| ZRH52-P1 |
| X-amz-cf-id
| llZSH3batY5Aizk-m5il0RkYVqr8Q4ubIGAgEr3hzdHTjkAiAZ1YeQ== |
| X-iinfo
| 3-5045686-5045689 NNNN CT(1 4 0) RT(1787182081159 20) q(0 0 1 0) r(3 3) U24 |
Meta Tags
| X-ua-compatible | ie=edge |
| Viewport | width=device-width,initial-scale=1 |
| Skype_toolbar | skype_toolbar_parser_compatible |
| Format-detection | telephone=yes |
| Description | A K–12 learning company, HMH delivers integrated curriculum, assessment, and professional learning to help educators create growth for every student. |
| Robots | index, follow |
Content-type text/html; charset=utf-8
Date Wed, 19 Aug 2026 23:28:01 GMT
Server nginx
Etag W/"7cd87-QuzvL1Bu6/xGOBq7zlZC50LK0xI"
Strict-transport-security max-age=15768000; preload
X-xss-protection 1; mode=block
Permissions-policy browsing-topics=()
Content-encoding gzip
Cache-control max-age=0
Expires Wed, 19 Aug 2026 23:28:01 GMT
Vary Accept-Encoding
Via 1.1 1b07bab32e93e81199e0f74a9ca61e6a.cloudfront.net (CloudFront)
Set-cookie incap_ses_431_2120499=iBjkK/f5szLJ4Fmlfzj7BQE8hmoAAAAA1JBjZ2rtbac0BaxjXf9jtA==; path=/; Domain=.hmhco.com
X-cache Miss from cloudfront
X-amz-cf-pop ZRH52-P1
X-amz-cf-id llZSH3batY5Aizk-m5il0RkYVqr8Q4ubIGAgEr3hzdHTjkAiAZ1YeQ==
X-iinfo 3-5045686-5045689 NNNN CT(1 4 0) RT(1787182081159 20) q(0 0 1 0) r(3 3) U24
