HTTP Headers Analysis for https://cdn.dhtmlx.com

Detected Technologies from Headers

See all in URL Inspect 3

AWS CloudFront

Nginx

Ubuntu

HTTP Security Headers

Status

Strict-Transport-Security

Missing

Not configured

Content-Security-Policy

Missing

Not configured Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Missing

Not configured

X-Content-Type-Options

Missing

Not configured

Referrer-Policy

Missing

Not configured

Permissions-Policy

Missing

Not configured

Recommendations

• Add Strict-Transport-Security header with max-age of at least 1 year
• Add Content-Security-Policy header to prevent XSS attacks
• Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
• Add X-Content-Type-Options: nosniff
• Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
• Consider adding Permissions-Policy to control browser features

Performance Headers

Accept-Ranges

Performance

bytes

Connection

Performance

close

accept-ranges: bytes
connection: close

Caching Headers

Age

Caching

274110

Cache-Control

Caching

max-age=604800

Etag

Caching

"5b50f701-0"

Expires

Caching

Fri, 15 May 2026 06:10:21 GMT

Last-Modified

Caching

Thu, 19 Jul 2018 20:39:29 GMT

age: 274110
cache-control: max-age=604800
etag: "5b50f701-0"
expires: Fri, 15 May 2026 06:10:21 GMT
last-modified: Thu, 19 Jul 2018 20:39:29 GMT

Content Headers

Content-Length

Content

0

Content-Type

Content

text/html

content-length: 0
content-type: text/html

Server Headers

Server

nginx/1.10.3 (Ubuntu)

server: nginx/1.10.3 (Ubuntu)

CORS Headers

Access-Control-Allow-Headers

Cors

*

Access-Control-Allow-Methods

Cors

GET, OPTIONS

Access-Control-Allow-Origin

Cors

*

access-control-allow-headers: *
access-control-allow-methods: GET, OPTIONS
access-control-allow-origin: *

Cookies Headers

No cookies headers found

Other Headers

Date

Other

Fri, 08 May 2026 06:10:21 GMT

Via

Other

1.1 f9ffa60c9d8e866d90f2c98c19adc4f4.cloudfront.net (CloudFront)

X-Amz-Cf-Id

Other

U3uD-urEUNVPijh7RJOYlvN2R73AQ6xCl8gegMq7KN2owVv6l_64RQ==

X-Amz-Cf-Pop

Other

IAD55-P5

X-Cache

Other

Hit from cloudfront

date: Fri, 08 May 2026 06:10:21 GMT
via: 1.1 f9ffa60c9d8e866d90f2c98c19adc4f4.cloudfront.net (CloudFront)
x-amz-cf-id: U3uD-urEUNVPijh7RJOYlvN2R73AQ6xCl8gegMq7KN2owVv6l_64RQ==
x-amz-cf-pop: IAD55-P5
x-cache: Hit from cloudfront

Recommendations

Enable compression (gzip/brotli) to improve performance