HTTP Headers Analysis for https://download.restlet.com

Detected Technologies from Headers

See all in URL Inspect 8

AWS CloudFront

Fastly

GitHub

Google Fonts

Sentry

Varnish

Vimeo

YouTube

HTTP Security Headers

Status

Strict-Transport-Security

Good

max-age=31536001; includeSubDomains

Content-Security-Policy

Strong

default-src; child-src; object-src; +6 more Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Excellent

DENY

X-Content-Type-Options

Good

nosniff

Referrer-Policy

Good

strict-origin-when-cross-origin

Permissions-Policy

Missing

Not configured

Recommendations

• Consider adding 'preload' to HSTS for maximum security
• Consider adding Permissions-Policy to control browser features

Performance Headers

Accept-Ranges

Performance

bytes

Connection

Performance

close

Vary

Performance

Accept-Encoding, Origin

accept-ranges: bytes
connection: close
vary: Accept-Encoding, Origin

Caching Headers

Age

Caching

509

Cache-Control

Caching

max-age=600

Etag

Caching

"69e09996-195d"

Expires

Caching

Tue, 28 Jul 2026 00:26:11 GMT

Last-Modified

Caching

Thu, 16 Apr 2026 08:11:02 GMT

age: 509
cache-control: max-age=600
etag: "69e09996-195d"
expires: Tue, 28 Jul 2026 00:26:11 GMT
last-modified: Thu, 16 Apr 2026 08:11:02 GMT

Content Headers

Content-Length

Content

6493

Content-Type

Content

text/html; charset=utf-8

content-length: 6493
content-type: text/html; charset=utf-8

Server Headers

Server

GitHub.com

server: GitHub.com

CORS Headers

No CORS headers found

Cookies Headers

No cookies headers found

Other Headers

Date

Other

Tue, 28 Jul 2026 12:15:16 GMT

Via

Other

1.1 varnish, 1.1 5043b84f34fb5bb6eac6e083162dc722.cloudfront.net (CloudFront)

X-Amz-Cf-Id

Other

nhMmtYX6IklNLsjIT88Gu4834gElgee71UCuKs6PLQCcpg3GOz32sQ==

X-Amz-Cf-Pop

Other

IAD55-P6

X-Cache

Other

Hit from cloudfront

X-Cache-Hits

Other

0

X-Fastly-Request-Id

Other

86b7d5c1fb2888f1969c81297432eab523c95e6d

X-Github-Request-Id

Other

2B24:14A33D:2A3B4E9:2D5CB8A:6A67F4CB

X-Proxy-Cache

Other

MISS

X-Served-By

Other

cache-iad-kcgs7200122-IAD

X-Timer

Other

S1785240916.256082,VS0,VE2

date: Tue, 28 Jul 2026 12:15:16 GMT
via: 1.1 varnish, 1.1 5043b84f34fb5bb6eac6e083162dc722.cloudfront.net (CloudFront)
x-amz-cf-id: nhMmtYX6IklNLsjIT88Gu4834gElgee71UCuKs6PLQCcpg3GOz32sQ==
x-amz-cf-pop: IAD55-P6
x-cache: Hit from cloudfront
x-cache-hits: 0
x-fastly-request-id: 86b7d5c1fb2888f1969c81297432eab523c95e6d
x-github-request-id: 2B24:14A33D:2A3B4E9:2D5CB8A:6A67F4CB
x-proxy-cache: MISS
x-served-by: cache-iad-kcgs7200122-IAD
x-timer: S1785240916.256082,VS0,VE2

Recommendations

Enable compression (gzip/brotli) to improve performance