HTTP Headers Analysis for https://www.twilio.works

Detected Technologies from Headers

See all in URL Inspect 1

AWS CloudFront

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=31557600

Content-Security-Policy

Missing

Not configured Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Good

SAMEORIGIN

X-Content-Type-Options

Good

nosniff

Referrer-Policy

Missing

Not configured

Permissions-Policy

Missing

Not configured

Recommendations

• Increase HSTS max-age to at least 1 year and add includeSubDomains
• Add Content-Security-Policy header to prevent XSS attacks
• 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

Vary

Performance

Accept-Encoding

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

Caching Headers

Age

Caching

387

Cache-Control

Caching

max-age=600,stale-while-revalidate=30,stale-if-error=7200

Etag

Caching

"aa5f3-6571bd579c6a0"

Expires

Caching

Tue, 21 Jul 2026 10:15:03 GMT

Last-Modified

Caching

Tue, 21 Jul 2026 09:41:57 GMT

age: 387
cache-control: max-age=600,stale-while-revalidate=30,stale-if-error=7200
etag: "aa5f3-6571bd579c6a0"
expires: Tue, 21 Jul 2026 10:15:03 GMT
last-modified: Tue, 21 Jul 2026 09:41:57 GMT

Content Headers

Content-Length

Content

697843

Content-Type

Content

text/html;charset=utf-8

content-length: 697843
content-type: text/html;charset=utf-8

Server Headers

No server headers found

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

Cookies

set-cookie: affinity="a740453df4deabe6"; Path=/; HttpOnly; secure

Other Headers

Date

Other

Tue, 21 Jul 2026 10:10:03 GMT

Via

Other

1.1 312cc2b2351d4d9512783521cd4a9fcc.cloudfront.net (CloudFront)

X-Amz-Cf-Id

Other

DMA3CMdICc3zusDWxLUP4jEgsl1UJk0gmd7DE0AwxDU7P46FKDgQeQ==

X-Amz-Cf-Pop

Other

IAD55-P10

X-Cache

Other

Hit from cloudfront

X-Served-By

Other

cache-iad-kcgs7200148-IAD

X-Timer

Other

S1784628603.209357,VS0,VS0,VE68

X-Vhost

Other

twilio-com

date: Tue, 21 Jul 2026 10:10:03 GMT
via: 1.1 312cc2b2351d4d9512783521cd4a9fcc.cloudfront.net (CloudFront)
x-amz-cf-id: DMA3CMdICc3zusDWxLUP4jEgsl1UJk0gmd7DE0AwxDU7P46FKDgQeQ==
x-amz-cf-pop: IAD55-P10
x-cache: Hit from cloudfront
x-served-by: cache-iad-kcgs7200148-IAD
x-timer: S1784628603.209357,VS0,VS0,VE68
x-vhost: twilio-com

Recommendations

Enable compression (gzip/brotli) to improve performance