HTTP Headers Analysis for https://support.ably.io

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24 Headers

Detected Technologies from Headers

See all in URL Inspect 3

Ably

Cloudflare CDN

Heroku

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=15552000; preload

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

Good

strict-origin-when-cross-origin

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
• Consider adding Permissions-Policy to control browser features

Performance Headers

Connection

Performance

Transfer-Encoding

Performance

chunked

Vary

Performance

Origin,Accept-Encoding

connection: close
transfer-encoding: chunked
vary: Origin,Accept-Encoding

Caching Headers

Cache-Control

Caching

max-age=0, private, must-revalidate

cache-control: max-age=0, private, must-revalidate

Content Headers

Content-Type

Content

text/html; charset=utf-8

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

Server Headers

Server

cloudflare

X-Runtime

Server

0.032279

server: cloudflare
x-runtime: 0.032279

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

set-cookie: cookie_test=ping; path=/; SameSite=Lax; secure
ably_device_id=5TGxY7HT5pBeGump79wvCW2AkJtddFIZ24%2BacfWDSMYNNGFHQi9TFzPp8RMD9hYjt6lJUaq421mv2Yv%2Bmu1bY1wGJHSHZFLuMOjv9Lt1oyvJoiYDFwnA23UP7fW819%2BAMQLwdD%2B1YPRY6jAc3RCUJ2TtGxqkNM%2FcC6o9uDNDFmeguFcwYhtIjUELOLo%3D--00AyWPcFGS0h0c5v--wbNMo2o15HT70ijPcDOEcA%3D%3D; path=/; expires=Fri, 30 Apr 2027 20:54:25 GMT; HttpOnly; SameSite=Lax; secure
_ably_session=d690GCyfWZM0uEGfIeKcMoYxIQNwV66Ci%2BxAKjxLTsNZTF9mp9Dr42Zw5JlznF%2BpOknBVGA4PUMcuOp4sQuxZEoWajcRUvEVde2iIB%2BzjLnlOIyUCPOdbjYbvdiui6G4S6P1treoHDmA78SwIOBpmDxfUthPEX8EyXXLRyyzYbaKgy3UfAZNO%2FW227FM11E3Bk%2FyldR13LMgeuu3KVGGe1xpPQ3TET55zZaYTikRSk%2FR8OXjfM8ukPJNSML4HEwReFrZb5C1H8bEmu3azVR0%2Bqy7XErz1T1xXvSzmPiivmHBoCJHOk6qnU2CedQhsaVBZYqj84SWVxRwnZHoO471QPSVaS8xOKA%3D--vBcsJERkzEoidK%2Bz--xEHfiUI3PilbZpLIz%2B86tQ%3D%3D; path=/; expires=Thu, 30 Apr 2026 22:54:25 GMT; secure; HttpOnly; SameSite=Lax

Other Headers

Cf-Cache-Status

Other

BYPASS

Cf-Ray

Other

9f49710b58ac0825-IAD

Date

Other

Thu, 30 Apr 2026 20:54:25 GMT

Link

Other

URL

/vite/assets/application-CG3wrscx.css

rel=preload as=style nopush

URL

/vite/assets/ably-ui-BYAzj97Y.css

rel=preload as=style nopush

URL

/vite/assets/compatibility-layer-d58-9yyH.css

rel=preload as=style nopush

URL

/assets/password_strength-da10b5bea28eb20d1fc76633b31c54313456b52b3d56ee8445f9e1393879d182.js

rel=preload as=script nopush

URL

/vite/assets/application-CG3wrscx.css

rel=preload as=style nopush

URL

/vite/assets/ably-ui-BYAzj97Y.css

rel=preload as=style nopush

URL

/vite/assets/compatibility-layer-d58-9yyH.css

rel=preload as=style nopush

URL

/assets/password_strength-da10b5bea28eb20d1fc76633b31c54313456b52b3d56ee8445f9e1393879d182.js

rel=preload as=script nopush

URL

/vite/assets/application-D7lQD2TK.js

rel=modulepreload as=script crossorigin nopush

URL

/vite/assets/ably-ui-BKPsR91K.js

rel=modulepreload as=script crossorigin nopush

URL

/vite/assets/support-CcDGGNj9.js

rel=modulepreload as=script crossorigin nopush

URL

/vite/assets/application-FxUwaif5.css

rel=preload as=style crossorigin nopush

URL

/vite/assets/pricing-eznDdpsm.css

rel=preload as=style crossorigin nopush

URL

/vite/assets/component-B0tF0QuM.css

rel=preload as=style crossorigin nopush

Nel

Other

Report-To Group heroku-nel max-age: 1h

success: 1.0% failure: 10.0%

Report-To

Other

Group heroku-nel max-age: 1h

Endpoint 1 https://nel.heroku.com/reports?s=yGkjsqaDfo6DXV1nb%2FlxQ7mhG0%2FsZqlgWdn14%2BOSLII%3D&sid=c46efe9b-d3d2-4a0c-8c76-bfafa16c5add&ts=1777582465

Reporting-Endpoints

Other

heroku-nel="https://nel.heroku.com/reports?s=yGkjsqaDfo6DXV1nb%2FlxQ7mhG0%2FsZqlgWdn14%2BOSLII%3D&sid=c46efe9b-d3d2-4a0c-8c76-bfafa16c5add&ts=1777582465"

Via

Other

2.0 heroku-router

X-Download-Options

Other

noopen

X-Permitted-Cross-Domain-Policies

Other

none

X-Request-Id

Other

983bb4f4-2828-1184-aa1b-8c01916efed8

cf-cache-status: BYPASS
cf-ray: 9f49710b58ac0825-IAD
date: Thu, 30 Apr 2026 20:54:25 GMT
link: </vite/assets/application-CG3wrscx.css>; rel=preload; as=style; nopush,</vite/assets/ably-ui-BYAzj97Y.css>; rel=preload; as=style; nopush,</vite/assets/compatibility-layer-d58-9yyH.css>; rel=preload; as=style; nopush,</assets/password_strength-da10b5bea28eb20d1fc76633b31c54313456b52b3d56ee8445f9e1393879d182.js>; rel=preload; as=script; nopush,</vite/assets/application-D7lQD2TK.js>; rel=modulepreload; as=script; crossorigin=; nopush,</vite/assets/ably-ui-BKPsR91K.js>; rel=modulepreload; as=script; crossorigin=; nopush,</vite/assets/support-CcDGGNj9.js>; rel=modulepreload; as=script; crossorigin=; nopush,</vite/assets/application-FxUwaif5.css>; rel=preload; as=style; crossorigin=; nopush,</vite/assets/pricing-eznDdpsm.css>; rel=preload; as=style; crossorigin=; nopush,</vite/assets/component-B0tF0QuM.css>; rel=preload; as=style; crossorigin=; nopush
nel: {"report_to":"heroku-nel","response_headers":["Via"],"max_age":3600,"success_fraction":0.01,"failure_fraction":0.1}
report-to: {"group":"heroku-nel","endpoints":[{"url":"https://nel.heroku.com/reports?s=yGkjsqaDfo6DXV1nb%2FlxQ7mhG0%2FsZqlgWdn14%2BOSLII%3D\u0026sid=c46efe9b-d3d2-4a0c-8c76-bfafa16c5add\u0026ts=1777582465"}],"max_age":3600}
reporting-endpoints: heroku-nel="https://nel.heroku.com/reports?s=yGkjsqaDfo6DXV1nb%2FlxQ7mhG0%2FsZqlgWdn14%2BOSLII%3D&sid=c46efe9b-d3d2-4a0c-8c76-bfafa16c5add&ts=1777582465"
via: 2.0 heroku-router
x-download-options: noopen
x-permitted-cross-domain-policies: none
x-request-id: 983bb4f4-2828-1184-aa1b-8c01916efed8

Recommendations

Enable compression (gzip/brotli) to improve performance