HTTP Headers Analysis for https://mysteryscience.com

Open Cached · just now

25 Headers

Detected Technologies from Headers

See all in URL Inspect 1

Heroku

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=63072000

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

Vary

Performance

Accept-Encoding

connection: close
vary: Accept-Encoding

Caching Headers

Cache-Control

Caching

max-age=0, private, must-revalidate

Etag

Caching

W/"bb8eee73a5cfd4f45f5c096789511c6e"

cache-control: max-age=0, private, must-revalidate
etag: W/"bb8eee73a5cfd4f45f5c096789511c6e"

Content Headers

Content-Length

Content

234191

Content-Type

Content

text/html; charset=utf-8

content-length: 234191
content-type: text/html; charset=utf-8

Server Headers

Server

Heroku

X-Runtime

Server

0.756336

server: Heroku
x-runtime: 0.756336

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

set-cookie: current_user_session_id=684039147; path=/; expires=Thu, 02 Apr 2026 06:19:26 GMT; SameSite=Lax; secure
rebrand=true; path=/; SameSite=Lax; secure
_m_session_id=rQ3MQQ4YqMm6BFqyX6exbEZer9LFLVU8wc8eF5D%2BabNDKV2H3peWOdJVisJGcyivfkoIVQpzZhs5YBgvU0uCPApxpKxLtuL0x2olOk7QZMbRlMIiYZkvdg2zCWcOyK7w5mKbkFRiTAg8uyOqINgxCnXezgzw0jIJ%2BJiz3PlJivd09DbRz7huVlyyHUydqrXCoOXW8YX6AfZqSO72KO8qKVeAosAL%2BCk98UQiYmOm44uz5lfIpxD%2FPzRGo1w2eye%2FfnQ%2F6pve5bnxZfIN2ml1qsTTZgaAAds7g5xl2HrQ2LOfipvSpcI93HPiNjlZKV4OWdrCbxAiGisCUxXYKMtuN9y8EJLSkabG38%2FKv3FcHg%3D%3D--Ti%2FKp9PtG4eyrosW--YDf7h2ta75h2bQCNwB5Qeg%3D%3D; domain=.mysteryscience.com; path=/; expires=Wed, 02 Apr 2036 02:19:27 GMT; secure; HttpOnly; SameSite=Lax

Other Headers

Date

Other

Thu, 02 Apr 2026 02:19:27 GMT

Link

Other

URL https://cloud.mysteryscience.com/raw/upload/assets/2021_brand-d38674d66ffb62ae74c96777df56c082fc7f81508ad9764b68bab7ede07c76ba.css

rel=preload as=style nopush

URL https://cloud.mysteryscience.com/raw/upload/assets/ivy-2398d397167a3168867910bcbb60ba108772f6c317cd891a64461419317c3dc8.css

rel=preload as=style nopush

URL https://cloud.mysteryscience.com/raw/upload/assets/ivy-1be07909948c4fe1db75581e510019f8a98e5723e6578adf77446f89f83f11d5.js

rel=preload as=script nopush

URL https://cloud.mysteryscience.com/raw/upload/assets/bugsnag-dfa83ef7e3c863e3ff28ea87d0884dfe315c11e3431d462f6b2922b5807fe769.js

rel=preload as=script nopush

Nel

Other

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

success: 1.0% failure: 10.0%

P3p

Other

CP="Please see https://mysteryscience.com/privacy"

Report-To

Other

Group heroku-nel max-age: 1h

Endpoint 1 https://nel.heroku.com/reports?s=NyCd3MeHDuejsZKA5Qdbihf13UE9pr9xZ3Mu2aogIGQ%3D&sid=c46efe9b-d3d2-4a0c-8c76-bfafa16c5add&ts=1775096366

Reporting-Endpoints

Other

heroku-nel="https://nel.heroku.com/reports?s=NyCd3MeHDuejsZKA5Qdbihf13UE9pr9xZ3Mu2aogIGQ%3D&sid=c46efe9b-d3d2-4a0c-8c76-bfafa16c5add&ts=1775096366"

Via

Other

1.1 heroku-router

X-Download-Options

Other

noopen

X-Permitted-Cross-Domain-Policies

Other

none

X-Rack-Cache

Other

miss

X-Request-Id

Other

025b9ee3-d4ec-b088-ae88-1c970bb4c11a

date: Thu, 02 Apr 2026 02:19:27 GMT
link: <https://cloud.mysteryscience.com/raw/upload/assets/2021_brand-d38674d66ffb62ae74c96777df56c082fc7f81508ad9764b68bab7ede07c76ba.css>; rel=preload; as=style; nopush,<https://cloud.mysteryscience.com/raw/upload/assets/ivy-2398d397167a3168867910bcbb60ba108772f6c317cd891a64461419317c3dc8.css>; rel=preload; as=style; nopush,<https://cloud.mysteryscience.com/raw/upload/assets/ivy-1be07909948c4fe1db75581e510019f8a98e5723e6578adf77446f89f83f11d5.js>; rel=preload; as=script; nopush,<https://cloud.mysteryscience.com/raw/upload/assets/bugsnag-dfa83ef7e3c863e3ff28ea87d0884dfe315c11e3431d462f6b2922b5807fe769.js>; rel=preload; as=script; nopush,<https://cloud.mysteryscience.com/raw/upload/assets/2021_brand-d38674d66ffb62ae74c96777df56c082fc7f81508ad9764b68bab7ede07c76ba.css>; rel=preload; as=style; nopush,<https://cloud.mysteryscience.com/raw/upload/assets/mystery-a46d899c5795da61dbae8b2079ecfb47a7f9710a61e55e78acfe3a17ffe6c1bf.js>; rel=preload; as=script; nopush
nel: {"report_to":"heroku-nel","response_headers":["Via"],"max_age":3600,"success_fraction":0.01,"failure_fraction":0.1}
p3p: CP="Please see https://mysteryscience.com/privacy"
report-to: {"group":"heroku-nel","endpoints":[{"url":"https://nel.heroku.com/reports?s=NyCd3MeHDuejsZKA5Qdbihf13UE9pr9xZ3Mu2aogIGQ%3D\u0026sid=c46efe9b-d3d2-4a0c-8c76-bfafa16c5add\u0026ts=1775096366"}],"max_age":3600}
reporting-endpoints: heroku-nel="https://nel.heroku.com/reports?s=NyCd3MeHDuejsZKA5Qdbihf13UE9pr9xZ3Mu2aogIGQ%3D&sid=c46efe9b-d3d2-4a0c-8c76-bfafa16c5add&ts=1775096366"
via: 1.1 heroku-router
x-download-options: noopen
x-permitted-cross-domain-policies: none
x-rack-cache: miss
x-request-id: 025b9ee3-d4ec-b088-ae88-1c970bb4c11a

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Enable compression (gzip/brotli) to improve performance