HTTP Headers Analysis for https://otus.com

Open Cached · just now

26 Headers

Detected Technologies from Headers

See all in URL Inspect 4

Cloudflare NEL Monitoring

Cloudflare CDN

Google Fonts

unpkg

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=31536000

Content-Security-Policy

Weak

upgrade-insecure-requests 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

Good

no-referrer-when-downgrade

Permissions-Policy

Missing

Not configured

Recommendations

• Increase HSTS max-age to at least 1 year and add includeSubDomains
• Significantly strengthen CSP directives
• Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
• Add X-Content-Type-Options: nosniff
• Consider adding Permissions-Policy to control browser features

Performance Headers

Connection

Performance

Transfer-Encoding

Performance

chunked

Vary

Performance

accept-encoding

connection: close
transfer-encoding: chunked
vary: accept-encoding

Caching Headers

Cache-Control

Caching

s-maxage=36000, max-age=5

Last-Modified

Caching

Tue, 28 Apr 2026 04:56:33 GMT

cache-control: s-maxage=36000, max-age=5
last-modified: Tue, 28 Apr 2026 04:56:33 GMT

Content Headers

Content-Type

Content

text/html; charset=UTF-8

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

Server Headers

Server

cloudflare

server: cloudflare

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

set-cookie: __cf_bm=3Wrnf5.U8mHvpBzAv8J6JxZuYnqm89XW5I9pSB5oCgQ-1777991777.4236286-1.0.1.1-ai4stOBL526GPelGRl9KcezKUDJrTznzuOijmV7P.1VfDdYeZSXUT6FOrw4F1UBFNgPGMqYqe7FimZ6ZEaaDOeGDztHa2NbRE18_UITq71tTIvfISknWjV3XybBGNErr; HttpOnly; Secure; Path=/; Domain=otus.com; Expires=Tue, 05 May 2026 15:06:17 GMT
_cfuvid=yFIi_Z9f_0G1uaZxqC8xTpF6uWd95rA1ynoZheAoRmA-1777991777.4236286-1.0.1.1-kztzoZy.fiFDaYowwV2K2dh_uSfBxBSrGCMdBd6So4o; HttpOnly; SameSite=None; Secure; Path=/; Domain=otus.com

Other Headers

Alt-Svc

Other

h3=":443"; ma=86400

Cf-Ray

Other

9f707a00ee2bc9a7-IAD

Date

Other

Tue, 05 May 2026 14:36:17 GMT

Edge-Cache-Tag

Other

CT-184563818771,P-43646467,W-183585477724,CW-183047213704,CW-183047333272,CW-183047333278,CW-183050130506,CW-183050130508,CW-183050130510,CW-183050130514,CW-183050130522,CW-183050130524,CW-183050130538,CW-183050761898,CW-183050761999,CW-183586824529,CW-196552841243,DB-133948778,E-183050130549,E-183050457158,E-183050457161,E-183050457163,E-183050457165,E-183050457178,E-183050762034,E-183050762042,E-183050762045,E-185888296106,E-185888296196,MENU-183585477724,RA-183047213699,RA-183047333233,PGS-ALL,SW-1,GC-183585088948,GC-183585088953,GC-183585089075

Link

Other

URL

https://fonts.googleapis.com

rel=preconnect

URL

https://fonts.gstatic.com

rel=preconnect

URL

https://fonts.googleapis.com/css2?family=Lato:ital,wght@0,100;0,300;0,400;0,700;0,900;1,100;1,300;1,400;1,700;1,900&family=Montserrat:ital,wght@0,100..900;1,100..900&family=Open+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,300;1,400;1,500;1,600;1,700;1,800&display=swap

rel=preload as=style

URL

https://unpkg.com/[email protected]/dist/aos.css

rel=preload as=style

Nel

Other

Report-To Group cf-nel max-age: 1w

success: 1.0%

Report-To

Other

Group cf-nel max-age: 1w

Endpoint 1 https://a.nel.cloudflare.com/report/v4?s=6PTbetNyqejD%2FeQB9mlxIctI3ptzr27sQlIw7mFS0%2BVNyphDHD%2FmjWgDXTyiSdCpgrql4RAzxBGwCDEuE8YLg6QjGEJ2lEc0Z6c1lqc%2BOr5hRwo1%2BESQa4oO

X-Hs-Cache-Config

Other

BrowserCache-0s-EdgeCache-0s

X-Hs-Cache-Control

Other

s-maxage=36000, max-age=0

X-Hs-Cf-Cache-Status

Other

HIT

X-Hs-Cfworker-Meta

Other

{"contentType":"SITE_PAGE","resolver":"PreRenderedContentResolver"}

X-Hs-Content-Id

Other

184563818771

X-Hs-Hub-Id

Other

43646467

X-Hs-Portal-Id

Other

43646467

X-Hs-Prerendered

Other

Tue, 28 Apr 2026 04:56:33 GMT

alt-svc: h3=":443"; ma=86400
cf-ray: 9f707a00ee2bc9a7-IAD
date: Tue, 05 May 2026 14:36:17 GMT
edge-cache-tag: CT-184563818771,P-43646467,W-183585477724,CW-183047213704,CW-183047333272,CW-183047333278,CW-183050130506,CW-183050130508,CW-183050130510,CW-183050130514,CW-183050130522,CW-183050130524,CW-183050130538,CW-183050761898,CW-183050761999,CW-183586824529,CW-196552841243,DB-133948778,E-183050130549,E-183050457158,E-183050457161,E-183050457163,E-183050457165,E-183050457178,E-183050762034,E-183050762042,E-183050762045,E-185888296106,E-185888296196,MENU-183585477724,RA-183047213699,RA-183047333233,PGS-ALL,SW-1,GC-183585088948,GC-183585088953,GC-183585089075
link: <https://fonts.googleapis.com>; rel=preconnect,<https://fonts.gstatic.com>; rel=preconnect,<https://fonts.googleapis.com/css2?family=Lato:ital,wght@0,100;0,300;0,400;0,700;0,900;1,100;1,300;1,400;1,700;1,900&family=Montserrat:ital,wght@0,100..900;1,100..900&family=Open+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,300;1,400;1,500;1,600;1,700;1,800&display=swap>; rel=preload; as=style,<https://unpkg.com/[email protected]/dist/aos.css>; rel=preload; as=style,<https://unpkg.com/simplebar@latest/dist/simplebar.min.css>; rel=preload; as=style,<https://otus.com/hubfs/hub_generated/template_assets/1/183050130549/1777301627101/template_main.min.css>; rel=preload; as=style,<https://otus.com/hubfs/hub_generated/template_assets/1/183050457161/1777301621659/template_theme-overrides.min.css>; rel=preload; as=style,<https://otus.com/hubfs/hub_generated/template_assets/1/185888296106/1777301628016/template_wp-blog-styling.min.css>; rel=preload; as=style
nel: {"report_to":"cf-nel","success_fraction":0.01,"max_age":604800}
report-to: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=6PTbetNyqejD%2FeQB9mlxIctI3ptzr27sQlIw7mFS0%2BVNyphDHD%2FmjWgDXTyiSdCpgrql4RAzxBGwCDEuE8YLg6QjGEJ2lEc0Z6c1lqc%2BOr5hRwo1%2BESQa4oO"}]}
x-hs-cache-config: BrowserCache-0s-EdgeCache-0s
x-hs-cache-control: s-maxage=36000, max-age=0
x-hs-cf-cache-status: HIT
x-hs-cfworker-meta: {"contentType":"SITE_PAGE","resolver":"PreRenderedContentResolver"}
x-hs-content-id: 184563818771
x-hs-hub-id: 43646467
x-hs-portal-id: 43646467
x-hs-prerendered: Tue, 28 Apr 2026 04:56:33 GMT

Recommendations

Enable compression (gzip/brotli) to improve performance