HTTP Headers Analysis for https://help.otus.com

Detected Technologies from Headers

See all in URL Inspect 22

YouTube

Arcade

AWS CloudFront

Brightcove

Facebook

Google Analytics

Google Conversion Tracking

Google DoubleClick

Google Tag Manager

Guideflow

Intercom

JW Player

Loom Active incidents

Mux

Nginx

OneTrust

Microsoft SharePoint

Storylane

Twitter

Vidyard

Vimeo

Wistia

HTTP Security Headers

Status

Strict-Transport-Security

Missing

Not configured

Content-Security-Policy

Good

default-src; base-uri; connect-src; +8 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

• Add Strict-Transport-Security header with max-age of at least 1 year
• Strengthen CSP by removing 'unsafe-eval'
• Consider adding Permissions-Policy to control browser features

Performance Headers

Connection

Performance

close

Transfer-Encoding

Performance

chunked

Vary

Performance

Accept-Encoding, Sec-Fetch-Site

connection: close
transfer-encoding: chunked
vary: Accept-Encoding, Sec-Fetch-Site

Caching Headers

Cache-Control

Caching

max-age=0, private, must-revalidate

Etag

Caching

W/"8b864f7afb1841ddc779393dcaf7c2c6"

cache-control: max-age=0, private, must-revalidate
etag: W/"8b864f7afb1841ddc779393dcaf7c2c6"

Content Headers

Content-Type

Content

text/html; charset=utf-8

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

Server Headers

Server

nginx

X-Runtime

Server

0.166526

server: nginx
x-runtime: 0.166526

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

Cookies

set-cookie: recent_write=4ce81bf9-ef75-4eb8-90bd-e1449c19c5f8; path=/; max-age=1; httponly

Other Headers

Date

Other

Fri, 08 May 2026 03:49:35 GMT

Status

Other

200 OK

Via

Other

1.1 31113f2f23c4ce8a8af1d88a37137806.cloudfront.net (CloudFront)

X-Ami-Version

Other

ami-0b46f8e76476b6778

X-Amz-Cf-Id

Other

DE0eFdlHDemZQsg9ouiM32Cgm1PrfcNiZT5GBacdTpwy_oI-PHTyrw==

X-Amz-Cf-Pop

Other

IAD12-P1

X-Cache

Other

Miss from cloudfront

X-Intercom-Version

Other

49b414bdf5ea099a6db5523058ffa91d04b9db21

X-Request-Id

Other

0008luq5usi898f24ucg

X-Request-Queueing

Other

0

date: Fri, 08 May 2026 03:49:35 GMT
status: 200 OK
via: 1.1 31113f2f23c4ce8a8af1d88a37137806.cloudfront.net (CloudFront)
x-ami-version: ami-0b46f8e76476b6778
x-amz-cf-id: DE0eFdlHDemZQsg9ouiM32Cgm1PrfcNiZT5GBacdTpwy_oI-PHTyrw==
x-amz-cf-pop: IAD12-P1
x-cache: Miss from cloudfront
x-intercom-version: 49b414bdf5ea099a6db5523058ffa91d04b9db21
x-request-id: 0008luq5usi898f24ucg
x-request-queueing: 0

Recommendations

Enable compression (gzip/brotli) to improve performance