HTTP Headers Analysis for https://mailercloud.com

Detected Technologies from Headers

See all in URL Inspect 6

Cloudflare NEL Monitoring

Cloudflare CDN

Cloudflare CDNJS

Fonts.com

Google Fonts

HubSpot Forms

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=15552000; includeSubDomains; preload

Content-Security-Policy

Basic

default-src; script-src; worker-src; +13 more Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Missing

Not configured

X-Content-Type-Options

Good

nosniff

Referrer-Policy

Present

same-origin

Permissions-Policy

Present

accelerometer=(), browsing-topics=(), camera=(); +29 more

Recommendations

• Increase HSTS max-age to at least 1 year and add includeSubDomains
• Improve CSP by adding more specific directives and removing 'unsafe-inline'
• Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking

Performance Headers

Connection

Performance

close

Transfer-Encoding

Performance

chunked

Vary

Performance

accept-encoding

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

Caching Headers

Age

Caching

2151

Cache-Control

Caching

max-age=3600, s-maxage=3600

Last-Modified

Caching

Sat, 09 May 2026 19:07:50 GMT

age: 2151
cache-control: max-age=3600, s-maxage=3600
last-modified: Sat, 09 May 2026 19:07:50 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

Access-Control-Allow-Origin

Cors

*

access-control-allow-origin: *

Cookies Headers

No cookies headers found

Other Headers

Alt-Svc

Other

h3=":443"; ma=86400

Cf-Apo-Via

Other

tcache

Cf-Cache-Status

Other

HIT

Cf-Ray

Other

9f932f483a0bd321-IAD

Date

Other

Sat, 09 May 2026 19:41:58 GMT

Link

Other

URL

https://js-eu1.hsforms.net

rel=preconnect

URL https://help.mailercloud.com

rel=preconnect

Nel

Other

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

success: 0.0%

Report-To

Other

Group cf-nel max-age: 1w

Endpoint 1 https://a.nel.cloudflare.com/report/v4?s=zfTJ3dDrq%2BDk6tHb4rjQYidpaJDrIViXl4SdFB7yT3DuWU1791rEHEl6kANqXvIBFZUCeFLbp8Bt3vo%2BYDFze0%2Bb3B7xpNqb8f6tgqZy87RCkdJ6iyCXo0fqkQFuBHxEBm03MMWdF8ICxwo9YcU%3D

Server-Timing

Other

cfCacheStatus;desc="HIT", cfEdge;dur=16,cfOrigin;dur=0

Speculation-Rules

Other

"/cdn-cgi/speculation"

alt-svc: h3=":443"; ma=86400
cf-apo-via: tcache
cf-cache-status: HIT
cf-ray: 9f932f483a0bd321-IAD
date: Sat, 09 May 2026 19:41:58 GMT
link: <https://js-eu1.hsforms.net>; rel="preconnect", <https://help.mailercloud.com>; rel="preconnect"
nel: {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
report-to: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=zfTJ3dDrq%2BDk6tHb4rjQYidpaJDrIViXl4SdFB7yT3DuWU1791rEHEl6kANqXvIBFZUCeFLbp8Bt3vo%2BYDFze0%2Bb3B7xpNqb8f6tgqZy87RCkdJ6iyCXo0fqkQFuBHxEBm03MMWdF8ICxwo9YcU%3D"}]}
server-timing: cfCacheStatus;desc="HIT", cfEdge;dur=16,cfOrigin;dur=0
speculation-rules: "/cdn-cgi/speculation"

Recommendations

Enable compression (gzip/brotli) to improve performance