HTTP Headers Analysis for https://www.iterable.com

Detected Technologies from Headers

See all in URL Inspect 4

Iterable

Nginx

Pantheon

Varnish

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=300

Content-Security-Policy

Missing

Not configured 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

Missing

Not configured

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
• Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
• Add X-Content-Type-Options: nosniff
• Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
• Consider adding Permissions-Policy to control browser features

Performance Headers

Accept-Ranges

Performance

bytes

Connection

Performance

close

Vary

Performance

Accept-Encoding, Cookie, Cookie

accept-ranges: bytes
connection: close
vary: Accept-Encoding, Cookie, Cookie

Caching Headers

Age

Caching

69632

Cache-Control

Caching

public, max-age=604800

age: 69632
cache-control: public, max-age=604800

Content Headers

Content-Length

Content

388716

Content-Type

Content

text/html; charset=UTF-8

content-length: 388716
content-type: text/html; charset=UTF-8

Server Headers

Server

nginx

server: nginx

CORS Headers

No CORS headers found

Cookies Headers

No cookies headers found

Other Headers

Date

Other

Tue, 12 May 2026 15:06:32 GMT

Link

Other

URL

https://iterable.com/wp-json/

rel=https://api.w.org/

URL

https://iterable.com/wp-json/wp/v2/pages/286

rel=alternate title=JSON type=application/json

URL

https://iterable.com/

rel=shortlink

Via

Other

1.1 varnish, 1.1 varnish, 1.1 varnish, 1.1 varnish

X-Cache

Other

HIT, HIT, MISS, MISS

X-Cache-Hits

Other

20, 0, 0, 0

X-Pantheon-Styx-Hostname

Other

styx-us-a-5fbd9fdf97-5zvfz

X-Served-By

Other

cache-chi-kigq8000089-CHI, cache-ewr-kewr1740042-EWR, cache-ewr-kewr1740036-EWR, cache-ewr-kewr1740036-EWR

X-Styx-Req-Id

Other

094479ab-4d72-11f1-8d6c-ba6e2ff602d6

X-Timer

Other

S1778598393.742193,VS0,VE8

date: Tue, 12 May 2026 15:06:32 GMT
link: <https://iterable.com/wp-json/>; rel="https://api.w.org/", <https://iterable.com/wp-json/wp/v2/pages/286>; rel="alternate"; title="JSON"; type="application/json", <https://iterable.com/>; rel=shortlink
via: 1.1 varnish, 1.1 varnish, 1.1 varnish, 1.1 varnish
x-cache: HIT, HIT, MISS, MISS
x-cache-hits: 20, 0, 0, 0
x-pantheon-styx-hostname: styx-us-a-5fbd9fdf97-5zvfz
x-served-by: cache-chi-kigq8000089-CHI, cache-ewr-kewr1740042-EWR, cache-ewr-kewr1740036-EWR, cache-ewr-kewr1740036-EWR
x-styx-req-id: 094479ab-4d72-11f1-8d6c-ba6e2ff602d6
x-timer: S1778598393.742193,VS0,VE8

Recommendations

Enable compression (gzip/brotli) to improve performance