Cached · just now
15 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=31536000;
Content-Security-Policy
Basic
default-src; script-src; connect-src; +5 more
X-Frame-Options
Missing
Not configured
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
  • Improve CSP by adding more specific directives and removing 'unsafe-inline'
  • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
  • Consider adding Permissions-Policy to control browser features

Performance Headers

3 headers
Connection
Performance
close
Transfer-Encoding
Performance
chunked
Vary
Performance
Accept-Encoding

Caching Headers

0 headers
No caching headers found

Content Headers

1 headers
Content-Type
Content
text/html; charset=utf-8

Server Headers

1 headers
Server
Server
cloudflare

CORS Headers

0 headers
No CORS headers found

Cookies Headers

0 headers
No cookies headers found

Other Headers

6 headers
Cf-Cache-Status
Other
DYNAMIC
Cf-Ray
Other
9c1305638c53874a-IAD
Date
Other
Wed, 21 Jan 2026 01:26:01 GMT
Nel
Other
{"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
Report-To
Other
{"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=%2FVD0hKNZESns6rvZ0f0iCZA2mfH8hb2ZL1%2Fdj2fOTfLIAyh6HVpJDbuSd9LFJnExzAvnr6odPITPFz0PudU4gKahbkbUDJ54dy%2B7BocR"}]}
X-Cache-Debug
Other
img.lemlist.com.main

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching