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Security

· 12 checks — HTTP headers, CSP, TLS handshake, and cookie hygiene rolled into one auditable list.
SCORE
71
GRADE
C
FIX
3
REVIEW
3
PASS
6
INFO
0
Checks
12
6 PASS 3 REVIEW 3 FIX
F
Subresource Integrity
Action
0 of 7 external resources have SRI
FIX
0 of 7 external resources have SRI
Warning::
External link from static.licdn.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://static.licdn.com/aero-v1/sc/h/6oeiutsxi7fllzj32y0lr68gr
Warning::
External script from platform.linkedin.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://platform.linkedin.com/litms/utag/homepage-guest-frontend/utag.js?cb=1776902100000
Warning::
External script from static.licdn.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://static.licdn.com/aero-v1/sc/h/29rdkxlvag0d3cpj96fiilbju
Warning::
External script from static.licdn.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://static.licdn.com/aero-v1/sc/h/fx69lqty609xpf6l4xb6bs3a
Warning::
External script from static.licdn.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://static.licdn.com/aero-v1/sc/h/cyi85pvtvqxif4qx6o2q0eui4
Warning::
External script from static.licdn.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://static.licdn.com/aero-v1/sc/h/51t74mlo1ty7vakn3a80a9jcp
Warning::
External script from static.licdn.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://static.licdn.com/aero-v1/sc/h/e69gtg8c61dzqklxridy0htl9
SRI Coverage 0 / 7 of external resources have integrity hashes
TagDomainIntegrity
<link>static.licdn.com Missing
<script>platform.linkedin.com Missing
<script>static.licdn.com Missing
<script>static.licdn.com Missing
<script>static.licdn.com Missing
<script>static.licdn.com Missing
<script>static.licdn.com Missing
F
Email Security
Action
No DMARC
FIX
No DMARC
Warning::
No DMARC record found
Without DMARC, email receivers have no policy for handling authentication failures.
DMARC

No DMARC record found

Without DMARC, email receivers have no policy for handling authentication failures from your domain.

Without DMARC, email receivers have no policy for handling authentication failures.

Why this matters

Without DMARC, anyone can send phishing emails using your domain name.

Learn more

DMARC tells receiving mail servers what to do with email that fails SPF/DKIM checks for your domain. With a strict 'p=reject' policy, spoofed emails get bounced; without it they reach the inbox. Domains used in phishing campaigns lose deliverability and brand trust fast.

Source: DMARC.org / NIST

D
Permissions-Policy
Action
No header set
FIX
No header set
Warning::
No Permissions-Policy header
Consider adding a Permissions-Policy header to restrict browser feature access from embedded content.

No Permissions-Policy header set.

Without this header, embedded iframes can request access to sensitive device features.

Suggested header
Permissions-Policy: camera=(), microphone=(), geolocation=(), payment=(), usb=()
C
Security Headers
Action
5 of 10 headers properly configured
REVIEW
5 of 10 headers properly configured
Warning::
HSTS is missing includeSubDomains
Without includeSubDomains, subdomains can still be accessed over HTTP.
Got: max-age=31536000 Expected: max-age=31536000; includeSubDomains
Info::
X-Content-Type-Options is properly configured
Got: nosniff
Info::
X-Frame-Options is properly configured
Got: sameorigin
Warning::
Referrer-Policy header is missing
Controls how much referrer information is sent with requests. Set to 'strict-origin-when-cross-origin' or stricter.
Expected: strict-origin-when-cross-origin
Warning::
Permissions-Policy header is missing
Controls which browser features (camera, microphone, geolocation) are allowed. Set it to restrict unused features.
Expected: geolocation=(), camera=(), microphone=()
Info::
Content-Security-Policy is present
Got: default-src 'none'; connect-src 'self' *.licdn.com *.linkedin.com cdn.linkedin.o…
Warning::
Cross-Origin-Opener-Policy header is missing
COOP isolates your browsing context, preventing cross-origin side-channel attacks. Set to 'same-origin'.
Expected: same-origin
Warning::
Cross-Origin-Embedder-Policy header is missing
COEP prevents loading cross-origin resources without explicit permission. Required for SharedArrayBuffer and high-resolution timers.
Expected: require-corp
Info::
X-Powered-By header is not present
Info::
Server header is not present

Without includeSubDomains, subdomains can still be accessed over HTTP.

Expected: max-age=31536000; includeSubDomains
Why this matters

Without includeSubDomains, a forgotten dev subdomain over HTTP can set malicious cookies that ride to the apex.

Learn more

HSTS without includeSubDomains protects only the exact domain. Cookies set on a non-HSTS subdomain can ride to the apex via cookie-scope attacks. The fix is one directive append. Verify all subdomains support HTTPS first — adding includeSubDomains to a domain with HTTP-only subdomains breaks them.

Source: RFC 6797

Controls how much referrer information is sent with requests. Set to 'strict-origin-when-cross-origin' or stricter.

Expected: strict-origin-when-cross-origin
Why this matters

Default browser behavior leaks full URLs (including query params and tokens) to every third-party resource — set a strict policy.

Learn more

Without a Referrer-Policy header, browsers send the full referring URL with images, scripts, and fonts loaded from third-party origins. URLs containing tokens, user IDs, or session params end up in third-party logs. Set `Referrer-Policy: strict-origin-when-cross-origin` (or stricter) to limit leakage.

Source: MDN / W3C

Controls which browser features (camera, microphone, geolocation) are allowed. Set it to restrict unused features.

Expected: geolocation=(), camera=(), microphone=()
Why this matters

Permissions-Policy locks down browser APIs you don't use — without it, every page can request camera/mic/geolocation if XSS lands.

Learn more

By default every page can request the camera, microphone, geolocation, payment APIs, and dozens more. Permissions-Policy turns off the ones you don't need so a future bug can't quietly start using them. It's a defense-in-depth header — one line, big surface reduction.

Source: MDN / W3C

COOP isolates your browsing context, preventing cross-origin side-channel attacks. Set to 'same-origin'.

Expected: same-origin
Why this matters

COOP isolates your top-level browsing context from cross-origin windows — without it, popup-based side-channel attacks remain possible.

Learn more

Cross-Origin-Opener-Policy: same-origin prevents cross-origin pages from sharing a browsing-context group with yours. This blocks cross-window references that enable Spectre-style timing attacks and tab-nabbing. Required if you want to enable SharedArrayBuffer.

Source: MDN / web.dev

COEP prevents loading cross-origin resources without explicit permission. Required for SharedArrayBuffer and high-resolution timers.

Expected: require-corp
Why this matters

COEP enforces that all embedded resources opt-in to cross-origin embedding — required for cross-origin isolation features.

Learn more

Cross-Origin-Embedder-Policy: require-corp ensures every embedded resource (script, iframe, image) explicitly allows being loaded cross-origin. Combined with COOP, this enables the cross-origin-isolated context that unlocks SharedArrayBuffer, high-resolution timers, and other powerful APIs.

Source: MDN / web.dev

B
CORS Configuration
No CORS headers
REVIEW
No CORS headers
Info::
No CORS headers present — secure default
CORS Configuration Secure

No CORS headers detected.

Cross-origin requests are blocked by browser same-origin policy.

Origin reflection test

Some servers mirror the request Origin header, which can be exploited. Test manually:

curl -sI -H "Origin: https://evil.com" <url> | grep -i access-control
B
security.txt
Published with 2 contact(s)
REVIEW

security.txt

Contact: https://hackerone.com/linkedin, https://www.linkedin.com/help/linkedin/answer/62924
Policy: https://www.linkedin.com/.well-known/security.txt
A
Content Security Policy
6 of 10 CSP checks passed
PASS
6 of 10 CSP checks passed
Info::
Raw CSP policy
Got: default-src 'none'; connect-src 'self' *.licdn.com *.linkedin.com cdn.linkedin.oribi.io dpm.demdex.net/id lnkd.demdex.net blob: accounts.google.com/gsi/ linkedin.sc.omtrdc.net/b/ss/ v.clarity.ms/collect *.microsoft.com *.adnxs.com *.tealiumiq.com login.microsoftonline.com bat.bing.com lnkd.tt.omtrdc.net/rest/v1/delivery www.google.com google.com adservice.google.com pagead2.googlesyndication.com td.doubleclick.net www.googletagmanager.com www.googleadservices.com ad.doubleclick.net googleads.g.doubleclick.net; script-src 'report-sample' 'sha256-th47JTnh6tX15SUn/I+GGmsOSXpa7dh5Skner77gxlY=' 'sha256-SSoodjUD3LGm2FfFCVHGqEb8D4UM3OOigidT2UKDcYg=' 'sha256-cKTgdnmO6+hXd85a9wKg1effVfVzenUAtUCyOKY9bQE=' 'sha256-DwtT8+ZZKpxH9pqZNAmJ3GdbLAh5SsYaXR3omTXPCns=' 'sha256-sV9jZa797T0QWBzcU/CNd4tpBhTnh+TFdLnfjlitl28=' 'sha256-aa/Q8CRBDSqTQbCIyioPhZaz+G+dbPyu7BzsjInEmiU=' 'sha256-THuVhwbXPeTR0HszASqMOnIyxqEgvGyBwSPBKBF/iMc=' 'sha256-zTIusdVJJeXz9+iox2a+pdDglzbpRpFVRzEwvW4AONk=' 'sha256-iC8MPqNLw0FDnsBf4DlSkFLNTwhkI85aouiAEB819ic=' 'sha256-2EqrEvcPzl8c6/TSGVvaVMEe7lg700MAz/te4/3kTYY=' 'sha256-y5uW69VItKj51mcc7UD9qfptDVUqicZL+bItEpvVNDw=' 'sha256-DatsFGoJ8gFkzzxo47Ou76WZ+3QBPOQHtBu9p9b3DhA=' 'sha256-k95cyM8gFgPziZe5VQ2IvJvBUVyd5zFt2CokIUwqdHE=' 'sha256-PyCXNcEkzRWqbiNr087fizmiBBrq9O6GGD8eV3P09Ik=' 'sha256-RFqsjmAF1N5LnfpaHFvPqFlVkeIS/DtTAFor+JjJJVc=' 'sha256-2SQ55Erm3CPCb+k03EpNxU9bdV3XL9TnVTriDs7INZ4=' 'sha256-S/KSPe186K/1B0JEjbIXcCdpB97krdzX05S+dHnQjUs=' 'sha256-9pXOIwF4N0gPltLd3AI69lkCjSC2H/Eb3sc5zdmUyYU=' 'sha256-jou6v/Nleyzoc+LXktAv1Fp8M807dVVxy7E/yzVljHc=' 'sha256-6E4e/3dSvj/8JZT2S2yR91mspqM6MyOpKl5lrhHsZa8=' 'sha256-JfJ82reKxtqugVbfRGw/O/1x1Lm1I09rHueXSwvbRws=' 'sha256-BbV1i75oYRtLtfDWs7tnA8QLF5EOO1dVHKL0prVd/fQ=' 'sha256-3woF8BZ54TeXM+czaH3aXoaJsVpiamuAKFsXDykAR/Q=' 'sha256-vIfNcKb8ixJg1cfJIoNNYjWcm0lezj1/XpUNFiZyVsU=' 'sha256-cLsHUHFgT/VGX04cZrJ9xgm4HbzTR7ptutkxK+7BlMk=' 'sha256-BwU8jMnQYUhjOpsDVABpfddV/DlP1ZYrFcTumYw7x54=' 'sha256-wz6ika9i3WU3bpUPdhYDZeO/NrDQniDyiscN0LWnyaY=' 'sha256-3RIGhhApBii1KY+aW1xk7kFyoQY8vSVE5DfT7E9SJUc=' static.licdn.com static-exp1.licdn.com static-exp2.licdn.com static-exp3.licdn.com platform.linkedin.com platform-akam.linkedin.com platform-ecst.linkedin.com platform-azur.linkedin.com snap.licdn.com www.google.com/recaptcha/enterprise.js www.gstatic.com/recaptcha/releases/ www.googletagmanager.com/gtag/js www.googletagmanager.com/gtag/destination googleads.g.doubleclick.net/pagead/viewthroughconversion/ merchantpool1.linkedin.com/mdt.js; img-src data: blob: * 'self' *.licdn.com android-webview-video-poster:; font-src data: * 'self' *.licdn.com; style-src 'self' 'unsafe-inline' static.licdn.com static-exp1.licdn.com static-exp2.licdn.com static-exp3.licdn.com; media-src 'self' *.licdn.com *.lynda.com; worker-src 'self' blob: static.licdn.com static-exp1.licdn.com static-exp2.licdn.com static-exp3.licdn.com; frame-src 'self' www.youtube.com/embed/ www.youtube-nocookie.com/embed/ lnkd.demdex.net smartlock.google.com accounts.google.com player.vimeo.com *.linkedin.com www.slideshare.net *.megaphone.fm *.omny.fm *.sounder.fm msit.powerbi.com app.powerbi.com linkedin.github.io *.licdn.com *.adnxs.com acdn.adnxs-simple.com radar.cedexis.com edge-auth.microsoft.com flo.uri.sh play.vidyard.com www.google.com/recaptcha/ aat-acr-web-prod.azurewebsites.net *.fls.doubleclick.net www.googletagmanager.com td.doubleclick.net li.protechts.net *.xlgmedia.com *.px-cloud.net merchantpool1.linkedin.com; frame-ancestors 'self' *.www.linkedin.com:*; manifest-src 'self'; report-uri https://www.linkedin.com/security/csp?f=gg
Info::
default-src directive is set
Got: default-src 'none'
Info::
No 'unsafe-inline' in script source
Info::
No 'unsafe-eval' in script source
Info::
No wildcard in script source
Info::
object-src falls back to default-src
Warning::
base-uri directive is missing
Without base-uri, attackers can inject a <base> tag to hijack relative URLs. Set it to 'self' or 'none'.
Expected: base-uri 'self'
Info::
frame-ancestors directive is set
Got: frame-ancestors 'self' *.www.linkedin.com:*
Warning::
form-action directive is missing
form-action restricts where forms can submit data, preventing form hijacking.
Expected: form-action 'self'
Info::
upgrade-insecure-requests is not set
This directive upgrades HTTP resources to HTTPS automatically, preventing mixed content.
Expected: upgrade-insecure-requests

Without base-uri, attackers can inject a <base> tag to hijack relative URLs. Set it to 'self' or 'none'.

Expected: base-uri 'self'
Why this matters

Missing base-uri in CSP leaves a base-tag injection attack path open even on otherwise strict policies.

Learn more

A common omission: developers add CSP for script-src and frame-ancestors but forget base-uri. The result is a CSP that looks strict but lets an attacker rewrite every URL on the page via <base href>. Add `base-uri 'self'` to close the gap.

Source: MDN CSP

form-action restricts where forms can submit data, preventing form hijacking.

Expected: form-action 'self'
Why this matters

Security gaps expose your site and users to attacks, eroding trust.

This directive upgrades HTTP resources to HTTPS automatically, preventing mixed content.

Expected: upgrade-insecure-requests
Why this matters

Without upgrade-insecure-requests, any HTTP subresource link survives as a mixed-content warning instead of auto-upgrading.

Learn more

Adding `upgrade-insecure-requests` to your CSP turns every http:// subresource fetch into https:// at the browser layer. One-line defense against accidental mixed content from legacy links or third-party widgets.

Source: MDN CSP

Parsed Policy

default-src 'none'
connect-src 'self'*.licdn.com*.linkedin.comcdn.linkedin.oribi.iodpm.demdex.net/idlnkd.demdex.netblob:accounts.google.com/gsi/linkedin.sc.omtrdc.net/b/ss/v.clarity.ms/collect*.microsoft.com*.adnxs.com*.tealiumiq.comlogin.microsoftonline.combat.bing.comlnkd.tt.omtrdc.net/rest/v1/deliverywww.google.comgoogle.comadservice.google.compagead2.googlesyndication.comtd.doubleclick.netwww.googletagmanager.comwww.googleadservices.comad.doubleclick.netgoogleads.g.doubleclick.net
script-src 'report-sample''sha256-th47JTnh6tX15SUn/I+GGmsOSXpa7dh5Skner77gxlY=''sha256-SSoodjUD3LGm2FfFCVHGqEb8D4UM3OOigidT2UKDcYg=''sha256-cKTgdnmO6+hXd85a9wKg1effVfVzenUAtUCyOKY9bQE=''sha256-DwtT8+ZZKpxH9pqZNAmJ3GdbLAh5SsYaXR3omTXPCns=''sha256-sV9jZa797T0QWBzcU/CNd4tpBhTnh+TFdLnfjlitl28=''sha256-aa/Q8CRBDSqTQbCIyioPhZaz+G+dbPyu7BzsjInEmiU=''sha256-THuVhwbXPeTR0HszASqMOnIyxqEgvGyBwSPBKBF/iMc=''sha256-zTIusdVJJeXz9+iox2a+pdDglzbpRpFVRzEwvW4AONk=''sha256-iC8MPqNLw0FDnsBf4DlSkFLNTwhkI85aouiAEB819ic=''sha256-2EqrEvcPzl8c6/TSGVvaVMEe7lg700MAz/te4/3kTYY=''sha256-y5uW69VItKj51mcc7UD9qfptDVUqicZL+bItEpvVNDw=''sha256-DatsFGoJ8gFkzzxo47Ou76WZ+3QBPOQHtBu9p9b3DhA=''sha256-k95cyM8gFgPziZe5VQ2IvJvBUVyd5zFt2CokIUwqdHE=''sha256-PyCXNcEkzRWqbiNr087fizmiBBrq9O6GGD8eV3P09Ik=''sha256-RFqsjmAF1N5LnfpaHFvPqFlVkeIS/DtTAFor+JjJJVc=''sha256-2SQ55Erm3CPCb+k03EpNxU9bdV3XL9TnVTriDs7INZ4=''sha256-S/KSPe186K/1B0JEjbIXcCdpB97krdzX05S+dHnQjUs=''sha256-9pXOIwF4N0gPltLd3AI69lkCjSC2H/Eb3sc5zdmUyYU=''sha256-jou6v/Nleyzoc+LXktAv1Fp8M807dVVxy7E/yzVljHc=''sha256-6E4e/3dSvj/8JZT2S2yR91mspqM6MyOpKl5lrhHsZa8=''sha256-JfJ82reKxtqugVbfRGw/O/1x1Lm1I09rHueXSwvbRws=''sha256-BbV1i75oYRtLtfDWs7tnA8QLF5EOO1dVHKL0prVd/fQ=''sha256-3woF8BZ54TeXM+czaH3aXoaJsVpiamuAKFsXDykAR/Q=''sha256-vIfNcKb8ixJg1cfJIoNNYjWcm0lezj1/XpUNFiZyVsU=''sha256-cLsHUHFgT/VGX04cZrJ9xgm4HbzTR7ptutkxK+7BlMk=''sha256-BwU8jMnQYUhjOpsDVABpfddV/DlP1ZYrFcTumYw7x54=''sha256-wz6ika9i3WU3bpUPdhYDZeO/NrDQniDyiscN0LWnyaY=''sha256-3RIGhhApBii1KY+aW1xk7kFyoQY8vSVE5DfT7E9SJUc='static.licdn.comstatic-exp1.licdn.comstatic-exp2.licdn.comstatic-exp3.licdn.complatform.linkedin.complatform-akam.linkedin.complatform-ecst.linkedin.complatform-azur.linkedin.comsnap.licdn.comwww.google.com/recaptcha/enterprise.jswww.gstatic.com/recaptcha/releases/www.googletagmanager.com/gtag/jswww.googletagmanager.com/gtag/destinationgoogleads.g.doubleclick.net/pagead/viewthroughconversion/merchantpool1.linkedin.com/mdt.js
img-src data:blob:*'self'*.licdn.comandroid-webview-video-poster:
font-src data:*'self'*.licdn.com
style-src 'self''unsafe-inline'static.licdn.comstatic-exp1.licdn.comstatic-exp2.licdn.comstatic-exp3.licdn.com
media-src 'self'*.licdn.com*.lynda.com
worker-src 'self'blob:static.licdn.comstatic-exp1.licdn.comstatic-exp2.licdn.comstatic-exp3.licdn.com
frame-src 'self'www.youtube.com/embed/www.youtube-nocookie.com/embed/lnkd.demdex.netsmartlock.google.comaccounts.google.complayer.vimeo.com*.linkedin.comwww.slideshare.net*.megaphone.fm*.omny.fm*.sounder.fmmsit.powerbi.comapp.powerbi.comlinkedin.github.io*.licdn.com*.adnxs.comacdn.adnxs-simple.comradar.cedexis.comedge-auth.microsoft.comflo.uri.shplay.vidyard.comwww.google.com/recaptcha/aat-acr-web-prod.azurewebsites.net*.fls.doubleclick.netwww.googletagmanager.comtd.doubleclick.netli.protechts.net*.xlgmedia.com*.px-cloud.netmerchantpool1.linkedin.com
frame-ancestors 'self'*.www.linkedin.com:*
manifest-src 'self'
report-uri https://www.linkedin.com/security/csp?f=gg
A+
TLS & Certificates
TLS 1.3, 7 checks passed
PASS
TLS 1.3, 7 checks passed
Info::
TLS 1.3 is used
Got: TLS 1.3
Info::
Strong cipher suite is used
Got: TLS_AES_256_GCM_SHA384
Info::
HTTP/2 is not negotiated
HTTP/2 provides multiplexing and header compression for better performance.
Got: http/1.1
Info::
Certificate is valid (expires in 163 days)
Got: 2026-10-02T23:59:59Z
Info::
Certificate chain has 3 certificates
Info::
Certificate uses modern signature algorithm
Got: SHA256-RSA
Info::
Certificate covers 78 domain(s)
Got: ro.linkedin.com, rp.linkedin.com, rs.linkedin.com, ru.linkedin.com, rw.linkedin.com, sa.linkedin.com, sb.linkedin.com, sc.linkedin.com, sd.linkedin.com, se.linkedin.com, sf.linkedin.com, sg.linkedin.com, sh.linkedin.com, si.linkedin.com, sj.linkedin.com, sk.linkedin.com, sl.linkedin.com, sm.linkedin.com, sn.linkedin.com, so.linkedin.com, sr.linkedin.com, ss.linkedin.com, st.linkedin.com, su.linkedin.com, sv.linkedin.com, sx.linkedin.com, sy.linkedin.com, sz.linkedin.com, ta.linkedin.com, tc.linkedin.com, td.linkedin.com, tf.linkedin.com, tg.linkedin.com, th.linkedin.com, tj.linkedin.com, tk.linkedin.com, tl.linkedin.com, tm.linkedin.com, tn.linkedin.com, to.linkedin.com, tp.linkedin.com, tr.linkedin.com, tt.linkedin.com, tv.linkedin.com, tw.linkedin.com, tz.linkedin.com, ua.linkedin.com, ug.linkedin.com, uk.linkedin.com, um.linkedin.com, uy.linkedin.com, uz.linkedin.com, va.linkedin.com, vc.linkedin.com, vd.linkedin.com, ve.linkedin.com, vg.linkedin.com, vi.linkedin.com, vn.linkedin.com, vu.linkedin.com, wf.linkedin.com, wg.linkedin.com, wk.linkedin.com, wl.linkedin.com, wo.linkedin.com, ws.linkedin.com, wv.linkedin.com, yd.linkedin.com, ye.linkedin.com, yt.linkedin.com, yu.linkedin.com, yv.linkedin.com, za.linkedin.com, zm.linkedin.com, zr.linkedin.com, zw.linkedin.com, mr-in.linkedin.com, pa-in.linkedin.com
Info::
Certificate is issued by a trusted CA
Got: CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1,O=DigiCert Inc,C=US

HTTP/2 provides multiplexing and header compression for better performance.

Why this matters

HTTP/1.1 forces the browser to make sequential requests, multiplying latency on every page.

Learn more

HTTP/2 (and HTTP/3) multiplex many requests over a single connection, eliminating head-of-line blocking. HTTP/1.1 forces the browser to either queue requests or open many parallel connections — both worse. Most modern web servers support HTTP/2 with one config line.

Source: MDN Web Docs

Connection
Protocol
TLS 1.3
Cipher Suite
TLS_AES_256_GCM_SHA384
HTTP Version
HTTP/1.1

Certificate Chain

Leaf Certificate
Subject CN=ro.linkedin.com,O=LinkedIn Corporation,L=Sunnyvale,ST=California,C=USIssuer CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1,O=DigiCert Inc,C=USValid 2026-04-02T00:00:00Z → 2026-10-02T23:59:59ZExpires in 163 days SANs ro.linkedin.com, rp.linkedin.com, rs.linkedin.com, ru.linkedin.com, rw.linkedin.com, sa.linkedin.com, sb.linkedin.com, sc.linkedin.com, sd.linkedin.com, se.linkedin.com, sf.linkedin.com, sg.linkedin.com, sh.linkedin.com, si.linkedin.com, sj.linkedin.com, sk.linkedin.com, sl.linkedin.com, sm.linkedin.com, sn.linkedin.com, so.linkedin.com, sr.linkedin.com, ss.linkedin.com, st.linkedin.com, su.linkedin.com, sv.linkedin.com, sx.linkedin.com, sy.linkedin.com, sz.linkedin.com, ta.linkedin.com, tc.linkedin.com, td.linkedin.com, tf.linkedin.com, tg.linkedin.com, th.linkedin.com, tj.linkedin.com, tk.linkedin.com, tl.linkedin.com, tm.linkedin.com, tn.linkedin.com, to.linkedin.com, tp.linkedin.com, tr.linkedin.com, tt.linkedin.com, tv.linkedin.com, tw.linkedin.com, tz.linkedin.com, ua.linkedin.com, ug.linkedin.com, uk.linkedin.com, um.linkedin.com, uy.linkedin.com, uz.linkedin.com, va.linkedin.com, vc.linkedin.com, vd.linkedin.com, ve.linkedin.com, vg.linkedin.com, vi.linkedin.com, vn.linkedin.com, vu.linkedin.com, wf.linkedin.com, wg.linkedin.com, wk.linkedin.com, wl.linkedin.com, wo.linkedin.com, ws.linkedin.com, wv.linkedin.com, yd.linkedin.com, ye.linkedin.com, yt.linkedin.com, yu.linkedin.com, yv.linkedin.com, za.linkedin.com, zm.linkedin.com, zr.linkedin.com, zw.linkedin.com, mr-in.linkedin.com, pa-in.linkedin.comSignature SHA256-RSASerial 303ff8f5125d1860e25190409bd8d43
Intermediate (CA Certificate)
Subject CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1,O=DigiCert Inc,C=USIssuer CN=DigiCert Global Root G2,OU=www.digicert.com,O=DigiCert Inc,C=USValid 2021-03-30T00:00:00Z → 2031-03-29T23:59:59ZExpires in 1802 days Signature SHA256-RSASerial cf5bd062b5602f47ab8502c23ccf066
Intermediate (CA Certificate)
Subject CN=DigiCert Global Root G2,OU=www.digicert.com,O=DigiCert Inc,C=USIssuer CN=DigiCert Global Root G2,OU=www.digicert.com,O=DigiCert Inc,C=USValid 2013-08-01T12:00:00Z → 2038-01-15T12:00:00ZExpires in 4285 days Signature SHA256-RSASerial 33af1e6a711a9a0bb2864b11d09fae5
A
Cookie Security
5 cookies analyzed, 11 checks passed
PASS
5 cookies analyzed, 11 checks passed
Info::
Cookie 'JSESSIONID' has the Secure flag
Warning::
Cookie 'JSESSIONID' is missing the HttpOnly flag
Without HttpOnly, this cookie can be accessed by JavaScript, making it vulnerable to XSS-based theft.
Info::
Cookie 'JSESSIONID' has SameSite=None
Info::
Cookie 'lang' has the Secure flag
Warning::
Cookie 'lang' is missing the HttpOnly flag
Without HttpOnly, this cookie can be accessed by JavaScript, making it vulnerable to XSS-based theft.
Info::
Cookie 'lang' has SameSite=None
Info::
Cookie 'bcookie' has the Secure flag
Warning::
Cookie 'bcookie' is missing the HttpOnly flag
Without HttpOnly, this cookie can be accessed by JavaScript, making it vulnerable to XSS-based theft.
Info::
Cookie 'bcookie' has SameSite=None
Info::
Cookie 'bscookie' has the Secure flag
Info::
Cookie 'bscookie' has the HttpOnly flag
Info::
Cookie 'bscookie' has SameSite=None
Info::
Cookie 'lidc' has the Secure flag
Warning::
Cookie 'lidc' is missing the HttpOnly flag
Without HttpOnly, this cookie can be accessed by JavaScript, making it vulnerable to XSS-based theft.
Info::
Cookie 'lidc' has SameSite=None
5 cookies analyzed 4 warnings
NameSecureHttpOnlySameSiteSizeIssues
JSESSIONIDNone34 B1
langNone18 B1
bcookieNone47 B1
bscookieNone94 B
lidcNone110 B1
A+
JS Library Vulnerabilities
No known vulnerabilities
PASS
No known vulnerabilities
Info::
No known JavaScript library vulnerabilities detected

No known JavaScript library vulnerabilities detected.

A+
Information Leakage
No exposures
PASS
No exposures
Info::
security.txt is present — good practice
Info::
No sensitive files exposed

No sensitive files exposed — all paths returned 404.

PathStatusCategoryRisk
/.git/HEAD Not foundVersion Control
/.git/config Not foundVersion Control
/.svn/entries Not foundVersion Control
/.env Not foundConfiguration
/.env.local Not foundConfiguration
/.env.production Not foundConfiguration
/wp-config.php Not foundConfiguration
/.htaccess Not foundConfiguration
/phpinfo.php Not foundDebug
/server-status Not foundDebug
/server-info Not foundDebug
/.well-known/security.txt ExposedSecurity PolicyInfo
A
Transport Security
HTTP/3, HSTS, and TLS version analysis
PASS
HTTP/3, HSTS, and TLS version analysis
Info::
HTTP/3 (QUIC) not advertised
HTTP/3 eliminates head-of-line blocking. If your CDN supports it, consider enabling it.
Info::
HSTS enabled (base policy)
Info::
HSTS missing includeSubDomains
Without includeSubDomains, HSTS only protects the exact domain.
Info::
TLS 1.3 in use (fastest handshake, 1-RTT)
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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