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Security

· 12 checks — HTTP headers, CSP, TLS handshake, and cookie hygiene rolled into one auditable list.
SCORE
84
GRADE
B
FIX
2
REVIEW
2
PASS
8
INFO
0
Checks
12
8 PASS 2 REVIEW 2 FIX
D
Subresource Integrity
Action
3 of 44 external resources have SRI
FIX
3 of 44 external resources have SRI
Info::
script from www.gstatic.com has SRI protection
Warning::
External script from buy.piano.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://buy.piano.io/api/v3/conversion/logAutoMicroConversion?tracking_id=%7Bkpdx%7DAAAArlsEmhvzbAoKaG9teXY1VXpwdRIQbW85MDFoaDJzaHZ2aTZmeRoMRVg3S0dIR1lLSUpZIiUxODA4ZWE4MGRnLTAwMDAzN2RoZWZicTkxZmg4bjhpOXU2b25zKiJzaG93UmVjb21tZW5kYXRpb25zNEVNQjNYOUYyM0dTMDJKUhJ2LW0A8B1jdWM4eTF3N2NaEjJhMDM6OTBjMDoyYTI6OjE0MWIDZGxtaLy6pM8GcAN4GA&event_type=EXTERNAL_EVENT&event_group_id=init&custom_params=%7B%22source%22%3A%22CX%22%7D&cookie_consents=null&previous_user_segments=%7B%22COMPOSER1X%22%3A%7B%22segments%22%3A%5B%22LTs%3A4cdd44dad79602b4da700ef2dd9c4930bd01272b%3Ano_score%22%2C%22LTc%3A08ad1a896aaa78123cb9bb1a6eae6ba4dbbb5c5f%3Ano_score%22%2C%22CScore%3Aecf852ad063a0755ca65d04cf0fc68ec9031ab33%3Ano_score%22%2C%22LTreg%3A804d93328a530877721059287eeb1933baf448cb%3Ano_score%22%5D%7D%7D&user_state=anon&browser_id=mo901hh2lm5bmjbx&page_title=Slate%20Magazine%20-%20Politics%2C%20Business%2C%20Technology%2C%20and%20the%20Arts&url=https%3A%2F%2Fslate.com%2F&page_view_id=mo901hh2shvvi6fy&content_type=website&callback=jsonp8139
Warning::
External script from nr-events.taboola.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: //nr-events.taboola.com/newsroom/1.0/slatecom/get-action?page.url=https%3A%2F%2Fslate.com%2F&view.id=884923492032073631&page.template=home&page.dashboard=home&ui=9c72b696-dc65-48a6-b3b3-ac121d243916-tuct10e1513b
Warning::
External script from cdn.cxense.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://cdn.cxense.com/cx.js
Warning::
External script from vidstat.taboola.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: //vidstat.taboola.com/lite-unit/5.7.0/UnitFeedManagerDesktop.min.js
Info::
script from cdn.amplitude.com has SRI protection
Warning::
External script from c2.taboola.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: //c2.taboola.com/nr/slatecom/newsroom.js
Warning::
External script from pm-widget.taboola.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: //pm-widget.taboola.com/slate1-network/load.js
Warning::
External script from gum.criteo.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: //gum.criteo.com/sync?c=72&r=2&j=TRC.getRTUS&us_privacy=1---&gdpr=0&gdpr_consent=&gdpr_pd=
Warning::
External script from id.piano.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://id.piano.io/id/api/v1/identity/token/verify?browser_id=mo901hh2lm5bmjbx&page_view_id=mo901hh2shvvi6fy&content_type=website&page_title=Slate+Magazine+-+Politics%2C+Business%2C+Technology%2C+and+the+Arts&callback=jsonp8138&client_id=homyv5Uzpu&site=https%3A%2F%2Fslate.com&user_state=anon
Warning::
External script from cdn.cxense.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://cdn.cxense.com/cx.cce.js
Warning::
External script from tagan.adlightning.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://tagan.adlightning.com/slate/bl-0d6ee0c-a32cf40a.js
Warning::
External script from tagan.adlightning.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://tagan.adlightning.com/slate/b-35dc2ea-84ad3ba1.js
Warning::
External script from cdn.amplitude.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://cdn.amplitude.com/libs/analytics-browser-gtm-wrapper-2.36.2.min.js.br
Warning::
External script from connect.facebook.net lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://connect.facebook.net/signals/config/166975463695820?v=2.9.303&r=stable&domain=slate.com&hme=97937018cefade17726f0472876fc101316b2ce9008a35a6a5a7977d7436151a&ex_m=104%2C205%2C154%2C22%2C72%2C73%2C145%2C68%2C67%2C11%2C162%2C90%2C16%2C138%2C127%2C39%2C75%2C78%2C134%2C159%2C164%2C8%2C4%2C5%2C7%2C6%2C3%2C91%2C101%2C165%2C170%2C219%2C62%2C186%2C187%2C55%2C276%2C30%2C74%2C231%2C230%2C229%2C23%2C33%2C103%2C61%2C10%2C63%2C97%2C98%2C99%2C105%2C130%2C31%2C29%2C132%2C133%2C129%2C128%2C155%2C76%2C158%2C156%2C157%2C50%2C60%2C123%2C15%2C161%2C45%2C263%2C264%2C262%2C26%2C27%2C28%2C48%2C146%2C77%2C112%2C18%2C20%2C44%2C40%2C42%2C41%2C83%2C92%2C96%2C110%2C144%2C147%2C46%2C111%2C24%2C21%2C119%2C69%2C36%2C149%2C148%2C150%2C141%2C139%2C25%2C35%2C59%2C109%2C160%2C70%2C17%2C152%2C114%2C81%2C66%2C19%2C85%2C86%2C116%2C84%2C136%2C135%2C34%2C278%2C293%2C212%2C201%2C202%2C200%2C296%2C288%2C52%2C213%2C107%2C131%2C80%2C121%2C54%2C47%2C49%2C113%2C120%2C126%2C58%2C64%2C151%2C115%2C37%2C32%2C53%2C56%2C100%2C163%2C1%2C124%2C14%2C122%2C12%2C2%2C57%2C93%2C65%2C118%2C89%2C88%2C166%2C167%2C94%2C95%2C9%2C125%2C102%2C51%2C142%2C87%2C79%2C71%2C117%2C106%2C43%2C143%2C0%2C82%2C137%2C140%2C153%2C38%2C108%2C13%2C168
Warning::
External script from connect.facebook.net lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://connect.facebook.net/en_US/fbevents.js
Warning::
External script from www.googletagmanager.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.googletagmanager.com/gtag/js?id=AW-794295919&cx=c&gtm=4e64h1
Warning::
External script from cdn.taboola.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: //cdn.taboola.com/libtrc/slate1-network/loader.js
Info::
script from cdn.amplitude.com has SRI protection
Warning::
External script from geolocation.onetrust.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://geolocation.onetrust.com/cookieconsentpub/v1/geo/location/dnsfeed
Warning::
External script from www.googletagmanager.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.googletagmanager.com/gtm.js?id=GTM-PR2DTBV
Warning::
External script from experiments.parsely.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://experiments.parsely.com/vip-experiments.js?apiKey=slate.com
Warning::
External script from cdn.cookielaw.org lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://cdn.cookielaw.org/scripttemplates/otSDKStub.js
Warning::
External script from cdn.cookielaw.org lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://cdn.cookielaw.org/opt-out/otCCPAiab.js
Warning::
External script from dot.cdnslate.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://dot.cdnslate.com/static/media/components/slate-ad-prebid/prebid.min.ee18c3d.js
Warning::
External script from securepubads.g.doubleclick.net lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://securepubads.g.doubleclick.net/tag/js/gpt.js
Warning::
External script from c.amazon-adsystem.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://c.amazon-adsystem.com/aax2/apstag.js
Warning::
External script from cdn.sophi.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://cdn.sophi.io/assets/demeter/1/stable/3253495344.js?isConsented=true
Warning::
External script from experience.piano.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://experience.piano.io/api/tinypass.min.js
Warning::
External script from tagan.adlightning.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://tagan.adlightning.com/slate/op.js
Warning::
External script from www.npttech.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: //www.npttech.com/advertising.js
Warning::
External script from cdn.cookielaw.org lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://cdn.cookielaw.org/scripttemplates/202601.2.0/otBannerSdk.js
Warning::
External script from securepubads.g.doubleclick.net lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js?cb=31097945
Warning::
External script from config.aps.amazon-adsystem.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://config.aps.amazon-adsystem.com/configs/3075
Warning::
External script from secure.cdn.fastclick.net lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: //secure.cdn.fastclick.net/js/pubcid/latest/pubcid.min.js
Warning::
External script from fundingchoicesmessages.google.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://fundingchoicesmessages.google.com/i/91898098?ers=3
Warning::
External script from googleads.g.doubleclick.net lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://googleads.g.doubleclick.net/pagead/viewthroughconversion/794295919/?random=1776798651566&cv=11&fst=1776798651566&bg=ffffff&guid=ON&async=1&en=gtag.config&gtm=45be64h1v9176038600z877638237za20gzb77638237zd77638237xec&gcd=13t3t3t3t5l1&dma=0&tag_exp=0~115616986~115938465~115938468~117266400~118128922&u_w=800&u_h=600&url=https%3A%2F%2Fslate.com%2F&rcb=5&frm=0&tiba=Slate%20Magazine%20-%20Politics%2C%20Business%2C%20Technology%2C%20and%20the%20Arts&gdid=dYWJhMj&hn=www.googleadservices.com&npa=0&us_privacy=1---&pscdl=noapi&auid=1903704805.1776798651&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uamb=0&uam=&uap=Linux&uapv=&uaw=0&data=event%3Dgtag.config&rfmt=3&fmt=4
Warning::
External script from googleads.g.doubleclick.net lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://googleads.g.doubleclick.net/pagead/viewthroughconversion/779764425/?random=1776798651567&cv=11&fst=1776798651567&bg=ffffff&guid=ON&async=1&en=gtag.config&gtm=45be64h1v9176038600z877638237za20gzb77638237zd77638237xec&gcd=13t3t3t3t5l1&dma=0&tag_exp=0~115616986~115938465~115938468~117266400~118128922&u_w=800&u_h=600&url=https%3A%2F%2Fslate.com%2F&rcb=5&frm=0&tiba=Slate%20Magazine%20-%20Politics%2C%20Business%2C%20Technology%2C%20and%20the%20Arts&gdid=dYWJhMj&hn=www.googleadservices.com&npa=0&us_privacy=1---&pscdl=noapi&auid=1903704805.1776798651&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uamb=0&uam=&uap=Linux&uapv=&uaw=0&data=event%3Dgtag.config&rfmt=3&fmt=4
Warning::
External script from pm-widget.taboola.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: //pm-widget.taboola.com/slate1-network/pmk-20220605.3.js
Warning::
External script from fundingchoicesmessages.google.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://fundingchoicesmessages.google.com/f/AGSKWxVLilMrd7fwtxlDUqSG9GKt8zTQVK0RIXCXbjG7-UiWsgLvS_Rlt0TNmf40jC4jEqp2lgEiRv8yzZHIDFLgsL7Y_Q8v_iY6xRVbgbJaBBVDWZBOL8P08B9WSztrJXCp_PAf5x_IaQ==?fccs=W251bGwsbnVsbCxudWxsLG51bGwsbnVsbCxudWxsLFsxNzc2Nzk4NjUyLDI2MTAwMDAwMF0sbnVsbCxudWxsLG51bGwsW251bGwsWzddXSwiaHR0cHM6Ly9zbGF0ZS5jb20vIixudWxsLFtbOCwiRHNLR04tcXFmclEiXSxbOSwiZW4tVVMiXSxbMTgsIltbW251bGwsMTUxM11dXSJdLFszNSwiMTc3Njc5ODY1MiJdLFsxOSwiMiJdLFsxNywiWzBdIl0sWzI0LCIiXSxbMjksInRydWUiXV1d
Warning::
External script from fundingchoicesmessages.google.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://fundingchoicesmessages.google.com/f/AGSKWxUp4ZsXNekAG6vzRLDnkJ-RJ3pz9RewXCLuf_xlLdHB7bxvDb667b8JVG6b8tEDswF1yXGfJ8CufPu0YBafFlTY5-s8KYybuC8xVp5UaeTuiAxxqPrrKKbzA2AEJniLzOELVUHZ7w==?fccs=W251bGwsbnVsbCxudWxsLG51bGwsbnVsbCxudWxsLFsxNzc2Nzk4NjUzLDY0MDAwMDAwXSxudWxsLG51bGwsbnVsbCxbbnVsbCxbNyw5XSxudWxsLDIsbnVsbCwiZW4iXSwiaHR0cHM6Ly9zbGF0ZS5jb20vIixudWxsLFtbOCwiRHNLR04tcXFmclEiXSxbOSwiZW4tVVMiXSxbMTgsIltbW251bGwsMTUxM11dXSJdLFszNSwiMTc3Njc5ODY1MiJdLFsxOSwiMiJdLFsxNywiWzBdIl0sWzI0LCIiXSxbMjksInRydWUiXV1d
Warning::
External script from www.google.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.google.com/recaptcha/api.js?onload=onCaptchaV3Load&render=explicit
Warning::
External script from fundingchoicesmessages.google.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://fundingchoicesmessages.google.com/f/AGSKWxVCz9v_Va7mVJbC6XdAewvvG2YeNFo0VGVLJ8cVd2FGq3ICTEY4rdYSKkrTyHIjDP3wrzIyIpoFHxvDDMYJnXGB4TnGBwUTTqeAv2sUzr1f5bG_EQv5LOQBsF69xfk9Zc4RlzEW-Q==?fccs=W251bGwsbnVsbCxudWxsLG51bGwsbnVsbCxudWxsLFsxNzc2Nzk4NjUzLDk2OTAwMDAwMF0sbnVsbCxudWxsLG51bGwsW251bGwsWzcsOSw2XSxudWxsLDIsbnVsbCwiZW4iLG51bGwsbnVsbCxudWxsLG51bGwsbnVsbCwxXSwiaHR0cHM6Ly9zbGF0ZS5jb20vIixudWxsLFtbOCwiRHNLR04tcXFmclEiXSxbOSwiZW4tVVMiXSxbMTgsIltbW251bGwsMTUxM11dXSJdLFszNSwiMTc3Njc5ODY1MiJdLFsxOSwiMiJdLFsxNywiWzBdIl0sWzI0LCIiXSxbMjksInRydWUiXV1d
Warning::
External script from ats-wrapper.privacymanager.io lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://ats-wrapper.privacymanager.io/ats-modules/f6ed6589-5170-40c6-98bc-a4a49ff26fa8/ats.js
SRI Coverage 3 / 44 of external resources have integrity hashes
TagDomainIntegrity
<script>www.gstatic.com✓ Protected
<script>buy.piano.io✗ Missing
<script>nr-events.taboola.com✗ Missing
<script>cdn.cxense.com✗ Missing
<script>vidstat.taboola.com✗ Missing
<script>cdn.amplitude.com✓ Protected
<script>c2.taboola.com✗ Missing
<script>pm-widget.taboola.com✗ Missing
<script>gum.criteo.com✗ Missing
<script>id.piano.io✗ Missing
<script>cdn.cxense.com✗ Missing
<script>tagan.adlightning.com✗ Missing
<script>tagan.adlightning.com✗ Missing
<script>cdn.amplitude.com✗ Missing
<script>connect.facebook.net✗ Missing
<script>connect.facebook.net✗ Missing
<script>www.googletagmanager.com✗ Missing
<script>cdn.taboola.com✗ Missing
<script>cdn.amplitude.com✓ Protected
<script>geolocation.onetrust.com✗ Missing
<script>www.googletagmanager.com✗ Missing
<script>experiments.parsely.com✗ Missing
<script>cdn.cookielaw.org✗ Missing
<script>cdn.cookielaw.org✗ Missing
<script>dot.cdnslate.com✗ Missing
<script>securepubads.g.doubleclick.net✗ Missing
<script>c.amazon-adsystem.com✗ Missing
<script>cdn.sophi.io✗ Missing
<script>experience.piano.io✗ Missing
<script>tagan.adlightning.com✗ Missing
<script>www.npttech.com✗ Missing
<script>cdn.cookielaw.org✗ Missing
<script>securepubads.g.doubleclick.net✗ Missing
<script>config.aps.amazon-adsystem.com✗ Missing
<script>secure.cdn.fastclick.net✗ Missing
<script>fundingchoicesmessages.google.com✗ Missing
<script>googleads.g.doubleclick.net✗ Missing
<script>googleads.g.doubleclick.net✗ Missing
<script>pm-widget.taboola.com✗ Missing
<script>fundingchoicesmessages.google.com✗ Missing
<script>fundingchoicesmessages.google.com✗ Missing
<script>www.google.com✗ Missing
<script>fundingchoicesmessages.google.com✗ Missing
<script>ats-wrapper.privacymanager.io✗ Missing
D
security.txt
Action
No /.well-known/security.txt published
FIX

security.txt

No security.txt found at /.well-known/security.txt

B
Content Security Policy
3 of 10 CSP checks passed
REVIEW
3 of 10 CSP checks passed
Info::
Raw CSP policy
Got: upgrade-insecure-requests;frame-ancestors 'self' slate.com *.slate.com *.my.slate.com
Warning::
default-src directive is missing
default-src provides a fallback for other directives. Set it to restrict default resource loading.
Expected: default-src 'self'
Info::
No script-src or default-src to check for 'unsafe-inline'
Info::
No script-src or default-src to check for 'unsafe-eval'
Info::
No script-src or default-src to check for wildcard
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' slate.com *.slate.com *.my.slate.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 enabled

default-src provides a fallback for other directives. Set it to restrict default resource loading.

Expected: default-src 'self'
Why this matters

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

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.

Parsed Policy

upgrade-insecure-requests
frame-ancestors 'self'slate.com*.slate.com*.my.slate.com
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
A
Security Headers
8 of 10 headers properly configured
PASS
8 of 10 headers properly configured
Info::
Strict-Transport-Security is properly configured (consider adding preload)
Got: max-age=31536000; includeSubDomains
Info::
X-Content-Type-Options is properly configured
Got: nosniff
Info::
X-Frame-Options is properly configured
Got: sameorigin
Info::
Referrer-Policy is properly configured
Got: no-referrer-when-downgrade
Info::
Permissions-Policy is set
Got: camera=(),microphone=(),geolocation=(),gyroscope=(),magnetometer=(),accelerometer=(),usb=()
Info::
Content-Security-Policy is present
Got: upgrade-insecure-requests;frame-ancestors 'self' slate.com *.slate.com *.my.slat…
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

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.

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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

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_128_GCM_SHA256
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 57 days)
Got: 2026-06-17T22:48:00Z
Info::
Certificate chain has 2 certificates
Info::
Certificate uses modern signature algorithm
Got: SHA256-RSA
Info::
Certificate covers 1 domain(s)
Got: slate.com
Info::
Certificate is issued by a trusted CA
Got: CN=R13,O=Let's Encrypt,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_128_GCM_SHA256
HTTP Version
HTTP/1.1

Certificate Chain

Leaf Certificate
Subject CN=slate.comIssuer CN=R13,O=Let's Encrypt,C=USValid 2026-03-19T22:48:01Z → 2026-06-17T22:48:00ZExpires in 57 days SANs slate.comSignature SHA256-RSASerial 5b51faef3ffd6ef531cc2ed3b5b521c44cf
Intermediate (CA Certificate)
Subject CN=R13,O=Let's Encrypt,C=USIssuer CN=ISRG Root X1,O=Internet Security Research Group,C=USValid 2024-03-13T00:00:00Z → 2027-03-12T23:59:59ZExpires in 325 days Signature SHA256-RSASerial 5a00f212d8d4b480f3924157ea298305
A
Cookie Security
2 cookies analyzed, 4 checks passed
PASS
2 cookies analyzed, 4 checks passed
Info::
Cookie 'slate-uuid' has the Secure flag
Warning::
Cookie 'slate-uuid' is missing the HttpOnly flag
Without HttpOnly, this cookie can be accessed by JavaScript, making it vulnerable to XSS-based theft.
Info::
Cookie 'slate-uuid' has SameSite=Strict
Info::
Cookie 'AB' has the Secure flag
Warning::
Cookie 'AB' is missing the HttpOnly flag
Without HttpOnly, this cookie can be accessed by JavaScript, making it vulnerable to XSS-based theft.
Info::
Cookie 'AB' has SameSite=Strict
2 cookies analyzed 2 warnings
NameSecureHttpOnlySameSiteSizeIssues
slate-uuid✓✗Strict46 B1
AB✓✗Strict6 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::
No security.txt found
Consider adding a security.txt at /.well-known/security.txt.
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✓ Not foundSecurity Policy—
A+
Email Security
DMARC: reject
PASS
DMARC: reject
Info::
DMARC policy is reject — strongest protection
DMARC
Policy reject — strongest protection Record v=DMARC1; p=reject; fo=1; ri=3600; rua=mailto:iyu10eqj@ag.us.dmarcian.com; ruf=mailto:dmarc_ruf@slate.com;
A+
Permissions-Policy
7 directives, 1 missing
PASS
7 directives, 1 missing
Info::
camera=() — blocked for all origins
Info::
microphone=() — blocked for all origins
Info::
geolocation=() — blocked for all origins
Info::
gyroscope=() — blocked for all origins
Info::
magnetometer=() — blocked for all origins
Info::
accelerometer=() — blocked for all origins
Info::
usb=() — blocked for all origins
Info::
payment not restricted
Consider adding payment=() to block payment access from embedded content.

Raw Header

camera=() microphone=() geolocation=() gyroscope=() magnetometer=() accelerometer=() usb=()

Feature Permissions

Blocked Self Only Unrestricted Not Set
camera Blocked
microphone Blocked
geolocation Blocked
gyroscope Blocked
magnetometer Blocked
accelerometer Blocked
usb Blocked
payment Not Set
A+
Transport Security
HTTP/3, HSTS, and TLS version analysis
PASS
HTTP/3, HSTS, and TLS version analysis
Info::
HTTP/3 (QUIC) supported
The server advertises HTTP/3 via Alt-Svc for faster connections on mobile networks.
Info::
HSTS enabled (includeSubDomains)
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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