Open
Cached
·
just now
96/100
SECURITY SCORE
Certificate Information
Subject
CN=workflowy.com
Issuer
C=US, O=Let's Encrypt, CN=E8
Valid From
January 06, 2026
Valid Until
April 06, 2026
77 days
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
08:51:9C:6F:5C:1E:B8:EA:14:40:CE:C5:0C:2F:2A:50:C4:B4:5C:93:50:D8:BA:FB:6E:EF:BA:9F:4E:F6:E7:72
Alternative Names
Security Configuration
TLS Protocols
TLS 1.2
TLS 1.3
Forward Secrecy
Supported
(Modern clients use PFS)
HTTP Security Headers
Status
Strict-Transport-Security
Excellent
max-age=31536000; includeSubDomains; preload
Content-Security-Policy
Good
object-src; form-action; script-src; +14 more
object-src 'none'; form-action 'self' https://workflowy.com https://beta.workflowy.com; script-src 'self' 'report-sample' https://workflowy.com https://beta.workflowy.com https://js.stripe.com https://*.js.stripe.com https://checkout.stripe.com https://maps.googleapis.com https://www.googletagmanager.com https://*.google-analytics.com 'sha256-AM+qrHgqKjdOAwV4tcH6/4BD1Bwq0hvfFE4XPJgm73A=' https://www.recaptcha.net https://www.gstatic.com https://www.google.com https://ajax.googleapis.com https://d3e54v103j8qbb.cloudfront.net https://*.website-files.com https://static.hotjar.com https://script.hotjar.com https://*.youtube.com https://platform.twitter.com https://cdn.syndication.twimg.com https://*.facebook.net https://www.loom.com https://cdn.loom.com 'nonce-Kq7cui3OkWmrKMQ7TBoSsQ=='; upgrade-insecure-requests; frame-ancestors 'self' https://workflowy.com https://beta.workflowy.com https://workflowy.com https://*.workflowy.com https://teams.microsoft.com; font-src 'self' data: https://workflowy.com https://beta.workflowy.com https://fonts.gstatic.com https://fonts.cdnfonts.com https://cdnjs.cloudflare.com https://*.website-files.com https://use.typekit.net; media-src 'self' blob: https://workflowy.com https://beta.workflowy.com https://s3.amazonaws.com; script-src-elem 'self' 'report-sample' https://workflowy.com https://beta.workflowy.com https://js.stripe.com https://*.js.stripe.com https://checkout.stripe.com https://maps.googleapis.com https://www.googletagmanager.com https://*.google-analytics.com 'sha256-AM+qrHgqKjdOAwV4tcH6/4BD1Bwq0hvfFE4XPJgm73A=' https://www.recaptcha.net https://www.gstatic.com https://www.google.com https://ajax.googleapis.com https://d3e54v103j8qbb.cloudfront.net https://*.website-files.com https://static.hotjar.com https://script.hotjar.com https://*.youtube.com https://platform.twitter.com https://cdn.syndication.twimg.com https://*.facebook.net https://www.loom.com https://cdn.loom.com 'nonce-Kq7cui3OkWmrKMQ7TBoSsQ=='; default-src 'self' https://workflowy.com https://beta.workflowy.com; frame-src 'self' https://workflowy.com https://beta.workflowy.com https://js.stripe.com https://*.js.stripe.com https://hooks.stripe.com https://checkout.stripe.com https://www.recaptcha.net https://www.google.com https://*.youtube.com https://youtube.com https://*.youtube-nocookie.com https://platform.twitter.com https://syndication.twitter.com https://x.com https://www.loom.com * workflowy:; base-uri 'self'; worker-src 'self' blob: https://workflowy.com https://beta.workflowy.com; style-src-elem 'self' 'unsafe-inline' 'report-sample' https://workflowy.com https://beta.workflowy.com https://fonts.googleapis.com https://fonts.cdnfonts.com https://cdnjs.cloudflare.com https://*.website-files.com https://use.typekit.net; img-src 'self' data: blob: https://workflowy.com https://beta.workflowy.com https://*.stripe.com https://*.google-analytics.com https://stats.g.doubleclick.net https://www.googletagmanager.com https://*.website-files.com https://uploads-ssl.webflow.com https://s3.amazonaws.com https://*.hotjar.com https://i.ytimg.com https://s.ytimg.com https://yt3.ggpht.com https://pbs.twimg.com https://ton.twimg.com https://x.com https://*.facebook.com https://*.facebook.net https://cdn.loom.com; style-src 'self' 'unsafe-inline' 'report-sample' https://workflowy.com https://beta.workflowy.com https://fonts.googleapis.com https://fonts.cdnfonts.com https://cdnjs.cloudflare.com https://*.website-files.com https://use.typekit.net; connect-src 'self' https://workflowy.com https://beta.workflowy.com https://api.stripe.com https://checkout.stripe.com https://maps.googleapis.com https://*.google-analytics.com https://www.googletagmanager.com https://stats.g.doubleclick.net https://www.recaptcha.net https://www.google.com https://s3.amazonaws.com https://sentry.workflowy.com https://api.amplitude.com https://hotjar.com https://*.hotjar.com https://vars.hotjar.com wss://*.hotjar.com https://*.hotjar.io https://syndication.twitter.com https://*.facebook.com https://www.loom.com https://workflowy.zendesk.com; report-uri /csp-report
X-Frame-Options
Excellent
DENY
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Present
same-origin
Permissions-Policy
Missing
Not configured
Recommendations
- • Strengthen CSP by removing 'unsafe-eval'
- • Consider adding Permissions-Policy to control browser features
CAA Records (Certificate Authority Authorization)
CAA Records
Configured
(Restricts certificate issuance)
Current Issuer
Authorized
(Matches CAA policy)
Authorized CAs
amazon.com
amazonaws.com
amazontrust.com
awstrust.com
comodoca.com
digicert.com
; cansignhttpexchanges=yes
letsencrypt.org
pki.goog
; cansignhttpexchanges=yes
ssl.com
Wildcard CAs
amazontrust.com
awstrust.com
comodoca.com
digicert.com
; cansignhttpexchanges=yes
letsencrypt.org
pki.goog
; cansignhttpexchanges=yes
ssl.com
amazon.com
amazonaws.com
Recommendations
- • Consider using critical flag (flags=128) for stricter CAA enforcement
- • You have authorized 9 CAs - consider limiting to only the CAs you actively use
- • Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts