DNS Gurus
Cached · just now
76/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 1
Let's Encrypt logo Let's Encrypt

Certificate Information

Subject
CN=manning.bio
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
April 27, 2026
Valid Until
July 26, 2026 68 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
91:CD:7E:9E:26:25:0B:7E:2E:CD:51:CC:EF:86:CB:10:20:F2:B5:00:D5:AC:9F:93:CB:12:1F:9B:C4:97:0F:96
Alternative Names
89 domains

Security Configuration

TLS Protocols
TLS 1.2 TLS 1.3
Forward Secrecy
Supported (Modern clients use PFS)

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
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
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • 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

CAA Records (Certificate Authority Authorization)

CAA Records
Not Configured (Any CA can issue certificates)
CAA Issues
  • • No CAA records configured - any CA can issue certificates
Recommendations
  • • Implement CAA records to restrict which CAs can issue certificates for your domain
  • • This adds an extra layer of security against unauthorized certificate issuance
  • • Example: Add CAA record 'example.com. CAA 0 issue "letsencrypt.org"'
  • • Consider adding 'iodef' record to receive security incident reports

Subject Alternative Names

89 domains
manning.bio *.manning.bio *.data-viz.manning.bio

Other domains in certificate

aquaclearpool.com *.aquaclearpool.com *.sitemaps.aquaclearpool.com
auburnvalleygc.com *.auburnvalleygc.com *.comwww.auburnvalleygc.com *.upgrade.auburnvalleygc.com *.www.auburnvalleygc.com
*.7947ca23-a7de-4230-9937-e0497c3c5e8a.cryptonicloan.com cryptonicloan.com *.cryptonicloan.com
dygbj.channel *.dygbj.channel
easyepicjet.com *.easyepicjet.com
experttravelessence.xyz *.experttravelessence.xyz
f6jn35ikj7b48bn.com *.f6jn35ikj7b48bn.com
*.admin.fitnessqualitypro.run *.app.fitnessqualitypro.run fitnessqualitypro.run *.fitnessqualitypro.run *.marketing.fitnessqualitypro.run *.staging.fitnessqualitypro.run *.v2.fitnessqualitypro.run
locationbased.it *.locationbased.it *.remote.locationbased.it
*.arhiv.malorus.org *.co.malorus.org *.ftp.malorus.org *.magazin.malorus.org malorus.org *.malorus.org *.mnib.malorus.org *.portal.malorus.org *.reklama.malorus.org *.vestnik.malorus.org *.ww43.malorus.org *.www.malorus.org
*.api.removers.it *.app.removers.it *.backend.removers.it *.chart.removers.it *.data.removers.it *.demo.removers.it *.hostmaster.removers.it *.metric.removers.it *.owa.removers.it removers.it *.removers.it
*.cc.swu.ac *.clvpn.swu.ac *.course.swu.ac *.erdi.swu.ac *.fofa.swu.ac *.g.swu.ac *.gakuenrx.swu.ac *.hu.swu.ac *.ilc.swu.ac *.international.swu.ac *.ir.swu.ac *.ithesis.swu.ac *.lib.swu.ac *.m.swu.ac *.med.swu.ac *.moodle.swu.ac *.oop.swu.ac *.op.swu.ac *.pcmc.swu.ac *.ringkas.swu.ac *.sahakitsakulg.swu.ac *.science.swu.ac *.st.swu.ac swu.ac *.swu.ac *.webipass.swu.ac
*.sitemap.tustramites.info tustramites.info *.tustramites.info *.ww25.tustramites.info *.www.tustramites.info
*.2194l.uxilon.xyz uxilon.xyz *.uxilon.xyz