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=exerciseinstructors.org.uk
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
April 11, 2026
Valid Until
July 10, 2026 62 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
A5:67:CD:DB:98:0F:96:0B:7F:A2:5F:84:80:FD:1F:B9:8D:75:42:A7:50:74:E7:3B:DD:CB:F9:62:75:AB:13:60
Alternative Names
90 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

90 domains
exerciseinstructors.org.uk *.exerciseinstructors.org.uk *.admin.exerciseinstructors.org.uk *.api.exerciseinstructors.org.uk *.app.exerciseinstructors.org.uk *.blog.exerciseinstructors.org.uk *.dev.exerciseinstructors.org.uk *.ftp.exerciseinstructors.org.uk *.mail.exerciseinstructors.org.uk *.mbcefadmin.exerciseinstructors.org.uk *.members.exerciseinstructors.org.uk *.portal.exerciseinstructors.org.uk *.prod.exerciseinstructors.org.uk *.report.exerciseinstructors.org.uk *.staging.exerciseinstructors.org.uk *.test.exerciseinstructors.org.uk

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fortnitelogin.com *.fortnitelogin.com *.ww25.fortnitelogin.com
hv11hh7.cyou *.hv11hh7.cyou
iblock.it *.iblock.it
laxsvg.com *.laxsvg.com
lbcsqi.icu *.lbcsqi.icu
leppertfs.com *.leppertfs.com
manach.com *.manach.com *.mx.manach.com *.omni.manach.com
*.300c0eea-c432-11eb-a39d-78b46a47de58.qgnda.com *.app.qgnda.com *.ci.qgnda.com *.hostmaster.qgnda.com qgnda.com *.qgnda.com *.rabr.qgnda.com *.sitemap.qgnda.com *.sitemaps.qgnda.com *.smtp.qgnda.com *.superset.qgnda.com *.urmc.qgnda.com *.wildcard.qgnda.com *.ww38.qgnda.com *.www.qgnda.com
stair-lifts-8026.click *.stair-lifts-8026.click
*.8a798efb-9712-4711-b314-ce238ad85a06.strengthclasses.com *.backup.strengthclasses.com *.cloud.strengthclasses.com *.de242cd4-87f4-4522-8dda-81eb1a683bee.strengthclasses.com *.dev1superset.strengthclasses.com *.e27d66a9-aad4-4a29-b22a-5ea00fb97351.strengthclasses.com *.efbe593f-09b3-47e9-b1be-57cd1f991b45.strengthclasses.com *.m.strengthclasses.com *.ra.strengthclasses.com *.rd.strengthclasses.com *.rds.strengthclasses.com *.rdweb.strengthclasses.com *.remote.strengthclasses.com *.smdiisuperset.strengthclasses.com *.staging.strengthclasses.com strengthclasses.com *.strengthclasses.com *.superset.strengthclasses.com *.uat.strengthclasses.com *.vps.strengthclasses.com
*.remoto.toddlersandbabies.com toddlersandbabies.com *.toddlersandbabies.com
*.torrent.ultivibe.com ultivibe.com *.ultivibe.com
verity.investments *.verity.investments
worldpray.org *.worldpray.org
wqrwasfasf.click *.wqrwasfasf.click
*.sitemap.xn--0n3a.com *.vpn.xn--0n3a.com *.www.xn--0n3a.com xn--0n3a.com *.xn--0n3a.com