89/100 SECURITY SCORE

Certificate Information

Subject
CN=mail.exp-lab.com
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
January 16, 2026
Valid Until
April 16, 2026 78 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
11:F7:9E:3A:20:82:9A:6E:D4:C2:02:4A:56:23:F5:27:56:0C:35:3D:D8:C6:42:A4:1E:D8:70:FC:38:85:C2:30
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=64072000; includeSubDomains; preload
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • Add Content-Security-Policy header to prevent XSS attacks
  • 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
Configured (Restricts certificate issuance)
Current Issuer
Authorized (Matches CAA policy)
Recommendations
  • Consider using critical flag (flags=128) for stricter CAA enforcement
  • Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts
  • Consider adding 'issuewild' records to control wildcard certificate issuance

Subject Alternative Names

86 domains
mail.pixelprints.studio

Other domains in certificate

mail.10229.net
mail.3icperu.com
mail.4waycontractors.com
mail.admlawyers.org
webmail.adsarquitetura.com.br
mail.alfrey.org
mail.allstarestimation.com
mail.alvinasschools.org
mail.auraclim.ca
mail.bacovin.net
mail.bcrcpride.ca
mail.bmtrims.com
mail.cabinetsgenius.com
mail.cachia.com
mail.caregigs.co
mail.ceramx.ae
mail.clementlabs.com
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webmail.encoremsi.com
mail.escolakingdom.com.br
mail.exp-lab.com
mail.femalescholars.org
mail.flick.ae
mail.gatbank.com
mail.gentysolutions.com
webmail.govertical.media
mail.grupocopresa.com
mail.harrisinfotech.com
mail.ihrke.net
mail.incommbiz.com
mail.ivmx.org
mail.lagosfireworks.com
correo.linea24peru.com.pe
email.link4.gt
mail.lords.academy
mail.lovic.ba
mail.lushan.io
email.marsiling.sg
mail.mateam.net
mail.mediscanstaffing.com
mail.milson-packing.com
mail.monjua.com.br
mail.mydatawise.com
mail.norttech.com
mail.octoadvisory.com
mail.patriotrising.tech
mail.philoxenia.online
mail.pr-one.com
mail.purefill.mx
mail.radiomelodia.com.pe
mail.relatoriosinteligentes.com
webmail.renaciente.com
correo.romeroreyes.com
mail.rtsinc.services
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webmail.sergio-ind.com
email.setmycompany.com
mail.shakaaraahllc.com
mail.shouchengbio.com
mail.sti.com.co
mail.studio3.pictures
mail.swyn.net
mail.tcontur.com
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mail.tekniteedng.com
webmail.touchpointoffice.com
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mail.wer-fitness.com
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mail.wolcott.xyz
mail.woodboxer.com
mail.xuanthuytas.vn
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wmail.zumbashop-sea.com