Cached · just now
89/100 SECURITY SCORE

Certificate Information

Subject
CN=mail.wizberg-os.com
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
November 16, 2025
Valid Until
February 14, 2026 53 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
B7:CC:FD:C7:95:50:AB:A0:19:04:4B:8F:9A:E8:B4:C7:0C:AF:A2:0D:C1:DF:B6:8F:75:F2:44:D8:06:6B:C3:13
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

88 domains
mail.vizsoft.in

Other domains in certificate

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mail.arrownetsylhet.com
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webmail.azoguemg.com
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mail.bytesizedsites.com
mail.careforsyria.org
mail.cartoriopatriciarosapaes.com.br
mail.cetayadigital.com
mail.chezbrodeur.net
mail.clanmathis.com
mail.prolineservices.co.in
mail.infinitelogix.com.my
mail.baomar.com.om
mail.compassfamilyjourneys.com
mail.davisdigital.ca
mail.deepinnoline.com
mail.defo.tech
barua.delightsolutionsltd.com
mail.digitaport.com
mail.e-helper.app
mail.ecovisindonesia.com
mail.fullstackboston.com
mail.garnettrose.com
mail.gasen.mx
mail.gessfbo.com.br
webmail.globaldatasolutions.com
mail.greenoliveehr.com
mail.greenpromisefarms.com
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mail.hirozed.me
mail.imoto.hk
mail.improperties.ae
mail.indofen.in
mail.informationsafeguard.com
mail.intellitalent.co
mail.isteam.me
mail.itcass.net
mail.janakibharath.com
mail.keovation.co.za
mail.lamagroup.om
webmail.letsclinica.com.br
mail.livenode.tech
webmail.lmtextileprint.com
mail.loveumagazine.com
mail.lumoa.com
mail.lutonanglingclub.co.uk
mail.macawlimited.com
email.motazhad.com
mail.nbs.lk
mail.nioton.in
mail.orbitalairways.com
email.peakmountain-techsolutions.com
mail.pointsevent.com
login.praxisenterprises.llc
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mail.rajbiosis.com
mail.reshamsutra.com
mail.rewoke.tech
mail.ridoutfamily.us
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mail.slnee.com
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mail.southern.vn
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mail.studio2880.com
correo.subodega.mx
webmail.tanktestingservices.com
mail.technosoftcr.com
mail.terra-isles.com
daak.tresod.com
mail.ubmegypt.com
inbox.ultimatevirtualemployee.com
mail.vecctor.com.co
mail.wiennexindo.com
mail.wizberg-os.com
login.wj-mail.com
mail.wlfddems.org
mail.zenithstrategies-zs.com
mail.zone-gagnon.info