Cached · just now
89/100 SECURITY SCORE

Certificate Information

Subject
CN=mail.cildegua.com
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
January 08, 2026
Valid Until
April 08, 2026 65 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
E4:4D:E3:6F:59:70:5E:D3:34:84:F8:74:A9:91:21:BE:BD:BD:9C:8C:79:59:DC:1E:DA:62:BF:EF:9F:ED:57:21
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.emtecsu.com

Other domains in certificate

mail.a4zconsultants.com
mail.allsunoutdoor.com
mail.artemetic.com
mail.asfaravia.aero
mail.assessor.io
mail.athacuritiba.online
mail.autiam.com
mail.azazy.net
mail.azmep-qa.com
mail.basementanimation.com
mail.bgelectric.com.au
mail.bigblocksolutions.com
workplace.biletinial.com
mail.cafelucuma.com
mail.capilea.hn
mail.carrierneed.site
mail.ceylonblends.com
mail.cganupes.com
mail.charm-kit.com
mail.charmedcleaningsvs.com
mail.cildegua.com
mail.clientsify.com
mail.rolin.co.id
mail.sbuyzone.co.th
mail.kasugi.com.my
mail.tgb.com.sb
mail.content-lab.ai
mail.crownrentalpa.com
mail.deliverymaster.ai
mail.dtxplatform.com
mail.towa.edu.mm
mail.elfahd-trading.com
mail.erpprof.com
mail.fototechnika.com
webmail.globespin.net
mail.grantwell.ca
mail.growthproafrica.com
mail.hawthornecommunityfoundation.org
mail.hnosbenitesperu.com
webmail.home4rn.com
mail.irmaospozzani.com.br
mail.iso-certifications.com
webmail.itera.solutions
mail.jdurham.me
mail.jrcontador.com.br
mail.karposbank.com.br
mail.kuentro.com
webmail.kummeladvogados.com.br
mail.lazonahotel.com
mail.leader-associates.com
mail.lightlevelpsychsolutions.ph
mail.marzafarms.com
mail.mercaexpress.com.co
mail.mrbrandonharris.com
mail.msaudi.me
mail.musespublishers.com
mail.myvasupport.com
mail.namastefurniture.com
mail.nationalprintingpress.com
mail.netcarelifeandhealth.com
mail.njackson.cc
mail.olimarteam.uy
mail.orthoplexsolutions.com
mail.pacta.in
mail.pqmsolutions.com.mx
email.sindico.pro.br
mail.properstudios.com
mail.queercrafters.com
webmail.rreal.com.br
mail.ruiguang-tech.net
mail.seclookup.com
mail.sharetrip.net
mail.shatwi.com
mail.shorthillsholding.com
mail.skyvaero.com
mail.solutioniks.com
mail.sureview.tv
mail.taylorfyr.com
mail.teleste.uy
mail.threesixtylaw.com
mail.trunexa.com
mail.valshark.com
webmail.vcinf.tech
mail.youngsfood.com
email.zirker.io