DNS Gurus
Open Cached · just now
81/100 SECURITY SCORE

Certificate Information

Subject
CN=oem.com.mx
Issuer
C=US, O=Amazon, CN=Amazon RSA 2048 M01
Valid From
November 11, 2025
Valid Until
December 10, 2026 394 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
FF:BF:26:9B:91:AB:3B:93:E0:80:8E:83:1B:48:AF:FA:43:EE:08:39:97:E2:0B:A3:57:DA:36:1B:9C:17:42:13
Alternative Names
90 domains

Security Configuration

TLS Protocols
TLS 1.0 TLS 1.1 TLS 1.2 TLS 1.3
Forward Secrecy
Supported (Modern clients use PFS)
Warnings
  • • TLS 1.1 is deprecated and should be disabled
  • • TLS 1.0 is deprecated and should be disabled

HTTP Security Headers

Status
Strict-Transport-Security
Excellent
max-age=63072000; includeSubDomains; preload
Content-Security-Policy
Weak
upgrade-insecure-requests
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Significantly strengthen CSP directives
  • • 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
elheraldodetabasco.com.mx www.elheraldodetabasco.com.mx

Other domains in certificate

diariodelsur.com.mx www.diariodelsur.com.mx
diariodequeretaro.com.mx www.diariodequeretaro.com.mx
diariodexalapa.com.mx www.diariodexalapa.com.mx
elheraldodechiapas.com.mx www.elheraldodechiapas.com.mx
elheraldodechihuahua.com.mx www.elheraldodechihuahua.com.mx
elheraldodejuarez.com.mx www.elheraldodejuarez.com.mx
eloccidental.com.mx www.eloccidental.com.mx
elsoldeacapulco.com.mx www.elsoldeacapulco.com.mx
elsoldecordoba.com.mx www.elsoldecordoba.com.mx
elsoldecuautla.com.mx www.elsoldecuautla.com.mx
elsoldecuernavaca.com.mx www.elsoldecuernavaca.com.mx
elsoldedurango.com.mx www.elsoldedurango.com.mx
elsoldehermosillo.com.mx www.elsoldehermosillo.com.mx
elsoldehidalgo.com.mx www.elsoldehidalgo.com.mx
elsoldeirapuato.com.mx www.elsoldeirapuato.com.mx
elsoldelalaguna.com.mx www.elsoldelalaguna.com.mx
elsoldelbajio.com.mx www.elsoldelbajio.com.mx
elsoldelcentro.com.mx www.elsoldelcentro.com.mx
elsoldeleon.com.mx www.elsoldeleon.com.mx
elsoldemazatlan.com.mx www.elsoldemazatlan.com.mx
elsoldemexico.com.mx www.elsoldemexico.com.mx
elsoldemorelia.com.mx www.elsoldemorelia.com.mx
elsoldeorizaba.com.mx www.elsoldeorizaba.com.mx
elsoldeparral.com.mx www.elsoldeparral.com.mx
elsoldepuebla.com.mx www.elsoldepuebla.com.mx
elsoldesalamanca.com.mx www.elsoldesalamanca.com.mx
elsoldesanjuandelrio.com.mx www.elsoldesanjuandelrio.com.mx
elsoldesanluis.com.mx www.elsoldesanluis.com.mx
elsoldesinaloa.com.mx www.elsoldesinaloa.com.mx
elsoldetampico.com.mx www.elsoldetampico.com.mx
elsoldetijuana.com.mx www.elsoldetijuana.com.mx
elsoldetlaxcala.com.mx www.elsoldetlaxcala.com.mx
elsoldetoluca.com.mx www.elsoldetoluca.com.mx
elsoldetulancingo.com.mx www.elsoldetulancingo.com.mx
elsoldezacatecas.com.mx www.elsoldezacatecas.com.mx
elsoldezamora.com.mx www.elsoldezamora.com.mx
elsudcaliforniano.com.mx www.elsudcaliforniano.com.mx
la-prensa.com.mx www.la-prensa.com.mx
lavozdelafrontera.com.mx www.lavozdelafrontera.com.mx
noticiasdelsoldelalaguna.com.mx www.noticiasdelsoldelalaguna.com.mx
noticiasvespertinas.com.mx www.noticiasvespertinas.com.mx
oem.com.mx www.oem.com.mx
periodicoelmexicano.com.mx www.periodicoelmexicano.com.mx
tribunadesanluis.com.mx www.tribunadesanluis.com.mx