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=4pk1.com
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
February 03, 2026
Valid Until
May 04, 2026 77 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
DA:78:5D:95:70:4E:94:9F:E5:5F:94:A6:8C:94:37:69:6F:E2:48:9F:8C:47:F8:4F:07:9D:BE:3C:62:E9:E5:1B
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
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
mercadodeauto.com *.mercadodeauto.com

Other domains in certificate

4pk1.com *.4pk1.com *.wap.4pk1.com *.ww38.4pk1.com
asiania.com *.asiania.com *.mx4.asiania.com *.random.asiania.com
*.644a2c0c-bc7b-4af0-a39a-53c1996ceb1b.garbagemaga.org garbagemaga.org *.garbagemaga.org
mallusex.com *.mallusex.com *.ravpn.mallusex.com
marulanda.com *.marulanda.com
maruo.com *.maruo.com
massbach.com *.massbach.com
matrix-ace.xyz *.matrix-ace.xyz *.rnyzj.matrix-ace.xyz
medyumlar.com *.medyumlar.com
menopaluu.net *.menopaluu.net
miney.com *.miney.com
minshew.com *.minshew.com
modelingsite.com *.modelingsite.com
mortgageandfinancial.com *.mortgageandfinancial.com
muhittin.com *.muhittin.com
mullady.com *.mullady.com
multiproprieta.com *.multiproprieta.com
musab.com *.musab.com
myasylegal.xyz *.myasylegal.xyz
myconquest.com *.myconquest.com
*.dev-dev.nuwork.de *.dev-e2e.nuwork.de *.dev-hotfix.nuwork.de *.dev-ib.nuwork.de *.dev-stage.nuwork.de *.dev-tg.nuwork.de *.dev-tp.nuwork.de *.dev-tt.nuwork.de *.dev-tw.nuwork.de *.dev.nuwork.de *.infra.nuwork.de nuwork.de *.nuwork.de *.tools.nuwork.de
vn88.luxe *.vn88.luxe *.www.vn88.luxe
*.cnuemj.wsofi.com *.d821215f-d6bc-4f50-9660-60aaa426de39.wsofi.com *.email.wsofi.com *.hostmaster.wsofi.com *.login.wsofi.com *.m.wsofi.com *.mvideo.wsofi.com *.mx.wsofi.com *.oma.wsofi.com *.ppc.wsofi.com *.rds1.wsofi.com *.si.wsofi.com *.smtp01.wsofi.com *.task.wsofi.com *.verespnenvivo.wsofi.com wsofi.com *.wsofi.com *.ww25.wsofi.com *.ww38.wsofi.com *.ww43.wsofi.com *.www.wsofi.com
*.www.zucmg.net zucmg.net *.zucmg.net