DNS Gurus
Open Cached · just now
89/100 SECURITY SCORE

Certificate Information

Subject
C=US, ST=New York, L=New York, O=Yahoo Holdings Inc., CN=src6.yahoo.com
Issuer
C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert SHA2 High Assurance Server CA
Valid From
July 08, 2025
Valid Until
December 31, 2025 48 days
Public Key
ECDSA 256 bit (P-256) Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
26:6F:51:AF:28:B0:B0:2A:A3:96:AF:D2:A9:2A:FE:10:46:6F:2B:83:98:B8:04:F5:EF:BB:9C:12:1D:C5:6B:FC
Alternative Names
92 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
Present
max-age=31536000
Content-Security-Policy
Basic
script-src
X-Frame-Options
Excellent
DENY
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Present
origin-when-cross-origin
Permissions-Policy
Missing
Not configured
Recommendations
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • Improve CSP by adding more specific directives and removing 'unsafe-inline'
  • • 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

92 domains
altomail.com www.altomail.com

Other domains in certificate

alephd.com
alephd.fr
aol.ca
aol.co.uk
aol.com corp.aol.com mail.latino.aol.com
webmail.aol.com.br
aol.de
aol.fr sfrclient.welcome.aol.fr
aol.jp
beboundless.jp
brightroll.com www.brightroll.com
m.order.yahoo.com.tw
csi.com www.csi.com
engadget.com
gamedailyxl.com www.gamedailyxl.com
gamerfeed.com www.gamerfeed.com
gamescanvas.com www.gamescanvas.com
gamesdomain.com www.gamesdomain.com
deals.gdgt.com
joystiq.com
luxist.com
makers.com
money-a2z.com
netdeals.com
netfind.com
helpisp.netscape.com netscape.com www.netscape.com
oath.com
parentdish.ca
pets.world
ryotstudio.co.uk
see-it.live
shelterpop.com
shopfone.com
sport-king.com
streampad.com
stylelist.com
tech24.deals
tech247.co
thatsfit.ca
thegifts.co
theparanoids.com www.theparanoids.com
think24-7.com
uk.360.yahoo.com
blog.postmaster.verizonmedia.com maw-looker-api.analytics.verizonmedia.com maw.analytics.verizonmedia.com
viral.site
broman.vzbuilders.com
when.com
wmconnect.com
wow.com
att.my.yahoo.com au.be.yahoo.com au.solutions.yahoo.com dns.ops.yahoo.com hk.ent.yahoo.com hk.mobi.yahoo.com hk.smartr.yahoo.com hk.youcard.yahoo.com id.berita.yahoo.com id.omg.search.yahoo.com kr.edit.billing.yahoo.com kr.img.search.yahoo.com mando.data.yahoo.com no.profiles.yahoo.com src6.yahoo.com tw.mobi.yahoo.com tw.smartr.yahoo.com tw.youcard.yahoo.com www.ar.yahoo.com
yahoo.dev
tw.discount.yahoo.net
www.yahooforcreators.com yahooforcreators.com
www.yahoogames.com yahoogames.com
www.yahoogamez.com yahoogamez.com