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

Certificate Information

Subject
C=US, ST=New York, L=New York, O=Yahoo Holdings Inc., CN=ystore.tw
Issuer
C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert SHA2 High Assurance Server CA
Valid From
June 25, 2025
Valid Until
December 17, 2025 33 days
Public Key
ECDSA 256 bit (P-256) Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
95:57:51:E4:4F:63:16:27:C0:BC:BC:E4:5A:24:92:8F:E5:98:5C:D8:61:38:38:22:33:21:88:32:CD:A1:F9:B8
Alternative Names
87 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

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

87 domains
*.campaign.yahoo.com.hk yahoo.com.hk *.yahoo.com.hk
*.bc.yahoo.com.tw *.buy.yahoo.com.tw *.campaign.yahoo.com.tw *.monday.com.tw partner.pr.buy.yahoo.com.tw yahoo.com.tw *.yahoo.com.tw
*.engadget.com
*.cmp.p4pnet.net *.cms.by.monday.p4pnet.net
*.abumedia.yahoo.com *.analytics.bid.yahoo.com *.analytics.buy.yahoo.com *.analytics.mall.yahoo.com *.api.udb.yahoo.com au.lifestyle.yahoo.com au.sports.yahoo.com *.bc.yahoo.com *.bid.yahoo.com *.buy.yahoo.com *.campaign.bid.yahoo.com *.charity.yahoo.com *.cmp.shp.yahoo.com *.ec.yahoo.com *.edmbc.mall.yahoo.com *.finance.yahoo.com hk.esports.yahoo.com hk.promotions.yahoo.com *.livechat.yahoo.com *.ltm.buy.yahoo.com *.makers.yahoo.com *.mall.yahoo.com *.media.yahoo.com *.merchant.yahoo.com *.mobi.yahoo.com *.money.yahoo.com *.nevec.yahoo.com *.news.yahoo.com *.operate.buy.yahoo.com *.paas.ec.yahoo.com *.points.yahoo.com *.prime.yahoo.com *.promo.bid.yahoo.com *.promo.yahoo.com *.rcv.mall.yahoo.com *.sc.mall.yahoo.com *.shp.yahoo.com *.smartr.yahoo.com *.stock.yahoo.com *.supplier.yahoo.com *.tns.nevec.yahoo.com *.trendr.yahoo.com *.tv.yahoo.com *.tw.buy.yahoo.com tw.campaign.money.yahoo.com *.tw.campaign.yahoo.com tw.edit.finance.yahoo.com tw.edit.listing.yahoo.com tw.emarketing.yahoo.com tw.esports.yahoo.com tw.linkspot.search.yahoo.com tw.live.yahoo.com *.tw.mall.yahoo.com tw.partner.buy.yahoo.com tw.payment.charity.yahoo.com tw.sales.emarketing.yahoo.com tw.ysm.emarketing.yahoo.com *.usedcar.yahoo.com *.user.mall.yahoo.com *.video.yahoo.com *.youcard.yahoo.com
hk.celebrity.yahoo.net hk.emarketing.yahoo.net hk.lifestyle.yahoo.net hk.promotion.yahoo.net hk.promotions.yahoo.net hk.realestate.yahoo.net *.m.tw.campaign.yahoo.net *.tw.campaign.yahoo.net
ybid.tw
tw.ptnr.yimg.com *.yimg.com
yshop.tw
ystore.tw