Open
Cached
·
just now
77/100
SECURITY SCORE
Certificate Information
Subject
CN=mathekoenig.com
Issuer
C=US, O=Google Trust Services, CN=WR3
Valid From
December 01, 2025
Valid Until
March 01, 2026
81 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
A5:A7:27:9E:63:5C:3B:07:9C:C6:C1:BE:FA:BD:86:47:07:16:46:E3:43:4E:A4:DC:18:34:EA:7B:00:D6:41:0F
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
Present
max-age=31556926
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
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • 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
100 domains
www.asaa.at
abelanski.dev
agilemeter.io
www.agnostech.in
amparosec.io
uefn.anotherworld.gg
www.astejeservicios.com
benger.biz
bitofhelp.net
www.blackhousegames.nl
boliviapetsupply.com
bondebridge.no
bople.app
direqt.chatbot.gallery
cloudexchange.lk
chat.av-pro.co.il
go.moyamo.co.kr
type.devkids.co.kr
sbbsweb.pmsa.com.vn
commentextractor.com
cord.tech
www.crypto-identity.org
devsauce.io
dinosaurdino.com
www.directdisinfecting.com
energieberatung-irschenberg.de
eportal.epsturf.com
www.firstchoicemerchants.com
flo-codes.xyz
fortunaoliva.es
www.admin.gdzietometro.pl
geniusai.space
ghidetti.com
marketing.godamwale.com
adecco.goodwheel.work
gtaswift.ca
app.gypsian.com
haidangnguyen.de
patient.hellodoctor.com.mx
estate-cms.hicity.world
hydropony.pl
i2i.co.jp
app.immobilers.com.br
manicaa.impactwrap.dev
my.impactwrap.dev
kioskdev.inseat.menu
www.krushikrantibiotech.in
department-of-addition.leanagility.com
www.lesspoly.com
book.littlecitytreat.com
mathekoenig.com
auth.meeples.app
add-stage.meeter.de
meshinfrasoft.com
www.moneytize.me
www.mytechdreams.com
nemocare.in
stp.optimum-transfer.hr
raceday.etchells.org.nz
trellidorservice.oz-tms.com
bt-poker.paul-consultants.de
connect.petleo.app
dev-client.pharm2market.app
qr-demo.posnet.com.au
discuss.rapo.app
asset-management.resre.bm
rutaaccesible.site
v1.rutasegura.co
www.samudera-jaya-sakti.com
spartan.site2020.com
smarttrainschedule.app
sofatv.app
superpenguin-finance.com
krzysztof.szularz.pl
beta-demo.tallyfor.com
tatoonaak.com
link.teamlinkt.com
www.teammaster.in
www.techexpertsceylon.lk
tge.fan
fb.thejaavapot.com
traitte.app
demo-a.travelnow.app
www.triclubchallenge.com
www.tripiandofood.com
nazoclub.tumbleweedjp.info
cfsanjusto.turnosweb.app
tusideasdigitales.online
umanity.io
deepside.usepod.com
ahrs.vidocto.com
qr.visorus.com.mx
waiterprofast-catering.waiterpro.com
www.whatauto.app
www.wildwoodmfg.com
synapse.xourse.com
a.yesodot.app
www.zegetech.com
ads.zeoroute.com
college-demo-experience.zizoapps.com
Other domains in certificate