SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

nfz-opole.pl

SSL/TLS Certificate

WhoisRDAPDNS RecordsCertificateUptimeDiagnosticsHistoryHide Contact Info

SSL/TLS Certificate for nfz-opole.pl

Valid
Issued by (CA)
GlobalSign nv-sa
Subject
imperva.com
Valid from
Jun 4, 2026
Valid until
Sep 2, 2026 (29 days remaining)
Public key
RSA 2048-bit
Serial
01D46C58AD95DBB0090CDC28863CB4FA
SHA-256 fingerprint
49:D7:F5:51:23:C4:A8:11:87:7E:60:45:36:07:E9:19:7D:FD:90:7E:28:88:C0:B9:E4:9B:4E:9C:CF:40:25:89
Chain
GlobalSign Atlas R46 DV TLS CA 2026 Q2 → GlobalSign Root R46 → GlobalSign
Subject Alternative Names (117)
*.ade.gov.pl, *.afs.gov.pl, *.api.poczta-polska.pl, *.aw.gov.pl, *.bip.aw.gov.pl, *.cbz.gov.pl, *.coms.pl, *.czd.pl, *.dawcyszpiku.eu, *.e-deklaracje.gov.pl, *.energiazrolnictwa.pl, *.ezdrp.gov.pl, *.finanse.mf.gov.pl, *.genwywiadu.gov.pl, *.iczmp.edu.pl, *.ikard.pl, *.ios.edu.pl, *.kas.gov.pl, *.kcor.gov.pl, *.kolizjezptakami.pl, *.kprm.gov.pl, *.kss.gov.pl, *.lpr.pl, *.mazowieckie.kas.gov.pl, *.mfipr.gov.pl, *.ms.gov.pl, *.msz.gov.pl, *.mw.wp.mil.pl, *.nac.gov.pl, *.ncn.gov.pl, *.nfz-kielce.pl, *.nfz-lodz.pl, *.nfz-lublin.pl, *.nfz-olsztyn.pl, *.nfz-opole.pl, *.nfz-szczecin.pl, *.nfz-zielonagora.pl, *.nik.gov.pl, *.osuwiska.pgi.gov.pl, *.pism.pl, *.piwet.pulawy.pl, *.polandshiok.sg, *.polskiwywiad.gov.pl, *.psychologiawratownictwie.com.pl, *.rckik-opole.com.pl, *.rckk.rzeszow.pl, *.rejestrytx.gov.pl, *.sar.gov.pl, *.sejm.gov.pl, *.skw.gov.pl, *.sn.pl, *.spartanska.pl, *.strazgraniczna.pl, *.sww.gov.pl, *.train.s46.pl, *.ulc.gov.pl, *.wp.mil.pl, *.wyzwaniechrumasa.org, ade.gov.pl, afs.gov.pl, archiwum.dolnoslaskie.kas.gov.pl, archiwum.lodzkie.kas.gov.pl, archiwum.podlaskie.kas.gov.pl, archiwum.swietokrzyskie.kas.gov.pl, aw.gov.pl, biblioteka.gumed.edu.pl, cbz.gov.pl, coms.pl, czd.pl, dawcyszpiku.eu, digit.pism.pl, e-deklaracje.gov.pl, energiazrolnictwa.pl, ezdrp.gov.pl, genwywiadu.gov.pl, iczmp.edu.pl, imperva.com, ios.edu.pl, irk.wssg.strazgraniczna.pl, kas.gov.pl, kcor.gov.pl, kolejoweabc.pl, kolizjezptakami.pl, kss.gov.pl, maszynista.gov.pl, mazowieckie.kas.gov.pl, msz.gov.pl, nac.gov.pl, ncn.gov.pl, nfz-kielce.pl, nfz-lodz.pl, nfz-olsztyn.pl, nfz-opole.pl, opolskie.kas.gov.pl, pism.pl, polandshiok.sg, polskiwywiad.gov.pl, psychologiawratownictwie.com.pl, rckik-opole.com.pl, rckk.rzeszow.pl, rejestrytx.gov.pl, sandbox-payments-online.poczta-polska.pl, sar.gov.pl, sejm.gov.pl, skw.gov.pl, sn.pl, spartanska.pl, strazgraniczna.pl, sww.gov.pl, szkolenia-topsor.lpr.com.pl, ulc.gov.pl, wp.mil.pl, www.filatelistyka.poczta-polska.pl, www.kolejoweabc.pl, www.maszynista.gov.pl, www2.skw.gov.pl, wyzwaniechrumasa.org

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

Never get surprised by nfz-opole.pl's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch nfz-opole.pl continuously, notifying you the moment anything moves across all three signals:

Uptime

We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.

DNS changes

We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.

TLS certificate

We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.