SSL Checker

Submit the Hostname and Port in the fields below. This checker supports SNI and STARTTLS.

Report

It's all good. We have not detected any issues.

Hostname:	Matches Common Name or/and SAN
Expired:	No (73 days till expiration)
Public Key:	We were unable to find any issues in the public key of end-entity certificate
Trusted:	Yes, we were able to verify the certificate
Self-Signed:	No, the end-entity certificate is not self-signed
Chain Issues:	No, we were unable to detect any issues in the certificate chain sent by the server
Weak signatures:	No, certificates sent by the server were not signed utilizing a weak hash function
OCSP Status:	OCSP Responder returned "good" status for the end-entity certificate

DNS Information

Resolves To:	94.182.146.186
Reverse IP lookup:	mail.tabnak.ir.
Nameserver:	ns2.iransamaneh.com.
Nameserver:	ns1.iransamaneh.com.

General Information

Common Name:	*.tabnak.ir
SANs:	DNS:*.tabnak.irDNS:tabnak.ir Total number of SANs: 2
Signature Algorithm:	sha256WithRSAEncryption
Key Type:	RSA
Key size:	4096 bits
Serial Number:	61dda4c96dc88d6d5533627050b1ce05
Not Before:	Jul 09, 2023 08:43:26 GMT
Not After:	Jul 08, 2024 08:43:25 GMT
Number of certs:	3
Revocation Status:	good
OCSP Stapling:	Not Supported
Server:	Not Provided
HSTS:	Not Supported
HPKP:	Not Supported

Chain Information

Certificate # 1 - Common Name: *.tabnak.ir

Decode this certificate for verbose information →

Subject Common Name	*.tabnak.ir
Issuer Common Name	Certum Domain Validation CA SHA2
Issuer Organization	Unizeto Technologies S.A.
Not Before:	Jul 09, 2023 08:43:26 GMT
Not After:	Jul 08, 2024 08:43:25 GMT
Signature Algorithm:	sha256WithRSAEncryption
Serial Number:	61dda4c96dc88d6d5533627050b1ce05
SHA1 Fingerprint:	3E:2C:BD:1E:11:D1:83:8D:97:4A:F1:60:2A:0A:4E:72:BE:00:71:49
MD5 Fingerprint:	2F:33:2B:16:7C:79:7D:91:38:AD:FC:94:68:19:49:D6

Certificate # 2 - Common Name: Certum Domain Validation CA SHA2

Decode this certificate for verbose information →

In place?	Yes, this certificate directly certifies the preceding one
Subject Common Name	Certum Domain Validation CA SHA2
Subject Organization	Unizeto Technologies S.A.
Issuer Common Name	Certum Trusted Network CA
Issuer Organization	Unizeto Technologies S.A.
Not Before:	Sep 11, 2014 12:00:00 GMT
Not After:	Jun 09, 2027 10:46:39 GMT
Signature Algorithm:	sha256WithRSAEncryption
Serial Number:	26ddd22b46c9c44d5a694d39807e72ad
SHA1 Fingerprint:	FF:9C:EB:13:C8:3F:15:B8:00:E6:EF:F9:87:B2:C7:2E:01:B4:B3:20
MD5 Fingerprint:	2A:C7:2B:E8:69:16:8B:36:FD:74:E9:30:16:E1:1E:3B

Certificate # 3 - Common Name: Certum Trusted Network CA

Decode this certificate for verbose information →

In place?	Yes, this certificate directly certifies the preceding one
Subject Common Name	Certum Trusted Network CA
Subject Organization	Unizeto Technologies S.A.
Issuer Common Name	Certum Trusted Network CA
Issuer Organization	Unizeto Technologies S.A.
Not Before:	Oct 22, 2008 12:07:37 GMT
Not After:	Dec 31, 2029 12:07:37 GMT
Signature Algorithm:	sha1WithRSAEncryption
Serial Number:	444c0
SHA1 Fingerprint:	07:E0:32:E0:20:B7:2C:3F:19:2F:06:28:A2:59:3A:19:A7:0F:06:9E
MD5 Fingerprint:	D5:E9:81:40:C5:18:69:FC:46:2C:89:75:62:0F:AA:78

OpenSSL Handshake

depth=2 C = PL, O = Unizeto Technologies S.A., OU = Certum Certification Authority, CN = Certum Trusted Network CA
verify return:1
depth=1 C = PL, O = Unizeto Technologies S.A., OU = Certum Certification Authority, CN = Certum Domain Validation CA SHA2
verify return:1
depth=0 CN = *.tabnak.ir
verify return:1
CONNECTED(00000003)
OCSP response: no response sent
---
Certificate chain
 0 s:CN = *.tabnak.ir
   i:C = PL, O = Unizeto Technologies S.A., OU = Certum Certification Authority, CN = Certum Domain Validation CA SHA2
-----BEGIN CERTIFICATE-----
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4QIMY2w9EukgHNouIMYwDLuLjzvM
-----END CERTIFICATE-----
 1 s:C = PL, O = Unizeto Technologies S.A., OU = Certum Certification Authority, CN = Certum Domain Validation CA SHA2
   i:C = PL, O = Unizeto Technologies S.A., OU = Certum Certification Authority, CN = Certum Trusted Network CA
-----BEGIN CERTIFICATE-----
MIIEzjCCA7agAwIBAgIQJt3SK0bJxE1aaU05gH5yrTANBgkqhkiG9w0BAQsFADB+
MQswCQYDVQQGEwJQTDEiMCAGA1UEChMZVW5pemV0byBUZWNobm9sb2dpZXMgUy5B
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-----END CERTIFICATE-----
 2 s:C = PL, O = Unizeto Technologies S.A., OU = Certum Certification Authority, CN = Certum Trusted Network CA
   i:C = PL, O = Unizeto Technologies S.A., OU = Certum Certification Authority, CN = Certum Trusted Network CA
-----BEGIN CERTIFICATE-----
MIIDuzCCAqOgAwIBAgIDBETAMA0GCSqGSIb3DQEBBQUAMH4xCzAJBgNVBAYTAlBM
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03YnnZotBqbJ7DnSq9ufmgsnAjUpsUCV5/nonFWIGUbWtzT1fs45mtk48VH3Tyw=
-----END CERTIFICATE-----
---
Server certificate
subject=CN = *.tabnak.ir

issuer=C = PL, O = Unizeto Technologies S.A., OU = Certum Certification Authority, CN = Certum Domain Validation CA SHA2

---
No client certificate CA names sent
Peer signing digest: SHA256
Peer signature type: RSA-PSS
Server Temp Key: X25519, 253 bits
---
SSL handshake has read 4912 bytes and written 400 bytes
Verification: OK
---
New, TLSv1.3, Cipher is TLS_AES_256_GCM_SHA384
Server public key is 4096 bit
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
Early data was not sent
Verify return code: 0 (ok)
---
DONE