Namecheap.com

SSL Checker

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

Report

Hostname: Doesn't match Common Name or/and SANs
Expired: Yes (expired 178 days ago)
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

DNS Information

Resolves To: 45.119.84.172
Reverse IP lookup: cp-apac08.hvn.vn.
Nameserver: z.hkda.vn.
Nameserver: y.hkda.vn.
Nameserver: x.hkda.vn.

General Information

Common Name: cox.vn
SANs: DNS:adb.vnDNS:adf.vnDNS:adn.vnDNS:afc.vnDNS:agg.vnDNS:aig.vnDNS:ake.vnDNS:akg.vnDNS:alt.vnDNS:alu.vnDNS:alx.vnDNS:amp.vnDNS:ano.vnDNS:apb.vnDNS:apu.vnDNS:aws.vnDNS:axa.vnDNS:axe.vnDNS:bax.vnDNS:bbc.vnDNS:bbg.vnDNS:bch.vnDNS:bdg.vnDNS:bec.vnDNS:bmv.vnDNS:bnc.vnDNS:bop.vnDNS:bow.vnDNS:bpc.vnDNS:bpq.vnDNS:bqc.vnDNS:bqg.vnDNS:bsc.vnDNS:btu.vnDNS:btx.vnDNS:bua.vnDNS:bug.vnDNS:bvh.vnDNS:cav.vnDNS:cbe.vnDNS:cdg.vnDNS:cdl.vnDNS:cdp.vnDNS:ceu.vnDNS:cgc.vnDNS:cgo.vnDNS:chv.vnDNS:ckg.vnDNS:clb.vnDNS:clc.vnDNS:clg.vnDNS:cnb.vnDNS:cow.vnDNS:cox.vnDNS:cpe.vnDNS:cpx.vnDNS:cqg.vnDNS:ctg.vnDNS:cub.vnDNS:cut.vnDNS:cxc.vnDNS:cxg.vnDNS:dau.vnDNS:day.vnDNS:dbg.vnDNS:def.vnDNS:dex.vnDNS:dgc.vnDNS:dkc.vnDNS:dkg.vnDNS:dma.vnDNS:dmp.vnDNS:dnf.vnDNS:dnt.vnDNS:dpb.vnDNS:dqg.vnDNS:drg.vnDNS:dup.vnDNS:dut.vnDNS:dvc.vnDNS:dvr.vnDNS:dxv.vnDNS:edf.vnDNS:efe.vnDNS:epu.vnDNS:ext.vnDNS:exu.vnDNS:eyp.vnDNS:fai.vnDNS:fcb.vnDNS:fcn.vnDNS:fdg.vnDNS:fei.vnDNS:fet.vnDNS:fhg.vnDNS:fic.vnDNS:fim.vnDNS:mail.url.com.vnDNS:url.com.vnDNS:www.url.com.vn Total number of SANs: 100
Signature Algorithm: sha256WithRSAEncryption
Key Type: RSA
Key size: 2048 bits
Serial Number: 3f08e138c0423118ae807b0a43b9779b6fb
Not Before: Jul 06, 2023 11:43:51 GMT
Not After: Oct 04, 2023 11:43:50 GMT
Number of certs: 3
Revocation Status: This check is not applicable to expired certificates
OCSP Stapling: Not Supported
Server: LiteSpeed
HSTS: Not Supported
HPKP: Not Supported

Chain Information

Certificate # 1 - Common Name: cox.vn

Decode this certificate for verbose information →
Subject Common Name cox.vn
Issuer Common Name R3
Issuer Organization Let's Encrypt
Not Before: Jul 06, 2023 11:43:51 GMT
Not After: Oct 04, 2023 11:43:50 GMT
Signature Algorithm: sha256WithRSAEncryption
Serial Number: 3f08e138c0423118ae807b0a43b9779b6fb
SHA1 Fingerprint: 69:76:F8:CA:1C:90:44:AF:69:DC:31:3D:48:11:29:8C:55:A1:00:78
MD5 Fingerprint: A3:BB:CF:63:4C:2D:3C:78:07:EB:40:13:C6:05:48:0D

Certificate # 2 - Common Name: R3

Decode this certificate for verbose information →
In place? Yes, this certificate directly certifies the preceding one
Subject Common Name R3
Subject Organization Let's Encrypt
Issuer Common Name ISRG Root X1
Issuer Organization Internet Security Research Group
Not Before: Sep 04, 2020 00:00:00 GMT
Not After: Sep 15, 2025 16:00:00 GMT
Signature Algorithm: sha256WithRSAEncryption
Serial Number: 912b084acf0c18a753f6d62e25a75f5a
SHA1 Fingerprint: A0:53:37:5B:FE:84:E8:B7:48:78:2C:7C:EE:15:82:7A:6A:F5:A4:05
MD5 Fingerprint: E8:29:E6:5D:7C:43:07:D6:FB:C1:3C:17:9E:03:7A:36

Certificate # 3 - Common Name: ISRG Root X1

Decode this certificate for verbose information →
In place? Yes, this certificate directly certifies the preceding one
Subject Common Name ISRG Root X1
Subject Organization Internet Security Research Group
Issuer Common Name DST Root CA X3
Issuer Organization Digital Signature Trust Co.
Not Before: Jan 20, 2021 19:14:03 GMT
Not After: Sep 30, 2024 18:14:03 GMT
Signature Algorithm: sha256WithRSAEncryption
Serial Number: 4001772137d4e942b8ee76aa3c640ab7
SHA1 Fingerprint: 93:3C:6D:DE:E9:5C:9C:41:A4:0F:9F:50:49:3D:82:BE:03:AD:87:BF
MD5 Fingerprint: C1:E1:FF:07:F9:F6:88:49:82:74:D1:A1:80:53:EA:BF

OpenSSL Handshake

depth=2 C = US, O = Internet Security Research Group, CN = ISRG Root X1
verify return:1
depth=1 C = US, O = Let's Encrypt, CN = R3
verify return:1
depth=0 CN = cox.vn
verify error:num=10:certificate has expired
notAfter=Oct  4 11:43:50 2023 GMT
verify return:1
depth=0 CN = cox.vn
notAfter=Oct  4 11:43:50 2023 GMT
verify return:1
CONNECTED(00000003)
OCSP response: no response sent
---
Certificate chain
 0 s:CN = cox.vn
   i:C = US, O = Let's Encrypt, CN = R3
-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----
 1 s:C = US, O = Let's Encrypt, CN = R3
   i:C = US, O = Internet Security Research Group, CN = ISRG Root X1
-----BEGIN CERTIFICATE-----
MIIFFjCCAv6gAwIBAgIRAJErCErPDBinU/bWLiWnX1owDQYJKoZIhvcNAQELBQAw
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nLRbwHOoq7hHwg==
-----END CERTIFICATE-----
 2 s:C = US, O = Internet Security Research Group, CN = ISRG Root X1
   i:O = Digital Signature Trust Co., CN = DST Root CA X3
-----BEGIN CERTIFICATE-----
MIIFYDCCBEigAwIBAgIQQAF3ITfU6UK47naqPGQKtzANBgkqhkiG9w0BAQsFADA/
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9MUgNTP52GE24HGNtLi1qoJFlcDyqSMo59ahy2cI2qBDLKobkx/J3vWraV0T9VuG
WCLKTVXkcGdtwlfFRjlBz4pYg1htmf5X6DYO8A4jqv2Il9DjXA6USbW1FzXSLr9O
he8Y4IWS6wY7bCkjCWDcRQJMEhg76fsO3txE+FiYruq9RUWhiF1myv4Q6W+CyBFC
Dfvp7OOGAN6dEOM4+qR9sdjoSYKEBpsr6GtPAQw4dy753ec5
-----END CERTIFICATE-----
---
Server certificate
subject=CN = cox.vn

issuer=C = US, O = Let's Encrypt, CN = R3

---
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 5250 bytes and written 398 bytes
Verification error: certificate has expired
---
New, TLSv1.3, Cipher is TLS_AES_256_GCM_SHA384
Server public key is 2048 bit
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
Early data was not sent
Verify return code: 10 (certificate has expired)
---
DONE