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: No (10 days till expiration)
Public Key: RSA key size is too small, current industry standard for RSA keys is 2048 bits
Trusted: The end-entity certificate is self-signed
Self-Signed: Yes, the end-entity certificate is self-signed
Chain Issues: The chain doesn't contain any intermediate certificates
Weak signatures: No, certificates sent by the server were not signed utilizing a weak hash function

DNS Information

Resolves To: 31.204.73.120
Reverse IP lookup: 31-204-73-120.bb.cust.telefiber.no.
Nameserver: ns1.p201.dns.oraclecloud.net.
Nameserver: ns2.p201.dns.oraclecloud.net.
Nameserver: ns3.p201.dns.oraclecloud.net.
Nameserver: ns4.p201.dns.oraclecloud.net.

General Information

Common Name: TP-Link
SANs: None
Locality: ShenZhen
Signature Algorithm: sha256WithRSAEncryption
Key Type: RSA
Key size: 1024 bits
Serial Number: b37a25d45472e872
Not Before: Apr 10, 2019 22:00:37 GMT
Not After: Apr 08, 2024 22:00:37 GMT
Number of certs: 1
Revocation Status: Certificate does not supply CA Issuers information
OCSP Stapling: Not Supported
Server: Not Provided
HSTS: Not Supported
HPKP: Not Supported

Chain Information

Certificate # 1 - Common Name: TP-Link

Decode this certificate for verbose information →
Subject Common Name TP-Link
Issuer Common Name TP-Link
Not Before: Apr 10, 2019 22:00:37 GMT
Not After: Apr 08, 2024 22:00:37 GMT
Signature Algorithm: sha256WithRSAEncryption
Serial Number: b37a25d45472e872
SHA1 Fingerprint: 0B:38:3F:07:96:1D:24:B5:45:86:70:BE:1F:39:53:50:A7:52:A1:60
MD5 Fingerprint: 96:10:5D:E9:AA:0C:07:B6:5C:08:F4:0A:D0:00:31:BE

OpenSSL Handshake

depth=0 C = CN, ST = GD, L = ShenZhen, CN = TP-Link
verify error:num=18:self signed certificate
verify return:1
depth=0 C = CN, ST = GD, L = ShenZhen, CN = TP-Link
verify return:1
CONNECTED(00000003)
OCSP response: no response sent
---
Certificate chain
 0 s:C = CN, ST = GD, L = ShenZhen, CN = TP-Link
   i:C = CN, ST = GD, L = ShenZhen, CN = TP-Link
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
---
Server certificate
subject=C = CN, ST = GD, L = ShenZhen, CN = TP-Link

issuer=C = CN, ST = GD, L = ShenZhen, CN = TP-Link

---
No client certificate CA names sent
---
SSL handshake has read 932 bytes and written 528 bytes
Verification error: self signed certificate
---
New, TLSv1.2, Cipher is AES128-GCM-SHA256
Server public key is 1024 bit
Secure Renegotiation IS supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
SSL-Session:
    Protocol  : TLSv1.2
    Cipher    : AES128-GCM-SHA256
    Session-ID: BC2578E03CFA73F9B6C49EAD92E4CA1CBAE879D368FEF1D9DA9FE038F419D14B
    Session-ID-ctx: 
    Master-Key: 1CA97FF6A1295E097DA0078E466C27CC0779368A5350E4EEFD4FDB3F885DD02049A47FA52BF71BB22A0309E05655C373
    PSK identity: None
    PSK identity hint: None
    SRP username: None
    TLS session ticket lifetime hint: 300 (seconds)
    TLS session ticket:
    0000 - 46 cb bd 39 4c 94 fa 7b-93 7a 9a aa aa 20 63 46   F..9L..{.z... cF
    0010 - 3e 77 45 3a bd 26 34 ba-0b c0 74 b6 39 f1 25 71   >wE:.&4...t.9.%q
    0020 - ab 17 d5 4b 8a ae 1c 67-47 95 ca 90 d6 61 d6 5f   ...K...gG....a._
    0030 - 9e 7f 8b 25 c8 94 13 f5-70 9a 6f 68 52 89 b5 df   ...%....p.ohR...
    0040 - a9 db 21 fb 15 2a 36 91-c6 73 63 a2 f3 e5 5a 7c   ..!..*6..sc...Z|
    0050 - f5 a7 21 39 aa e0 49 cf-4c 77 ed 90 cb fb 79 cd   ..!9..I.Lw....y.
    0060 - d7 c3 56 11 e7 fb 8b 01-aa 7d 67 14 f3 50 26 6a   ..V......}g..P&j
    0070 - b5 0c 1b 89 26 da e4 44-b5 fe 03 a6 ad 0e 42 ed   ....&..D......B.
    0080 - ef a2 9b 1e 47 74 fe ce-50 f3 57 f8 9e 77 7c 35   ....Gt..P.W..w|5
    0090 - 7b 31 c0 27 62 29 db d2-b4 93 b7 e8 10 b6 df ec   {1.'b)..........
    00a0 - 1f bc 1a 78 d4 60 c6 9d-d6 60 25 57 83 49 e9 72   ...x.`...`%W.I.r
    00b0 - e3 4b 1b 8c 8f c6 47 4f-41 59 73 b7 07 b2 75 cb   .K....GOAYs...u.

    Start Time: 1711708230
    Timeout   : 7200 (sec)
    Verify return code: 18 (self signed certificate)
    Extended master secret: no
---
DONE