chinaspringisd.net

Issued by R3

About this certificate

This digital certificate with serial number 03:d5:53:2a:73:79:76:c6:c7:3b:2d:c7:95:4e:66:dd:e1:81 was issued on by Let's Encrypt.

This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.


We have idenified some issues with this certificate:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=chinaspringisd.net

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:d5:53:2a:73:79:76:c6:c7:3b:2d:c7:95:4e:66:dd:e1:81
Serial Number (int): 333927548291659310761263776935676842205569
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 51:83:d0:13:a1:8f:3f:d9:8c:5b:82:38:46:cf:c3:71:2f:80:3c:63
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 20:c4:6a:8d:20:52:a7:2b:a7:9b:5e:83:27:75:6b:3f:c6:70:6d:d2
Fingerprint (sha256): 39:f0:ff:4b:d5:4e:8a:26:89:47:e6:cd:ce:c0:02:be:35:07:51:f6:f5:09:1a:75:8c:a2:f2:1d:fd:58:a9:e1

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate chinaspringisd.net

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for chinaspringisd.net

Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication

Extensions

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

chinaspringisd.net

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Certificate

The complete raw certificate details for chinaspringisd.net in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIE8DCCA9igAwIBAgISA9VTKnN5dsbHOy3HlU5m3eGBMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yMzExMTkyMjE5MjRaFw0yNDAyMTcyMjE5MjNaMB0xGzAZBgNVBAMT
EmNoaW5hc3ByaW5naXNkLm5ldDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoC
ggEBANDFgNwDZT7MqHWl4ipIhZPTxKJFRDBKtk5YHWjrXBJk9/og116I3dfIG5a+
UX2zox8IX5pw2ZZnknwG2s7F1jAWSRLGl4/OeJ7nKfu3yRAyN+luYJowr+a352At
c6WNL1FRJ5K2NI8sReiWy64IrDmZE6QIe1qYtNo0RIem6CvSQ+gAd3psiBcl6D80
Sbtgb9PuQ04ZbAd4y7utBdspm/iBwDqrjOHeODJmHU4rYKVl5bD75FPiTeSkIg38
04uqWHF6vi1ad4kETdgxOknMon+tmpbwY8/EDV8ResE8F0aDDEs6jDcwLGrZ+Xgs
Gr9TJeSsWOMBVmPT+e0ZvRTHGGsCAwEAAaOCAhMwggIPMA4GA1UdDwEB/wQEAwIF
oDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAd
BgNVHQ4EFgQUUYPQE6GPP9mMW4I4Rs/DcS+APGMwHwYDVR0jBBgwFoAUFC6zF7dY
VsuuUAlA5h+vnYsUwsYwVQYIKwYBBQUHAQEESTBHMCEGCCsGAQUFBzABhhVodHRw
Oi8vcjMuby5sZW5jci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6Ly9yMy5pLmxlbmNy
Lm9yZy8wHQYDVR0RBBYwFIISY2hpbmFzcHJpbmdpc2QubmV0MBMGA1UdIAQMMAow
CAYGZ4EMAQIBMIIBAwYKKwYBBAHWeQIEAgSB9ASB8QDvAHUASLDja9qmRzQP5WoC
+p0w6xxSActW3SyB2bu/qznYhHMAAAGL6eG0VwAABAMARjBEAiBSQ5cow+Lwq7Kp
RJ1t/A9r2/wioK3cqsHHO7Qd9kOtlwIgVspIz+g22qpmojmOeVW5n5+Qiw980zaa
rJiNZXT0arAAdgDuzdBk1dsazsVct520zROiModGfLzs3sNRSFlGcR+1mwAAAYvp
4bSwAAAEAwBHMEUCIDjuPtm6T3+iwPNoGeKoJeqdW9IOGjA5AFzWPFs3xrfGAiEA
wsug6Tc6+iydt80C0qI3/+0NVJZAq/XR4NesmfSFPYYwDQYJKoZIhvcNAQELBQAD
ggEBAA09tfUK2xqiyR8szROMOyUlrgh2G+xxywV9gO+i5l87y28Ra/FydfffHfeX
AUBin9yqBXid2FWQV0fZO1/WQTNgkIsFYaUZW6eCeJ/YRkba7yNNMsdRepHiOJSu
l9SaeYc3VUxHfWbSY391EoCOraSH6QMp8TCBLwTt6awwVaqIz5NVw1sMIZ34pQ+1
gjxsGGZLD3o2YMaApPWjfSEtMd3lKbmigeNrTTkUlNXEutgMbTYqzO/p1GfAQv1s
IM1yBWqFiJsHTV3wawacfCNZ6jSDyC8XvbCGxcXnphRfnh6+qqMGZPzj5EARgQ+q
kwgkRWe46t8OUNmb5rvADpDBjTY=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0MWA3ANlPsyodaXiKkiF
k9PEokVEMEq2TlgdaOtcEmT3+iDXXojd18gblr5RfbOjHwhfmnDZlmeSfAbazsXW
MBZJEsaXj854nucp+7fJEDI36W5gmjCv5rfnYC1zpY0vUVEnkrY0jyxF6JbLrgis
OZkTpAh7Wpi02jREh6boK9JD6AB3emyIFyXoPzRJu2Bv0+5DThlsB3jLu60F2ymb
+IHAOquM4d44MmYdTitgpWXlsPvkU+JN5KQiDfzTi6pYcXq+LVp3iQRN2DE6Scyi
f62alvBjz8QNXxF6wTwXRoMMSzqMNzAsatn5eCwav1Ml5KxY4wFWY9P57Rm9FMcY
awIDAQAB
-----END PUBLIC KEY-----

ASN.1 decoded

 [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2
 . . . . . . . . [c:0|t:2|false] INTEGER 333927548291659310761263776935676842205569
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-19 22:19:24 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-17 22:19:23 +0000 UTC
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'chinaspringisd.net'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption)
 . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 26354959968213444687354686756303025612570860397916194107487971515072851787818699894769751919823930625319732552122483089038062224717410010099566414391350865563116369471870059069219040921459379520536032025400096915243839847214113836274185179373598497415441684566309517831371033062255246011753789856522657226249487608874065746468471966380865122261837889697204430660145774228432122151593467602277756223079287394765130246252916617167460448536294809855503695970962549892318772443047169387159013101255033994566242035453157316500553717191782637167603715864966874082588803180316942488715326777582141032956992030744138995931243
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537

 . . . . . . . . [c:2|t:3|true] ORAddress 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits)
							05a0
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							5183d013a18f3fd98c5b823846cfc3712f803c63
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (73 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r3.o.lencr.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r3.i.lencr.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'chinaspringisd.net'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (12 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef00750048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018be9e1b4570000040300463044022052439728c3e2f0abb2a9449d6dfc0f6bdbfc22a0addcaac1c73bb41df643ad97022056ca48cfe836daaa66a2398e7955b99f9f908b0f7cd3369aac988d6574f46ab0007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018be9e1b4b00000040300473045022038ee3ed9ba4f7fa2c0f36819e2a825ea9d5bd20e1a3039005cd63c5b37c6b7c6022100c2cba0e9373afa2c9db7cd02d2a237ffed0d549640abf5d1e0d7ac99f4853d86
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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