www.igou5566.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:9f:ee:3e:aa:f9:16:4a:ef:cf:ec:a9:0b:4d:3c:81:b4:9c was issued on by Let's Encrypt.

With 4 subject alternative names this certificate can be used to secure multiple fqdn's. 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=www.igou5566.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:9f:ee:3e:aa:f9:16:4a:ef:cf:ec:a9:0b:4d:3c:81:b4:9c
Serial Number (int): 315758435788856339117655967869257755243676
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 20:46:36:f3:8f:b3:a0:35:29:82:23:ad:65:3b:3b:d5:15:f6:b4:70
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): da:f0:84:30:13:55:a2:0f:eb:a1:58:d0:96:c9:ad:13:78:50:34:b6
Fingerprint (sha256): 57:7d:cc:0d:e9:99:a0:56:0a:ac:13:1b:72:09:61:ac:22:27:18:af:cf:39:37:80:e5:b7:98:1f:83:8a:59:00

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate www.igou5566.com

4

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.igou5566.com

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

igou5566.com
lightfieldholograms.com
www.igou5566.com
www.lightfieldholograms.com

Other certificates including the domain name igou5566.com

(limited to 100 certificates)
www.igou5566.com

Certificate

The complete raw certificate details for www.igou5566.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvSNScYnfE/zoavy3v1FW
ZHtJ9BnEwJLZsi8X5UxC46gxfmEx8pCuMAwvlRRPCfvyCZH/dJVFkcP38DNWtYyc
OFOnL97HqUNe+VbmyamO7nygZ2MXndUDM25tbEaQcO7FbrYTtomv7kEEiwp3c1jP
umDvyBl5hSNUkOKBrt5nH958/2u60Xi34z/5HexfLdRp0CvxMFLaRjer/LsrT+bf
pxynsdMmWuArC6FBx9H46n2daTEr1BnKwZTv9J1oRYo4ToC7+1LXiX7gINdqUWpi
xE9RyxO1w7ijzw+7t0stYEvUaODpgvo9hnK1V3iUOUiAhoDDnbvNFgAML9f33ogS
kQIDAQAB
-----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 315758435788856339117655967869257755243676
 . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-08-28 17:12:34 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-11-26 17:12:34 +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 'www.igou5566.com'
 . . . . . . . . [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 23876457588131188803444264280861198786079163157348297530900555373245548999774272913454740125025753041425067868936349831441747340202264356864813581443145758005575098642595653565254739015353178858388070726611695735418983460977004552082460082535642450964256215956294616112138327088129101343263096754606207324626820063571541570823831800458064146135447737194695859748012555362284369234613991464226433261414632188268196404655744903834545779100280094136832654551854640611066689369574840260177666767091867509837571573957979994882215895368472532978538216681502200630219243873744637787084031422153902113094678593043144492192401
 . . . . . . . . . . . . . . . . . . . . [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)
							204636f38fb3a035298223ad653b3bd515f6b470
 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 (88 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'igou5566.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'lightfieldholograms.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.igou5566.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.lightfieldholograms.com'
 . . . . . . . . . . . . . . . . [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 (69 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 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016cd96de6cb000004030046304402200872184b24159625228409dc676f1eda0cf2d6b59bf31e9b2eb7f3b9ad93ed990220252c4a794c2a3ff3de31b2cc8b85c39c826f275fa0c761973c3cbbbe068056b1007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016cd96de6b90000040300483046022100e6f6632e11bc32452dcd1809d9cdc9f1e801b78adb9f5fe03c957b580a3172bd022100ddc413449a836896288010e1122eb4d5e9524ff463ec18fed95186cf41703af8
 . . . . [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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