www.947.me

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:05:e2:3c:da:b9:6d:01:2b:27:b7:35:8d:61:5b:7d:f8:26 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=www.947.me

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:05:e2:3c:da:b9:6d:01:2b:27:b7:35:8d:61:5b:7d:f8:26
Serial Number (int): 263338991131000574274116328268187935045670
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: c5:cc:a8:05:f1:c0:18:c0:e7:38:41:f3:9c:e9:88:d8:5c:47:3c:87
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 84:1b:e0:83:2f:b3:2c:04:66:81:73:d7:a9:e8:97:2d:a2:3f:b7:af
Fingerprint (sha256): 20:aa:05:0b:08:4a:99:f8:f5:51:1b:33:6c:42:6e:b3:58:1d:5b:3a:aa:08:b5:7c:40:35:bc:09:e5:5d:8a:71

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.947.me

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.947.me

Public Key Algorithm

RSA

Key Size

4096

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

www.947.me

Other certificates including the domain name 947.me

(limited to 100 certificates)
947.me
947.me
947.me
www.947.me
intermediating.ca
www.947.me
amamioshimasouthern.bible
947.me
947.me
www.947.me
947.me
947.me
www.947.me
947.me
www.947.me
947.me
www.947.me
resnet.world

Certificate

The complete raw certificate details for www.947.me in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 263338991131000574274116328268187935045670
 . . . . . . . . [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 2019-11-29 12:13:03 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-27 12:13:03 +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.947.me'
 . . . . . . . . [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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 677254178206601435015536835431561019037002489526290340153191887500913148881065998074595929031731221456448461676490598394700184897738466498586885729097391743604408542910439643235496950651066048954229340791146096367077670263854382921962135496959716285744967689272186771323888796422898572400929973359475291008433428986380038787089958803034204179401021502965734042426136247535523016709562471618034725298305202426881382404764966326801677757493246446804860518324991886462288752037644937809767504348037242265219971721827853233058195853279761035555264856367479510618440498774450840714614154143124765749118380951563010363807701872001275679499577659348246332748135333522620469041946193032077436188760766646385403947744714997815343234103987534764628400648466652247016795583560476312222824602665220604622377710514576083586964371336956651922941278404467212888401288731821604858033874148630137846223041473203483281570832974538982136438356270986163818165323941710605532086517515340594276606133229176201175974472575006753964025991793041162452782035205349182801898692405213430920370722377921545628777237700819018048489940694319935633841511418766950455594814317687170744827403476310950847449339998783480911420948151051470843386895188601530955476328869
 . . . . . . . . . . . . . . . . . . . . [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)
							c5cca805f1c018c0e73841f39ce988d85c473c87
 . . . . . . . . . . . . . . . . [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 (14 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.947.me'
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016eb74b1eae000004030046304402201592cb5842de849ba52df9cca537e1750d25d30a688fe518c4d6f26b96d3c50d02207212afaf8ca96cb3cafcfca87f0513f3a19aa9be40abe8fdfa62f7753061b2f1007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016eb74b1ead0000040300473045022100972fe4dc0d4702b5542bdd2da3806aa2836fab43536f8bdeafb2f7274ec2db08022024856d4b6f31a79a376eb59f3d000058b12c6f4925c6e8a784d232023ebb1e38
 . . . . [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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