smartforum.co

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:71:12:e7:2a:ef:0c:dd:b3:45:0d:99:44:11:3b:5d:c4:60 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=smartforum.co

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:71:12:e7:2a:ef:0c:dd:b3:45:0d:99:44:11:3b:5d:c4:60
Serial Number (int): 386926177584406199022332118850158601290848
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 4c:72:3b:f5:70:d8:51:e2:b1:32:5f:ec:79:a7:eb:7f:98:01:91:5c
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 2f:4b:84:4f:70:66:d9:75:fb:ea:a4:a8:3a:b4:14:8a:b4:40:18:b8
Fingerprint (sha256): ef:a2:5b:b4:47:33:a0:6f:16:48:cf:0d:ac:8c:7b:e7:de:63:4e:f9:69:42:90:17:94:74:57:4a:7e:c5:c9:25

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 smartforum.co

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for smartforum.co

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

smartforum.co

Other certificates including the domain name smartforum.co

(limited to 100 certificates)
smartforum.co
smartforum.co
smartforum.co
www.smartforum.co
smartforum.co
smartforum.co

Certificate

The complete raw certificate details for smartforum.co 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 386926177584406199022332118850158601290848
 . . . . . . . . [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 2019-12-13 19:38:51 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-12 19:38:51 +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 'smartforum.co'
 . . . . . . . . [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 730324573743680464016275799271025284144675387603958585958811807651713720263738640512235920297096751753734496046074900069686627836715454417334364619461099948069053149850538434577656790946032747025795624509975759316224899070614022451439198960519701812258496943488827994767334979670012818004714718470739866300533433381345618920420460311619663149175536346863536454499502739298092841273399544871671478667388213345597061363353208113541297586368792638869791408907712840245808660867150366265320481837984362721808501380869834303278113785118795829190238828983293550628224825132461712671046359701348255982278852139777966371080869883434378657680140144687118742369845909577989206452922136775846300368658988770108547060398007825060309662399623716647490314161158621029517112121524950401919980497652075423006104875939310223836776363965257026404307380429730943751151247120424300352751700531580922424096957643236095998359526018005130350743062980482334456994035043032170236249308004214512945883588437512409677003422209618818263079311437267193712328196733703899786332478941804017262959909748344027760079633771057278011710191137122824069264651454188391564642756759021171314659745414212730691987042740374637363412425754270339011713822750306532147361557553
 . . . . . . . . . . . . . . . . . . . . [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)
							4c723bf570d851e2b1325fec79a7eb7f9801915c
 . . . . . . . . . . . . . . . . [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 (17 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'smartforum.co'
 . . . . . . . . . . . . . . . . [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)
							00ef0075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f00fc4a03000004030046304402204f7a454371fbfb4b2735a88d2dd009020a36912d16aa4a17efcc61718817912f022022bd90d11ea5e2b17cc2fefc8bebf0caae3a26661a370312801944e67eb4758000760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f00fc4a290000040300473045022100abc631689ac5a2f4fb3be5f4e6975ef5e57f3dd7b3c99a080c28f4fd8be26c18022078a5a02f24ddf54d34f17c585838b8a0d4c6140aa0376f9e774eda9bb6888188
 . . . . [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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