narrowstep.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:55:dc:15:c9:c8:b7:4b:36:e7:43:f1:98:9a:f6:5b:65:7f 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=narrowstep.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:55:dc:15:c9:c8:b7:4b:36:e7:43:f1:98:9a:f6:5b:65:7f
Serial Number (int): 290553402273533909580023860627902912226687
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: fd:ce:b3:64:0a:f8:e1:4e:7b:ab:ee:61:01:64:f4:5c:c5:1b:7a:80
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 2c:a1:3a:62:2c:47:ad:7c:89:04:72:da:12:70:55:3a:0f:65:cc:cd
Fingerprint (sha256): 2e:ac:7f:3c:8e:67:9d:de:88:81:f2:59:f4:1d:c8:2d:67:87:26:da:2c:cd:bf:07:81:ff:03:4e:d7:31:6b:c4

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 narrowstep.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for narrowstep.com

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

narrowstep.com

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narrowstep.com
narrowstep.com
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sni.cloudflaressl.com
narrowstep.com
narrowstep.com
narrowstep.com

Certificate

The complete raw certificate details for narrowstep.com 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 290553402273533909580023860627902912226687
 . . . . . . . . [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 2020-02-21 08:23:52 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-21 08:23:52 +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 'narrowstep.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 794067500966871190021359863879218560694547764631175961559180984492457993531648020642322475825243071957688637668521439629085704281563907053926449843507927805511608362295219324328191808912052699283976657313894715042482445840299067890935082502131671611673553648942462032926639237342003207900257961443141646013869332537094108447465038741321868634395177606213481797509313271584598009965769217254003282216035137980684394918247142499265572287089292470240967491633735258849841636267979432405968144368746843057371035777728039841523321462155476791826432795336131539302766315560201988172570325071401016393056370267942626674224755690858540626095477633483704861532068321581365815925295686254400501703940316771029387652001049784158029741738580592766274804356165986602246827662605894664310656798423206924271271228115189550116187004184299234136589778266924792768136737541581134023995509348187867976160007324151046351260602795389278565937289545464933284440538158426022524888255373554274101484532060430318415911960314368582005056986379370702970758486979764488088803807712312908533084634031286758721258825406016345083971276696109571683087624171682122906481554333266375752575018077754055104673975652437182244188641957167032010620912743003564758534427641
 . . . . . . . . . . . . . . . . . . . . [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)
							fdceb3640af8e14e7babee610164f45cc51b7a80
 . . . . . . . . . . . . . . . . [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 (18 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'narrowstep.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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e00000170670f79180000040300473045022100ef95cc3f608688cb42f0744b22e6b1572d6b51d623892805726c554e0b7f44df02203cfb666683a4e0b8e3452854625371bfa4623d4f9d5a67ba80c9d3e6f474ac510075006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d91300000170670f79420000040300463044022002449210a318412a3007c964f0ab33c2311baec25abd4b4c0e0c922aab0c942c0220318e502c1d1185e3fd4678d1fe92830cfc164c428530d4916b0528a00d597f9b
 . . . . [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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