narrowstep.com
Issued by R3
About this certificate
This digital certificate with serial number 03:83:fe:ed:7d:3d:8c:1e:2e:90:ab:0c:77:6f:ba:b5:da:54 was issued on by Let's Encrypt.
With 2 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:
- 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=narrowstep.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:83:fe:ed:7d:3d:8c:1e:2e:90:ab:0c:77:6f:ba:b5:da:54Serial Number (int): 306252704887386002798315319853429976062548
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 7b:d8:94:68:05:b1:2d:5a:f0:4f:5d:45:6f:01:3f:21:0a:1c:f7:c1
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): 77:01:62:ad:1a:04:f7:ec:08:fd:93:00:e2:37:f7:e1:f0:8b:77:66
Fingerprint (sha256): 85:85:88:70:a1:69:66:b7:0b:cd:65:0c:31:fe:a4:5c:71:1e:3a:e2:24:db:36:f9:02:04:d9:3b:ee:93:07:31
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate narrowstep.com
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for narrowstep.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
*.narrowstep.com
narrowstep.com
narrowstep.com
Other certificates including the domain name narrowstep.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for narrowstep.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIE+zCCA+OgAwIBAgISA4P+7X09jB4ukKsMd2+6tdpUMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yNDAxMTYwOTQ1MzFaFw0yNDA0MTUwOTQ1MzBaMBkxFzAVBgNVBAMT Dm5hcnJvd3N0ZXAuY29tMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA 50KQY02//Z0WyQ3LzEFdwufrBMfGnbZLeAy1Tw8rb30cTBVavgvc00eTBqNeqqc0 RuApvJbv3eUYVl7OzEGnGzBZaV/fBqDK5/V4NFdE5UWlYnvov5PhP+/WLgEpa80X qMxuVdRsuTGcJVMYRoZFhFNDyyse30rlX2B994hGP92I25k6lHSoHUvbCRC0NO3p +YIqr5rNBy00eowYSAAOtC/aW0BhqCdzJzUbF/k50U7S8ykaeCc+tbS9WNS0ICcU kwamVjOP6KPnehSqYClxe7pfo/VxmvS+eMOCEu9wwhlzWKO95gRhXgcvXrREj5D+ RD8Cdvia4Gd0I7PualKsZQIDAQABo4ICIjCCAh4wDgYDVR0PAQH/BAQDAgWgMB0G A1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1Ud DgQWBBR72JRoBbEtWvBPXUVvAT8hChz3wTAfBgNVHSMEGDAWgBQULrMXt1hWy65Q CUDmH6+dixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUHMAGGFWh0dHA6Ly9y My5vLmxlbmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3IzLmkubGVuY3Iub3Jn LzArBgNVHREEJDAighAqLm5hcnJvd3N0ZXAuY29tgg5uYXJyb3dzdGVwLmNvbTAT BgNVHSAEDDAKMAgGBmeBDAECATCCAQQGCisGAQQB1nkCBAIEgfUEgfIA8AB2AKLi v9Ye3i8vB6DWTm03p9xlQ7DGtS6i2reK+Jpt9RfYAAABjRHgVcgAAAQDAEcwRQIg RAIiYcRAlpEKuG0gepwE0aMw0It7eUITQz5EbhqO6YcCIQCU74S2sEhIFFkH997M R3Hfzs+Q+ZuOWRZI+XFVE/ns0gB2AO7N0GTV2xrOxVy3nbTNE6Iyh0Z8vOzew1FI WUZxH7WbAAABjRHgVbAAAAQDAEcwRQIhAJlEHmZwrGthoxVm3V7Z/1b4j8kmlCx0 /sWstiI/Xsl7AiAaWw5oPbmAB1NKszBAtkmy36/hcSXQ4tUYrGHAafEIyjANBgkq hkiG9w0BAQsFAAOCAQEAeKCQ2ne7LnRGOCuAItmMV2X+69ACzBFC1CQL2/O3AiG7 BsQvAVhD55GF9M7bOPWdMcvQEAaTAwpU0zVZkWY/rPisrHhhhvE6hu+HOjXrFkBU 4clvoO02/abrUCi0iCH4/UChJqJkba8y2ofr70LA7U+QvUsicHQc8IdBSvwT+9By nWsNUTq2Eyhbf7BzHe6UB7+cz4F8+AIfMrjn6aXpBOEe/zCE7E3wNWbVD+B3/yc6 kGHfYImrQLwFaDhboLKI4kz4XIgEce38bfu+ixePML0VJFOFW0uOZ1Xo/z3GXbgg iHiHqsiA3Ib8Aiz12ApL1a94DswJtpwCEPSpWCFz+g== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA50KQY02//Z0WyQ3LzEFd wufrBMfGnbZLeAy1Tw8rb30cTBVavgvc00eTBqNeqqc0RuApvJbv3eUYVl7OzEGn GzBZaV/fBqDK5/V4NFdE5UWlYnvov5PhP+/WLgEpa80XqMxuVdRsuTGcJVMYRoZF hFNDyyse30rlX2B994hGP92I25k6lHSoHUvbCRC0NO3p+YIqr5rNBy00eowYSAAO tC/aW0BhqCdzJzUbF/k50U7S8ykaeCc+tbS9WNS0ICcUkwamVjOP6KPnehSqYClx e7pfo/VxmvS+eMOCEu9wwhlzWKO95gRhXgcvXrREj5D+RD8Cdvia4Gd0I7PualKs ZQIDAQAB -----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 306252704887386002798315319853429976062548 . . . . . . . . [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 2024-01-16 09:45:31 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-15 09:45:30 +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 (2160 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 29193872386446445315960318879490633626667289452353929613698199376893287703248496475040925082900920140277693281836178538829366259561506194341963378123260310344791337738331412999742054385362031807258713461647930753500619027280384199457912761801015654198433842782112736267888252570101091190317209202425292698430634012469713234476162968400699760956634228714517699285662726446617764490968715651938669191561210039085986688804804121836595976196924426670367742601686106538600729957358348971059255982590708533743718921816622503149632991261591856260731598051058252301920054842268465984431498457284514873004168507291524798786661 . . . . . . . . . . . . . . . . . . . . [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) 7bd8946805b12d5af04f5d456f013f210a1cf7c1 . . . . . . . . . . . . . . . . [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 (36 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.narrowstep.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 (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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007600a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018d11e055c80000040300473045022044022261c44096910ab86d207a9c04d1a330d08b7b794213433e446e1a8ee98702210094ef84b6b04848145907f7decc4771dfcecf90f99b8e591648f9715513f9ecd2007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018d11e055b0000004030047304502210099441e6670ac6b61a31566dd5ed9ff56f88fc926942c74fec5acb6223f5ec97b02201a5b0e683db98007534ab33040b649b2dfafe17125d0e2d518ac61c069f108ca . . . . [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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