www.crossbracelets.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:8b:09:b7:1d:6e:d6:b3:00:0a:5f:2c:d5:ee:23:6b:4d: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=www.crossbracelets.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:8b:09:b7:1d:6e:d6:b3:00:0a:5f:2c:d5:ee:23:6b:4d:7f
Serial Number (int): 395761306568310031696699147612895144791423
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 70:bd:fb:e5:fe:a9:1f:f1:ff:30:7e:36:46:f7:f7:c9:7c:c4:f7:b7
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 1e:bd:85:5a:b5:94:a3:33:77:59:9c:14:57:c0:57:4f:34:90:1b:42
Fingerprint (sha256): 7b:87:3b:61:b3:7d:db:1b:05:e9:53:22:47:68:7d:fb:03:c1:7c:5d:3a:2c:cd:47:8a:97:58:fc:23:a5:97:50

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.crossbracelets.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.crossbracelets.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

www.crossbracelets.com

Other certificates including the domain name crossbracelets.com

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEApzX2r8GlWUGHVmEOBZSQ
NOZ8m0FfLQN35K0qgyvzNqYj3C4utk6Q/LwiuAPULiqJqpTDRNcJfsgNe/vKLxIm
hLE4k81EbSC3+xCqRwBC5BEQX6RnbgH70RY1yZwX9XO6/tfaRJ0yNAlatti9Xpgx
fG31ANFGhrlgy/i+UafLyeLqCRhpiN+pSE/bq84gM9BGhW+vTeLb9aAekQpPFPLc
l28ZdLleDjEW9WPKYbRECTWdMUvthzBwtaMQ69c43N99gdp5O4N184eChvRnA+kp
GGkpaijlFMbvjqYHZJxjivTRB7Rk6MWHU3q4iF+tG7DXKNmu5Z0L96zK9mmxpdsJ
3HsjptijCsQTElDR8vKBdCsJp8p89CTJjBB/g9iEZY3q++iFoGcnCzf0TiPmCyAA
fECiVFo/fUXOY6wNR4DbQ9wFynxsc7ncHv71tJTPZLGKJlmvZg6NFKbsgjoDc+Gz
TxygcGnpEvNIxlSQLJTGAuG/UfaZnxqydHfv4kpG2JLKSWXi3zUVnUzjwFTm61Wa
a/s0eIlehjTlynDyVYoJXv2hbdC+qvLfXb4OO1Ii0cgbXUCvKtLVySXalZZhjWfy
G5vCWZ6E52f5LFxJrtNSU+0dPoLwDkwFAcsA2BXdUvEbyAsvZKnQhbSthqF94q9j
coIvnvZWEv2KhmPbvr2kuBsCAwEAAQ==
-----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 395761306568310031696699147612895144791423
 . . . . . . . . [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 2020-03-18 13:02:35 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-16 13:02:35 +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.crossbracelets.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 682160529513617750697386489761285262496714541060758759779809277419047475322105880487463584323003169270564427243329982726870623590357247109179654882733155425715382652750962205322756114433608015159599400411551595204447382892510777903198643716565270640510543130946048756664052906737753931841286896095473452242767664536050366939357545433335678201154454710345169049199565524670747546402603130190412102169472847675697525524622895737243636848168990536795955104275358726301040917787687676225634577902941801183466751979086680156950389485488400820446635191322526064879167738727519772240557455600228183070476700491676777353048263973382562261431690965717533599919767558561601592526339039167534658798279929252334781817515673066083143600340147079111019417680538250388003866176950160496907139020747416031961899956065410601068688610142102205103085172067044185383944789412393848448808199618795631405383682033626169266525002338505903883067643789745868103672068163416302298765271929395218973839324864408199886292377578371857756062284156466858521730846528700409399435656679451261635874364164518508573928389772109343045947481014259509614436496239824162875139922198392502023410465925219904938522697987746322268448521261447211454305764554836412759250614299
 . . . . . . . . . . . . . . . . . . . . [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)
							70bdfbe5fea91ff1ff307e3646f7f7c97cc4f7b7
 . . . . . . . . . . . . . . . . [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 (26 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.crossbracelets.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)
							00f0007600e712f2b0377e1a62fb8ec90c6184f1ea7b37cb561d11265bf3e0f34bf241546e00000170edf3fe55000004030047304502204946c620c24a5913dac6fb2dd29880942067e580d6dd056298535a7bc7bd5185022100ecb1431c22805959b21984d78e17cb575ba99b7b2374a39f370fb9621b1c71ef007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e00000170edf3fe4b0000040300473045022100e0eb427709fb3db390b00a40dbcf3623a779515be91764b1c553edc62e01a9160220171983b948701b2c8fbb8022452079bf148956acffb62fa802e0de1a83a2e2a8
 . . . . [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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