zajac.boston

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:6e:07:5b:2a:f1:84:b5:29:16:81:f0:36:0f:6a:5c:26:78 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=zajac.boston

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:6e:07:5b:2a:f1:84:b5:29:16:81:f0:36:0f:6a:5c:26:78
Serial Number (int): 298777696122564853551477276422803554051704
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: a0:ea:f6:85:ad:6e:9a:e2:fb:12:de:0a:4f:f4:0e:20:7b:84:d8:e0
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 6f:bb:03:ac:f6:4f:d0:b4:ca:bc:11:1d:bd:6d:f9:b6:f7:c4:a9:04
Fingerprint (sha256): a4:81:a9:0f:af:3e:4f:60:3a:1d:97:77:c8:f2:ba:1a:f2:05:92:e4:a3:59:99:4a:54:01:5a:ce:0c:7a:92:ac

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 zajac.boston

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for zajac.boston

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

zajac.boston

Other certificates including the domain name zajac.boston

(limited to 100 certificates)

Certificate

The complete raw certificate details for zajac.boston 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 298777696122564853551477276422803554051704
 . . . . . . . . [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 2020-01-11 18:33:14 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-10 18:33:14 +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 'zajac.boston'
 . . . . . . . . [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 982412848229493074414131340053614532638388281394748427845662437168790714013280015259149058996949187930456275975638499605198437292294162054513239945945017766448489268705887985073848296715192568511349429246811616315906371030290964052568356114292910541653724607259979875932227462494269635980052202205442429019142727124730980560973880926679063151350674158692483852820935530619062918480400442662254290480251192136666566665352240777703563830039387504315918837198271894049069287934638593785344957859246301776859691523618838180659715706403458537019036157656954585098225286612476388395477187462387692524305572980554538177649583224222691360008535076451248818729807591055633530778810621729903039459382255369758108064086841385569570121315052227737654574794648273604578572319642976086225633988986849839310407067276921436004225168797107105134868456807670694466178192604804298630565667750566002481897482271151805946256225455463903070473049469895690282043973420929634526502960973402673902872949474506696933451351347027856903170336125270236194485917594810277692525904099599456800798161427201275546528631166823688654958657374908813294994832720188308836199482249096996945078000802735877724592815006852305830138381403201210443992340976527607369465407341
 . . . . . . . . . . . . . . . . . . . . [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)
							a0eaf685ad6e9ae2fb12de0a4ff40e207b84d8e0
 . . . . . . . . . . . . . . . . [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 (16 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'zajac.boston'
 . . . . . . . . . . . . . . . . [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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f9618a36c000004030046304402204c26ed9ea1ec3040e49ba58c3615ac0fca0dabf5d25acad393c46abbb45723a5022035fbdafb34ff0ac7d9e17cd7e76322e53ee6380206e10b5e1daa9c2a4b3b4c7c0075006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016f9618a3db000004030046304402205a5965b0b67871128c58ab6b3f7f8862687dd7424e5eba4c97e8054af477ff0a02200461a9a55a69548c1fef17bbe68f2382bd00d4d25ef8c94cfc785a038b8087a7
 . . . . [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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