www.zajac.boston
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:61:6a:84:82:22:68:b4:80:a3:15:9b:f4:3c:9d:75:df:75 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.zajac.boston
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:61:6a:84:82:22:68:b4:80:a3:15:9b:f4:3c:9d:75:df:75Serial Number (int): 294485833576789709230936184312073270189941
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: fb:fc:2d:9f:aa:7a:3f:75:f5:93:98:37:0b:a5:7f:2f:f3:ef:5f:b1
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 98:29:66:52:7b:a6:9c:d9:0f:80:1e:df:06:f4:a4:f7:01:77:6b:3f
Fingerprint (sha256): 93:9e:d4:c8:0d:bf:f9:b0:4c:ee:94:43:5d:b6:44:69:4e:5d:23:bb:4b:5c:a5:00:6e:45:d7:d4:a4:47:3d:ef
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate www.zajac.boston
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.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
www.zajac.boston
Other certificates including the domain name zajac.boston
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.zajac.boston in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGWDCCBUCgAwIBAgISA2FqhIIiaLSAoxWb9Dyddd91MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAyMjQxODAzMTFaFw0y MDA1MjQxODAzMTFaMBsxGTAXBgNVBAMTEHd3dy56YWphYy5ib3N0b24wggIiMA0G CSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQCktWf+sChTUWE+/XJYT3A5BuxVUlgQ Vml/ksfcNVOFFNk3Ytr8SpGmCtBEk7yjSC3ItJwfszv3k/kPvxDRbBmZuQDhlQAJ EfdTNvt09o5+qHAXbBZBXAR0Z1uCeCB7CZjs1M2B2875HQ7KLHFJNTwyZCvZXoH9 mnx+nxMxsTbmp29z4DGxDhqrFEUgZaKvJOG1F4cg317naEywcNSebon9pAfMu3SN 9HgV0BobkgOFsrF/RWZnaAe7c5+fjbcLlwl5/aj2n0arq3GcV6gVZrsRCeaMKYf9 J67mdwAmSvCroW1XPHvPUqKrxQ2ow+YLWosV/FzcnJrLZrAbOolFV/9s1UUG2L7a 1w1GXKTGmbNW62zYzmG0Tx9YlUSpc3MMjarfdQ7r3l/X2RUSaXj/dd9DoyQq7otM 7QlPWZJ10gtTZWHDuw+s2mhGXIsAA699QGSadvzRsc1CLJt9Oam6A58D6uhZyprT Ln17y+mvMTyWem9fOpZIU1oibC+svGH7HJqM7K4tzHO5uk22LVOKztsmhyxmzTAd JxmOv7YNHZq4ucJNFr/4KNbXnw6+BoTorGhSFbSyhKbJT4vfFFfw6g0fUFj1phEm 8Z5BBLjWaMJVwLVUsUTTs4MPJvJT8QnKZfvWHiG+TjXEeT1deOz3qwt7MD1eLp5P sSKpmdS/DbDQGwIDAQABo4ICZTCCAmEwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQW MBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBT7 /C2fqno/dfWTmDcLpX8v8+9fsTAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv 86jsoTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmlu dC14My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0Lmlu dC14My5sZXRzZW5jcnlwdC5vcmcvMBsGA1UdEQQUMBKCEHd3dy56YWphYy5ib3N0 b24wTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEF BQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEEBgorBgEEAdZ5AgQC BIH1BIHyAPAAdwDnEvKwN34aYvuOyQxhhPHqezfLVh0RJlvz4PNL8kFUbgAAAXB4 lPBeAAAEAwBIMEYCIQCHoo90/UxdQa6UEXToqNLhnZv9B+aeeO/J5qU98yk5TgIh AIjOa47B9YKzHPq5UP1aa8kYXJ1x6UBN4ZxuafKEpE9WAHUAsh4FzIuizYogTodm +Su5iiUgZ2va+nDnsklTLe+LkF4AAAFweJTwVQAABAMARjBEAiBiWz3hCe6XrId/ s7SKFMVvKmEOTxg/p6jRAlw73MotKAIgSYAgTXpRVMB1kDMNvpzKScukIiUfUkXq syxE5JFeAC0wDQYJKoZIhvcNAQELBQADggEBAApUR3JLQV2nPNkib1rZ/kQ2zwLh GH91zw0A2Rg/5YevO6vmpVKGhgmHlp3ep0zI/+8a2M2O8ooQvX721o5ss/ot9bax b6M7vy8QLM8Z/+MajmgjQ0SSAjluH9QIo5uIDMSm7RtAiWX3sO9TcvY+YrJZTF+q Wx1iW9DO0nDMx6U1CI7wmVere797bVkOEjnpab4jTHCIb1RK4rGp0vmv/c8etNBY uNf1dLUV83fOJRKrQIFWwHGEHytAx+AvHCR9xgUgbG5ntbqMPqxAzAlkGMpjrkFA lETd8E7S2eyec9Mbvf9PMQ9c4EFDXffX+wEyILhIhu1TLJ41qPcUsU8F6iI= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEApLVn/rAoU1FhPv1yWE9w OQbsVVJYEFZpf5LH3DVThRTZN2La/EqRpgrQRJO8o0gtyLScH7M795P5D78Q0WwZ mbkA4ZUACRH3Uzb7dPaOfqhwF2wWQVwEdGdbgnggewmY7NTNgdvO+R0OyixxSTU8 MmQr2V6B/Zp8fp8TMbE25qdvc+AxsQ4aqxRFIGWiryThtReHIN9e52hMsHDUnm6J /aQHzLt0jfR4FdAaG5IDhbKxf0VmZ2gHu3Ofn423C5cJef2o9p9Gq6txnFeoFWa7 EQnmjCmH/Seu5ncAJkrwq6FtVzx7z1Kiq8UNqMPmC1qLFfxc3Jyay2awGzqJRVf/ bNVFBti+2tcNRlykxpmzVuts2M5htE8fWJVEqXNzDI2q33UO695f19kVEml4/3Xf Q6MkKu6LTO0JT1mSddILU2Vhw7sPrNpoRlyLAAOvfUBkmnb80bHNQiybfTmpugOf A+roWcqa0y59e8vprzE8lnpvXzqWSFNaImwvrLxh+xyajOyuLcxzubpNti1Tis7b JocsZs0wHScZjr+2DR2auLnCTRa/+CjW158OvgaE6KxoUhW0soSmyU+L3xRX8OoN H1BY9aYRJvGeQQS41mjCVcC1VLFE07ODDybyU/EJymX71h4hvk41xHk9XXjs96sL ezA9Xi6eT7EiqZnUvw2w0BsCAwEAAQ== -----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 294485833576789709230936184312073270189941 . . . . . . . . [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 2020-02-24 18:03:11 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-24 18:03:11 +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.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 671952536725804312205556087878566669121045232621649986643708354167085988099742190770295471300872869744273512131210210028994779709955257245148808663018958486334498043311824151718966948855901810517992708411978022711676004110487424588726768781203380417147791063655504322402580877220128952884208334327498270149994759004680854671847703122657618231159470125213411249266636497218031652011107410663504726389482439890222818938703229362404897775024133671557501117042526254692849426425736635591204886027335272549952231195819899239061438633746736709585270706316158386859151645885854965974612445300365562807644525939431031831638541994301974862184224055969952797964043231409457931466387130059513904901765990063175325442219093647834428065562719816210152550396462026862277882087676689362644486657398072004855952848524336011047274502369828839880795988207614964109983377649090641357646570844177164662125327335545143142145225570575935891773296388314305059873616668279060269693193938989232662680136200552930100893215922334091577941658587484479934713161258951726048963636463008134819700668958678633131211017631310721512055842504804240508573580118915742278767746061306283444726910586561535267504169379171326380072787386925156522353907601257511748956639259 . . . . . . . . . . . . . . . . . . . . [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) fbfc2d9faa7a3f75f59398370ba57f2ff3ef5fb1 . . . . . . . . . . . . . . . . [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 (20 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007700e712f2b0377e1a62fb8ec90c6184f1ea7b37cb561d11265bf3e0f34bf241546e000001707894f05e000004030048304602210087a28f74fd4c5d41ae941174e8a8d2e19d9bfd07e69e78efc9e6a53df329394e02210088ce6b8ec1f582b31cfab950fd5a6bc9185c9d71e9404de19c6e69f284a44f56007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e000001707894f05500000403004630440220625b3de109ee97ac877fb3b48a14c56f2a610e4f183fa7a8d1025c3bdcca2d2802204980204d7a5154c07590330dbe9cca49cba422251f5245eab32c44e4915e002d . . . . [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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