www.zajac.boston
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:fd:f3:bd:90:77:93:28:20:8a:2d:8d:51:f1:f1:6e:37:02 was issued on by Let's Encrypt.
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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:fd:f3:bd:90:77:93:28:20:8a:2d:8d:51:f1:f1:6e:37:02Serial Number (int): 347752283303500845907822071603398703986434
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 0b:5c:e0:95:c4:0d:19:69:8f:be:3b:a4:e3:dd:07:9d:09:e2:fa:ca
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 84:68:ed:05:48:5e:b9:7e:f1:13:b6:8e:96:75:8f:54:69:ec:82:6d
Fingerprint (sha256): ca:f0:75:af:ce:95:a7:5a:68:92:ab:d2:a3:c8:73:1a:f8:7b:aa:32:10:35:38:68:cb:6d:20:89:ca:46:9f:1f
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----- MIIGWTCCBUGgAwIBAgISA/3zvZB3kyggii2NUfHxbjcCMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEyMjUwMjI2MTZaFw0y MDAzMjQwMjI2MTZaMBsxGTAXBgNVBAMTEHd3dy56YWphYy5ib3N0b24wggIiMA0G CSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQDZpyciOtXZTEFxba0oBrZq/KIRPn9C GbZkd0DmoIBJbTecEScIjfmDSyE0Gj7RMDmo/BKZw1oF62Gi7FFU23XEkw8wbuZn I4HphMfd36Bo33RvxHWOle3I/YAJjqM219zGeGQNfhwhY6fDwr7gxRlocoXPnPF8 QurJA2QuKSboK+BFNzukWppgw0Hx+U5BVNqy5u93A4Cu4k5Gw9mjCSDvu9YmKtwp phX/ex0aFqKMXNs/6Er6VcVyxDJYFob+ndhKPltGZfpwFeHMC8+lGefQ4TguL+0W B84GbRQDxA9orVDvzaey9csPMaGNfHbfvxWx/Dc2rmraGWD1JvhtPIGo7nOS/i2S qWddisHxfJDaAVNNBa+3LSl9q5UwMGjSpUDsUs9vmuipIHBuVmQ/9ezE6mTGHKE2 GH2ZmKbStuTEVd5SM81NOKLvfIhc3mOZUJhHsI5UyPUFk+0Msva2ZXwl31SseOFf lHumMle/KCiLJheDJ3f+dwXsKa5ENWngsAEPVCLWgS1uWQ4CSYseQUCV8EI+uO4c Rq6kPvVAf/ZZQMxM9wKxRpBF30tPN7SEKnqq7PMkGnW4QZTrhFrs8sEqfVuZ7UQj urLh86mNlf98nbh457N9hDjMGNJnWD8ckItGFa/PwxBaS24x1DQwbE+z1eO3DGIv LnJqfmu737TZ8wIDAQABo4ICZjCCAmIwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQW MBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQL XOCVxA0ZaY++O6Tj3QedCeL6yjAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv 86jsoTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmlu dC14My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0Lmlu dC14My5sZXRzZW5jcnlwdC5vcmcvMBsGA1UdEQQUMBKCEHd3dy56YWphYy5ib3N0 b24wTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEF BQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEFBgorBgEEAdZ5AgQC BIH2BIHzAPEAdgBep3P531bA57U2SH3QSeAyepGaDIShEhKEGHWWgXFFWAAAAW87 FzzsAAAEAwBHMEUCIQCMs13T+40Yz7OV4y4lCOl4XUpfWDfVXgE2Nj2+DiPvjwIg GnsSOdQ9wlnw79MNC2aYeXWUSopzZXyVinbnJsi+rL0AdwCyHgXMi6LNiiBOh2b5 K7mKJSBna9r6cOeySVMt74uQXgAAAW87FzzeAAAEAwBIMEYCIQCLIXCpv28QxMPk Ke2wRpja31NLuOQyU72BSrersPb/+AIhALzOvbHphIE/ys13dc3jeBKeHTPrgwtq EERHEWpMTMmHMA0GCSqGSIb3DQEBCwUAA4IBAQB0u197X1XOdhQAaXvZQmcHeeVk Lx+MyQctqy51eOlWNnjIw9XAMBXCOl/dOH/h/CdffR9cpwWeIjCDOpRot0Crcnnz eUCIq3LkAJAitDh2O/tXCK1KTJnpPMrU3kwkKmW1KcEJBZeHK2Ak3xXTPRA+j2hb x8rhGg/nuopEn2bqpL08cHKNHlYqWAZ+a0Z9SQtjiDIhXvb+nRF5En51L+FKDXsf qM7Cp6KtOLl2BLRUIEKxwGbFH+d2/OoWz4VBN0EMabZqKux6EOeJTncGLmqn0VV8 AoyGe8lN7BNXBfnM5yPcktjPkhM7ITmv0kf0Q/L8a2SBfzh0yL2/ngo8sUas -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA2acnIjrV2UxBcW2tKAa2 avyiET5/Qhm2ZHdA5qCASW03nBEnCI35g0shNBo+0TA5qPwSmcNaBethouxRVNt1 xJMPMG7mZyOB6YTH3d+gaN90b8R1jpXtyP2ACY6jNtfcxnhkDX4cIWOnw8K+4MUZ aHKFz5zxfELqyQNkLikm6CvgRTc7pFqaYMNB8flOQVTasubvdwOAruJORsPZowkg 77vWJircKaYV/3sdGhaijFzbP+hK+lXFcsQyWBaG/p3YSj5bRmX6cBXhzAvPpRnn 0OE4Li/tFgfOBm0UA8QPaK1Q782nsvXLDzGhjXx2378Vsfw3Nq5q2hlg9Sb4bTyB qO5zkv4tkqlnXYrB8XyQ2gFTTQWvty0pfauVMDBo0qVA7FLPb5roqSBwblZkP/Xs xOpkxhyhNhh9mZim0rbkxFXeUjPNTTii73yIXN5jmVCYR7COVMj1BZPtDLL2tmV8 Jd9UrHjhX5R7pjJXvygoiyYXgyd3/ncF7CmuRDVp4LABD1Qi1oEtblkOAkmLHkFA lfBCPrjuHEaupD71QH/2WUDMTPcCsUaQRd9LTze0hCp6quzzJBp1uEGU64Ra7PLB Kn1bme1EI7qy4fOpjZX/fJ24eOezfYQ4zBjSZ1g/HJCLRhWvz8MQWktuMdQ0MGxP s9XjtwxiLy5yan5ru9+02fMCAwEAAQ== -----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 347752283303500845907822071603398703986434 . . . . . . . . [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 2019-12-25 02:26:16 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-24 02:26:16 +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 887946529160588846363199812625385647379397912747528781239359439862942627492395354133559020420082420774223482993784488667568673309566302920372864164434002926842197987113546613679756052597834448807359659855948819034037760134772131589519497805151597188244547772621004978580361254405240590426398648798035036643750904486572880014895311611695387433419301980676804588881781321869024387952275541391711802537270114172957101214422961697949147788312206828636262232151245942806572436544447470790505735920851567242317307454589155562969402743179459781346300134520758518514929346364742119101964133111728137004156052029053108904257009659721210209803123443906240228994609573145874508244845109908185925415226471490928374185353030682503962315650814815478963001223118979040416071407001962520642636230587026037233074850665426898665138788780297222851225249660795192384298216535197686811608184700311101150276961315378835276833488288237308314167431911828159207743009101622677808372494979605058260458987503448736458854134138966370085632678876948803096635465760792645030055393896933874841170869985567363743897252463482003387621475531413396634281972235171790029855465761170964669563493982622018935671159997259925676643378558952256658165618106965884303379323379 . . . . . . . . . . . . . . . . . . . . [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) 0b5ce095c40d19698fbe3ba4e3dd079d09e2faca . . . . . . . . . . . . . . . . [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 (246 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes) 00f10076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f3b173cec00000403004730450221008cb35dd3fb8d18cfb395e32e2508e9785d4a5f5837d55e0136363dbe0e23ef8f02201a7b1239d43dc259f0efd30d0b66987975944a8a73657c958a76e726c8beacbd007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f3b173cde00000403004830460221008b2170a9bf6f10c4c3e429edb04698dadf534bb8e43253bd814ab7abb0f6fff8022100bccebdb1e984813fcacd7775cde378129e1d33eb830b6a104447116a4c4cc987 . . . . [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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