map.cam.ac.uk
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:f0:d5:97:6e:07:f2:95:0b:65:96:78:b5:47:ab:d7:05:fa 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:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=map.cam.ac.uk
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:f0:d5:97:6e:07:f2:95:0b:65:96:78:b5:47:ab:d7:05:faSerial Number (int): 343288537687928526106409503462171746960890
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: bf:80:48:44:cc:c5:9a:11:36:6c:da:64:2d:be:45:c9:23:7e:f1:8b
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 1c:ec:09:07:be:1c:24:98:58:49:ec:e8:f2:c7:30:4c:c8:1e:cb:54
Fingerprint (sha256): 01:dd:a9:7e:04:75:94:de:e4:d5:01:71:39:95:6a:de:77:47:d2:25:2f:58:d6:a5:a3:cd:c7:5c:84:12:2e:7f
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate map.cam.ac.uk
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for map.cam.ac.uk
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
map.cam.ac.uk
www.map.cam.ac.uk
www.map.cam.ac.uk
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Certificate
The complete raw certificate details for map.cam.ac.uk in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGZTCCBU2gAwIBAgISA/DVl24H8pULZZZ4tUer1wX6MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xODExMjMwMTAwMzJaFw0x OTAyMjEwMTAwMzJaMBgxFjAUBgNVBAMTDW1hcC5jYW0uYWMudWswggIiMA0GCSqG SIb3DQEBAQUAA4ICDwAwggIKAoICAQC9sRRoIiLF3QH80oaWyioX+zFZ3QwTEPU/ uwPsmR4nR6Kp2Hpsm0nj5l1llCIbJ1Y1SEuL4jVwOn3KIJd4JUax/F3urtFVU5Az McWVN4LAeaT7obCM1WcdaMtw1jTIFnY82SIvZeglvLVnzeMXb4kL/muv+Rjsv9J5 9TLpvDNIgMoDED/uLtP9Gnpu/yJa0W9UbD1i8Cs30vCa+APT/DIXePeNevnByY66 GWNldQGKkVFTFuCAn6/BmOl8zefVjdQLtbgLIwauWV4qZ7icjGXIiAuZ0mK8vOKj i4VdNAfq58Z97zX4F1FLeiu3uY7XPt0uPh42qusHnfVdM2U18mt0odQ0zg/zSdGm TPnkWXeS4L3/ABzUY2Bq/Ltw0uT4RMRZlDsGS4cnFGnkM4enwRdo17GFBY/1JbGh RiWRvCxf5DO8kUhArikqaIMsK6YAz3qqcR3Jr+AnpIPKzM5iJN3tBssP/jUtr1lP 2JwaK+YlPaa5SFmcR9WyrTmWllNRoe3El39VKJlCGABfqtg+HbAesOK+HrYltxfk LY5oIoaCknEdLcx30HdJXkqgtZ0lKOxOdus7fvJYf3zMei/9NUmdH6E0reISMW6d elIu5PamVhj0tSd6fqvldz+/lUz1J2ES5IK7WTKK0WwxqA5f0cM/0Ajg/ZFzvMCP 1VWC1d9U1QIDAQABo4ICdTCCAnEwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQG CCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBS/gEhE zMWaETZs2mQtvkXJI37xizAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86js oTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14 My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14 My5sZXRzZW5jcnlwdC5vcmcvMCsGA1UdEQQkMCKCDW1hcC5jYW0uYWMudWuCEXd3 dy5tYXAuY2FtLmFjLnVrMEwGA1UdIARFMEMwCAYGZ4EMAQIBMDcGCysGAQQBgt8T AQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5cHQub3JnMIIB BAYKKwYBBAHWeQIEAgSB9QSB8gDwAHYA4mlLribo6UAJ6IYbtjuD1D7n/nSI+6SP KJMBnd3x2/4AAAFnPkwUnAAABAMARzBFAiBrKP9OUuuoRitvdVViCTWcHDzGSJOY JO1K2pymsT0qwwIhAKI0K+UhR/9HMPjwoOwRT0H33MSMZu3D863cjyswjbpjAHYA Y/Lbzeg7zCzPC3KEJ1drM6SNYXePvXWmOLHHaFRL2I0AAAFnPkwUnAAABAMARzBF AiAk7if4ONYrE7qIZSy0Vt0YqGDUi8iofhnGTm5U/ibmwgIhAI3bm4Ev/+lHQIDO q07YsErOBuh88NMD4qhGLB10R2bSMA0GCSqGSIb3DQEBCwUAA4IBAQAauzCffndw Q1oxD/C59HCs45lsoJah1Jz2WSqGFTh+SrFxUl1WHV/HI06pXHwbxFY9Sfbf0BsI XXEc0foU30JX09zMzqZVktVEISBmhW7314R1K74l1KAvh+VMdhUd+Ytzp7QpWdVr NOHZYmdV8lf/GedHJju7YJt24Rp/LjwDrydIYtxZQ2Pnz++eVm4sXXQ4ZPBaHvWU E4NXkDMNznAsBuZXYJxY034UWhD2P+4YzH+8PuAzmEBNd/F0hTj9k4gNfV1z2oGc F9l+wyVP1IZQHpZqWnfs01qlK3ERQVuAjUKjz1wPhfipLIfSTWAC90JhzioexWLK 6wLlBaB95vb+ -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAvbEUaCIixd0B/NKGlsoq F/sxWd0MExD1P7sD7JkeJ0eiqdh6bJtJ4+ZdZZQiGydWNUhLi+I1cDp9yiCXeCVG sfxd7q7RVVOQMzHFlTeCwHmk+6GwjNVnHWjLcNY0yBZ2PNkiL2XoJby1Z83jF2+J C/5rr/kY7L/SefUy6bwzSIDKAxA/7i7T/Rp6bv8iWtFvVGw9YvArN9LwmvgD0/wy F3j3jXr5wcmOuhljZXUBipFRUxbggJ+vwZjpfM3n1Y3UC7W4CyMGrlleKme4nIxl yIgLmdJivLzio4uFXTQH6ufGfe81+BdRS3ort7mO1z7dLj4eNqrrB531XTNlNfJr dKHUNM4P80nRpkz55Fl3kuC9/wAc1GNgavy7cNLk+ETEWZQ7BkuHJxRp5DOHp8EX aNexhQWP9SWxoUYlkbwsX+QzvJFIQK4pKmiDLCumAM96qnEdya/gJ6SDyszOYiTd 7QbLD/41La9ZT9icGivmJT2muUhZnEfVsq05lpZTUaHtxJd/VSiZQhgAX6rYPh2w HrDivh62JbcX5C2OaCKGgpJxHS3Md9B3SV5KoLWdJSjsTnbrO37yWH98zHov/TVJ nR+hNK3iEjFunXpSLuT2plYY9LUnen6r5Xc/v5VM9SdhEuSCu1kyitFsMagOX9HD P9AI4P2Rc7zAj9VVgtXfVNUCAwEAAQ== -----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 343288537687928526106409503462171746960890 . . . . . . . . [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 2018-11-23 01:00:32 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-02-21 01:00:32 +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 'map.cam.ac.uk' . . . . . . . . [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 773874690592435181480401998128604174507613966580752861769965531943669594637518134338238599674947488268997188870159689851737292348450138954823014810975102173644524902269072194330325058792948504998084430925468845883897035419008398673089605903486104340892285683888560671399763584219860892127159424469752606619123013011559804952313516338320919677593767642690674348478412293652770637931462427565673710203407156739596306573978905042820535559615985181461986221358403938428407487801191770530031973633720686606426787744439650969286708524170747924262033304343095520226839229975262687076005636217762506969070900954760233561685555737430634015820964135898609787571348820198872490184100030136255599842286867971654523715690362307783193771588154517458156255229731021665051587643746711896058792335547920191423124179999741120170446895353412178014056121068312997056097868680898769631092609977766774920837900214077574831252583356478003816740540517037901338262621526829479797055736545837692620505318148568836629253164730713139908616020071328630718359366083751716650118873231015759460467939669037232240251044740224714313525007519031416402251418469895563534900251156854559614927066282366920672738704314703121305410431591771294395425690875490435056613151957 . . . . . . . . . . . . . . . . . . . . [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) bf804844ccc59a11366cda642dbe45c9237ef18b . . . . . . . . . . . . . . . . [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 (36 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'map.cam.ac.uk' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.map.cam.ac.uk' . . . . . . . . . . . . . . . . [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) 00f0007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe000001673e4c149c000004030047304502206b28ff4e52eba8462b6f75556209359c1c3cc648939824ed4ada9ca6b13d2ac3022100a2342be52147ff4730f8f0a0ec114f41f7dcc48c66edc3f3addc8f2b308dba6300760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d000001673e4c149c0000040300473045022024ee27f838d62b13ba88652cb456dd18a860d48bc8a87e19c64e6e54fe26e6c20221008ddb9b812fffe9474080ceab4ed8b04ace06e87cf0d303e2a8462c1d744766d2 . . . . [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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