waterloo.io

Issued by R3

About this certificate

This digital certificate with serial number 04:c9:b2:d0:21:fc:66:84:62:39:e9:7f:c9:39:b2:b1:76:94 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=waterloo.io

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:c9:b2:d0:21:fc:66:84:62:39:e9:7f:c9:39:b2:b1:76:94
Serial Number (int): 417083582748462649399327414617184998094484
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: a5:f1:de:ff:3c:37:4f:88:84:75:6f:6e:8c:c3:25:ee:35:7a:f2:dc
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 52:f3:f4:d8:64:7b:bb:58:41:05:b7:af:04:2c:eb:49:de:4a:c3:c4
Fingerprint (sha256): 18:01:43:9e:be:0d:be:43:5e:a8:99:8e:55:5d:aa:30:94:a2:10:92:5f:24:35:26:c0:d0:83:34:14:52:42:90

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate waterloo.io

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for waterloo.io

Public Key Algorithm

RSA

Key Size

2048

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

waterloo.io
www.waterloo.io

Other certificates including the domain name waterloo.io

(limited to 100 certificates)
dev.waterloo.io
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app.waterloo.io
*.waterloo.io
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waterloo.io
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waterloo.io
waterloo.io
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waterloo.io
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waterloo.io
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app.waterloo.io
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*.waterloo.io
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*.waterloo.io
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app.waterloo.io
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demo.waterloo.io
content.waterloo.io
dev.waterloo.io
waterloo.io
dev.waterloo.io
demo.waterloo.io
content.waterloo.io
dev.waterloo.io
demo.waterloo.io
demo.waterloo.io
demo.waterloo.io
app.waterloo.io
app.waterloo.io
waterloo.io
app.waterloo.io
waterloo.io
app.waterloo.io
waterloo.io
content.waterloo.io
app.waterloo.io
app.waterloo.io
demo.waterloo.io
demo.waterloo.io
demo.waterloo.io
demo.waterloo.io
dev.waterloo.io
waterloo.io
demo.waterloo.io
app.waterloo.io
demo.waterloo.io
app.waterloo.io
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demo.waterloo.io
waterloo.io
waterloo.io
waterloo.io

Certificate

The complete raw certificate details for waterloo.io in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIE8zCCA9ugAwIBAgISBMmy0CH8ZoRiOel/yTmysXaUMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yNDAzMDUxMjU3MzVaFw0yNDA2MDMxMjU3MzRaMBYxFDASBgNVBAMT
C3dhdGVybG9vLmlvMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3vEj
4yyqGw+ZvZB+QFFYSuR5N3LTM/cE+l6uWzVNdPYDxBVcpPipWTqSmFSD0iTWV+ui
ZhlCy+c+1O+hYnyfoaEe0k/XkYW4cLgu97dgAzveZhWuIOV644uwHhcu9Z3LtWQR
5I7/RfIq5toamfGuIVm6NqXVkXVWOuVn58FdyFXYkqb21YPajDxNJtg0MJoQ7sCd
PYDum0y1o2XFG+QlPXN05L+dNwrw1vx4dqSZs6iBFW1UTHX0rMJ0JFnIyKGc5UUJ
xEyU2vIyRvCB9HqK1MgE8X6n22PKmDCQepgTmCb8rhTeSvCQ9KP1f1w94773WlZm
ImjLVsJDHcCEzTFEAwIDAQABo4ICHTCCAhkwDgYDVR0PAQH/BAQDAgWgMB0GA1Ud
JQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQW
BBSl8d7/PDdPiIR1b26MwyXuNXry3DAfBgNVHSMEGDAWgBQULrMXt1hWy65QCUDm
H6+dixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUHMAGGFWh0dHA6Ly9yMy5v
LmxlbmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3IzLmkubGVuY3Iub3JnLzAn
BgNVHREEIDAeggt3YXRlcmxvby5pb4IPd3d3LndhdGVybG9vLmlvMBMGA1UdIAQM
MAowCAYGZ4EMAQIBMIIBAwYKKwYBBAHWeQIEAgSB9ASB8QDvAHYASLDja9qmRzQP
5WoC+p0w6xxSActW3SyB2bu/qznYhHMAAAGODufMWwAABAMARzBFAiBpc/2cZSBg
Wybf2fQnQZ5Bw71chK4rR+SC6HTXFm6yyQIhANfvBIyDxnr7l8Mj9lLbIpvUl/Nx
XGv7/U9rQCXuU1OTAHUAouK/1h7eLy8HoNZObTen3GVDsMa1LqLat4r4mm31F9gA
AAGODufMaQAABAMARjBEAiAMJLwhA9WpCHKU70Y3I1kb9bbZXtyd1Nii8yUSMLY7
eQIgMGjt0katqP2hwa0lBBnWehAwjMjGyZI48x4iK+Ae3SUwDQYJKoZIhvcNAQEL
BQADggEBAGdK4FqgkTpWE7G/n3nGt9syE3oLSUMPZjsebKuCWJ+NBaUzlEo5AkxH
xcsmQTa4UGxtPELMC1iTMgbnl2dZeKQrubvOF3bOJTH9zyu5w0o3kaGKWyiK6YgY
uRQdOMlZBgXY4uPv9YfTAmFNNIpJfSCY5z4fk956/Cn8K5WXu7axmXxYg8dinmDU
bqVK1HZvuzBW9nV14FcJvv1BFIGBn4nUwLaI4qsk3zbLN4X+r3fT/un64eyjKNf5
dheb2FNfbUga2kOkraberA88Z7h17Kw7BZU0L007bW23JnA0tCfvnU1AerGacuEx
hfD+aDaMMxRMmW1omFriEM+NiLHwVyI=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3vEj4yyqGw+ZvZB+QFFY
SuR5N3LTM/cE+l6uWzVNdPYDxBVcpPipWTqSmFSD0iTWV+uiZhlCy+c+1O+hYnyf
oaEe0k/XkYW4cLgu97dgAzveZhWuIOV644uwHhcu9Z3LtWQR5I7/RfIq5toamfGu
IVm6NqXVkXVWOuVn58FdyFXYkqb21YPajDxNJtg0MJoQ7sCdPYDum0y1o2XFG+Ql
PXN05L+dNwrw1vx4dqSZs6iBFW1UTHX0rMJ0JFnIyKGc5UUJxEyU2vIyRvCB9HqK
1MgE8X6n22PKmDCQepgTmCb8rhTeSvCQ9KP1f1w94773WlZmImjLVsJDHcCEzTFE
AwIDAQAB
-----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 417083582748462649399327414617184998094484
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-05 12:57:35 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-03 12:57:34 +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 'waterloo.io'
 . . . . . . . . [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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 28143814359626977176876133724868120153833061586921216673275349679712899696236016540121813377474552669277761981560079699773124219623362808876529090448609414372438671209933740989152720234260262498676288914376944962001433130440122502467339691674846454847069457791788317428372766141718318729581425736324817891666384523774824521500070689746596172864036468256197881539881606489973106879037015549240410368234282579581735041803174850593357700257475863995843672946762365438324993364749347901985128514199350428632721907793860610890637958825417115264229419714468996920792840833327263938629342069666710713773621691619756964135939
 . . . . . . . . . . . . . . . . . . . . [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)
							a5f1deff3c374f8884756f6e8cc325ee357af2dc
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (32 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'waterloo.io'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.waterloo.io'
 . . . . . . . . . . . . . . . . [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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef00760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018e0ee7cc5b000004030047304502206973fd9c6520605b26dfd9f427419e41c3bd5c84ae2b47e482e874d7166eb2c9022100d7ef048c83c67afb97c323f652db229bd497f3715c6bfbfd4f6b4025ee535393007500a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018e0ee7cc69000004030046304402200c24bc2103d5a9087294ef463723591bf5b6d95edc9dd4d8a2f3251230b63b7902203068edd246ada8fda1c1ad250419d67a10308cc8c6c99238f31e222be01edd25
 . . . . [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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