usf.com.mx

Issued by R3

About this certificate

This digital certificate with serial number 03:36:27:4e:32:8d:cd:06:7b:81:64:dd:02:ea:85:5e:55:31 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=usf.com.mx

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:36:27:4e:32:8d:cd:06:7b:81:64:dd:02:ea:85:5e:55:31
Serial Number (int): 279764351525357097763393262734948794520881
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: f4:73:20:29:d2:13:cf:d2:56:6e:e5:8b:46:ba:12:93:86:3c:a9:87
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 2f:c6:ba:ed:28:6a:ad:d4:88:28:0b:cb:78:92:d2:4a:4c:4b:6a:13
Fingerprint (sha256): 5a:6b:55:f5:58:54:f9:4f:90:f1:b0:22:93:3e:06:f5:d7:64:5f:51:29:0a:48:2e:e3:2a:1b:5d:04:81:a0:4b

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

Revocation information

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

Check the revocation status for certificate usf.com.mx

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for usf.com.mx

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

*.usf.com.mx
usf.com.mx

Other certificates including the domain name usf.com.mx

(limited to 100 certificates)
usf.com.mx
admin.belmonthighschool.org
www.colegiofranco.edu.mx
nhstitans.org
usf.com.mx
admin.3rcs.org
usf.com.mx
admin.belmonthighschool.org
usf.com.mx
school.sjnewhaven.org
admin.belmonthighschool.org
memphiseast.com
usf.com.mx
admin.3rcs.org
usf.com.mx
admin.3rcs.org
admin.ealas.org
www.ebcacademy.com
usf.com.mx
usf.com.mx
admin.gsdacademy.com
usf.com.mx
admin.3rcs.org
*.usf.com.mx
lshigh.org
usf.com.mx
*.usf.com.mx
usf.com.mx
usf.com.mx
wes.gvusd.k12.ca.us
web.preparatorialasalle.edu.mx
*.usf.com.mx
usf.com.mx

Certificate

The complete raw certificate details for usf.com.mx in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAneWfnUHFIVi+M8HW/fNo
GU5/6Qg7OKoDTVsuG31uHbv5Z7INLy/5nFoRbYOqP9oCRRvSnZTYlGaD7DXkxXqF
oAJm0ZVkPLm+4NYdwqvKcydkdqVGaBWRBpxz3Da5CbvBdbunfrWEQWpI0Z9q/GwE
M1ZrYvKNIZgOaViuoL3eXOY5Z8ilD2U3cSVdUgBOP7IXkBP3syaWdc0jV5kJL8Tw
MCRCeXwEmaRyd7omhbtdq/iv7c5/DKe0m5dCSsuIIBe4iOAWZKGcYhW2S0hqohk2
Pvqul2fGksro9Xm39jiNnN1GUi9WxVzdBCa0GWOiceQqLo6YILtTzWgRTkxgeCZ3
FQIDAQAB
-----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 279764351525357097763393262734948794520881
 . . . . . . . . [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 2023-12-04 20:43:52 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-03 20:43:51 +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 'usf.com.mx'
 . . . . . . . . [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 19932645444415686341489846999133917781398539115919522308264896540909096800910863243353734328263910975312082524901850426994370236394110302224668733596866113647237210750051765100968988906248238672808672658512486892799991334614919921079505615027777092028938582314203797232117387055594003846731791219504375578501699451693572195193048145212520572613578517445375960988666209080380925577661441837018124500064857211207430664579438886539770098184927804241718963160354525667723525006093543481375797246072473982577212188043859709323668879550312206674707221760888222946021927871825065167807303485467856925170412882654803400226581
 . . . . . . . . . . . . . . . . . . . . [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)
							f4732029d213cfd2566ee58b46ba1293863ca987
 . . . . . . . . . . . . . . . . [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 (28 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.usf.com.mx'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'usf.com.mx'
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f000750048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018c36c9a0a10000040300463044022019c070eac1f7be11761e613959b9ae95d24cf780a2aff5c302ef7907642ff45102205a7ffc1aa0f5ea53d59198fa39cb1d17faef861a00b162f4d2ce3b991ed66a3d00770029d03a1bb674aa711cd3035b6557c14f8aa78b4fe8389449eca453f944bd24680000018c36c9a16b0000040300483046022100f1a46e808ef9a46bb1933e4c38f13ca348b1ec1cdd3c011a7007b2ffa8199e56022100d8baf3eca9eca90dd8fe41738025c49cefe7b0ae121048ca9415daae87d308b5
 . . . . [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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