dtuco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:2c:a0:cf:f0:5f:ab:21:c1:34:d5:4b:37:39:a8:28:22:3b 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=dtuco.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:2c:a0:cf:f0:5f:ab:21:c1:34:d5:4b:37:39:a8:28:22:3b
Serial Number (int): 276523038099935278640122738609771006927419
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: d3:40:c9:d0:17:a2:b6:d8:b8:0d:cc:15:cf:f3:df:7d:6f:55:97:0a
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): fb:67:4d:1d:cf:2f:ae:1f:43:1b:05:78:e5:61:fd:4e:69:c3:e9:e8
Fingerprint (sha256): fb:ca:b6:00:ae:3f:64:05:38:7b:e0:34:7d:cc:49:33:eb:fd:d0:99:48:e2:bc:a3:5b:1e:88:e4:28:38:af:82

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate dtuco.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for dtuco.com

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

dtuco.com

Other certificates including the domain name dtuco.com

(limited to 100 certificates)
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monterreymexicanrestaurant.com
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www.dtuco.com
flexsur.com
www.dtuco.com
www.lucienletter.com
www.emojistan.com
www.dtuco.com
dtuco.com
dtuco.com

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 276523038099935278640122738609771006927419
 . . . . . . . . [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 2019-12-31 13:36:28 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-30 13:36:28 +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 'dtuco.com'
 . . . . . . . . [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 827347083762981302597244906716840176008906037234301086741168453242746995451127107692523319103128451644321008862564529615925073732036222063627356498410655415522968644597800102935288566958416258131397700491758326041289756424445216253386371150702566339028808223445854988794886599490094011186658283476596633769607102345271373865843311300149803244057434520710599458131269307981177704294901485376725713254474143455114449162967574215332681945771544528535069334418360487229154499598947798012510255280233427388348097795964587041030512109948464279026022283530361151383587862057049522205268692348227320636531240562395823677594992532133791182719480369793535465594459388634674597318208983262342280558100613677500945798378806642139468389299933267425865697002662239324672725692720381732444906173153473571747466560705398439784816145083808784209832491152927995540031146754785406097714004833816578206916351582797672381012441674361171924872251927835677994936003853146651339721772248727013505737102833933326397726639010294820652782080412916836149319180945983577155716102501230407777380231687840408549657832156361590940813421189520220085141660586287725537675938723362561368227083521390565389191626019819346517661105171032695744122957766059340635821596659
 . . . . . . . . . . . . . . . . . . . . [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)
							d340c9d017a2b6d8b80dcc15cff3df7d6f55970a
 . . . . . . . . . . . . . . . . [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 (13 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'dtuco.com'
 . . . . . . . . . . . . . . . . [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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee007500f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016f5c62fbd2000004030046304402201ee40dc82aa8a7e0d9ae33f6f8d0275744a54c757f16cb76c4dbe14ff33e919b0220593700aaf236c11fd727110a7e05caac61830cc5e6a0ffb664c27e041966cbed00750007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f5c62fbfa000004030046304402205abc9826d55d2a9711647bf86c149491b8c2275a7119387c582576badacd35b10220402887ff577631ddfe91f004279c672c3aa222e6f14e489d6f4112261b65a203
 . . . . [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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