www.naronline.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:4c:d1:55:f8:c8:0e:f9:d4:de:6b:11:61:70:19:2b:11:e7 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=www.naronline.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:4c:d1:55:f8:c8:0e:f9:d4:de:6b:11:61:70:19:2b:11:e7
Serial Number (int): 287476572723511935067251791578951758582247
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 12:af:91:87:91:b4:3b:97:a7:8e:ef:04:8e:47:e4:5a:dc:c1:bb:01
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 9c:ac:94:9c:fa:e0:32:dc:de:7b:ba:a4:19:21:f3:98:90:72:fe:e1
Fingerprint (sha256): e5:a3:5f:b6:a5:5e:ab:9f:3e:9b:03:b2:6b:0d:94:29:68:b0:35:61:6e:01:52:43:4e:9d:56:b7:0f:a4:08:8e

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 www.naronline.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.naronline.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

www.naronline.com

Other certificates including the domain name naronline.com

(limited to 100 certificates)
naronline.com
naronline.com
naronline.com
naronline.com
naronline.com
www.naronline.com
naronline.com
www.naronline.com
www.naronline.com
tolmezzo.com
www.naronline.com
naronline.com

Certificate

The complete raw certificate details for www.naronline.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 287476572723511935067251791578951758582247
 . . . . . . . . [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 2019-10-03 01:01:48 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-01 01:01:48 +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.naronline.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 842081298772262002245985953521777217993048017146653283707124444165184826262527888630107579575078957603377668347687900082350323673093165057119229469265176292178546137387997965242864292851002601044180574318287020373938583618692711924958098240702403987211981467661325394260456329398805172958464237041419155622544977611300731220857516586192973517054868936561503057802989566706199455609073962392348786483507028219322677166462016698649462716239173717730750407966179079325446163621219464706589664221485909533667316163960875329020392788449873429510904270877513330344383830085344333474402874618872019363522637072236569765126839189962169303145864537296315779191697669888050895172469743134302932878838654578900390913035098213458762172691458988768220217175407118329559521119376040154788817890247889008386366756498071574991527961914968209020317481799608446899701935113189295240399452882381030395353423951839415065959488262408855171280626058412193129093634648704266188744634813480910481326785453187685294507532822941026262080106284282508525576782091503278485608313942771864477949523766687746374926503728212577100121071762451655548352305293374011487045811389680549777690806723305274217650159710800577588399468657212401024659903628555403463799591639
 . . . . . . . . . . . . . . . . . . . . [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)
							12af918791b43b97a78eef048e47e45adcc1bb01
 . . . . . . . . . . . . . . . . [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 (21 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.naronline.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016d8f5a15750000040300473045022100ec8c06d86deb3223603bdc5df0214e2cdc5e46660998ee1b96070dddc7013dd10220011bfebcd124e86cfd38580d698c6c244dee4f3fd30d903340cf1b6789e35e3b007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016d8f5a15980000040300473045022100f2583cd8d3a8448835445d5b95ce599e9b5af7703821a37bd014fdc44f644030022061ff87f52b0fa6d31261dce07844a18dceca8883790c532ccb3ae7b7789957e3
 . . . . [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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