mail.guifi.net

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:e0:98:a6:0d:26:db:fc:13:82:13:8c:d5:3f:28:28:a7:f5 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=mail.guifi.net

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:e0:98:a6:0d:26:db:fc:13:82:13:8c:d5:3f:28:28:a7:f5
Serial Number (int): 337763012828958856731330951743695212816373
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: fc:9b:a0:21:ef:de:10:6b:10:2a:84:51:7c:84:f3:72:d4:06:05:b9
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 85:21:31:77:31:71:59:11:0e:99:61:36:38:6b:49:3c:e6:7e:f9:37
Fingerprint (sha256): 16:0c:cc:e8:d0:1a:6b:0b:41:1e:1f:47:da:ef:c2:ea:a5:4e:da:d1:82:02:57:16:63:1b:35:8f:a4:31:da:70

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 mail.guifi.net

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mail.guifi.net

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

mail.guifi.net

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madrid.guifi.net
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elx.guifi.net
noblezabaturra.org
noblezabaturra.org
fiberfy.io
matrix.guifi.net
noc.guifi.net
noblezabaturra.org
noblezabaturra.org
fcoord.guifi.net
fundacio.guifi.net
llistes.guifi.net
matrix.guifi.net
madrid.guifi.net
guifi.net
www.guifi.net
noblezabaturra.org
guifi.net
riot.guifi.net
guifi.net
www.campus.guifi.net
retroshare.guifi.net
castello.guifi.net
llistes.guifi.net
polr.fcoord.guifi.net
punxo.net
mail.guifi.net
videos.guifi.net
jarmona.qui.guifi.net
mail.guifi.net
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llistes.guifi.net
fundacio.guifi.net
matrix.guifi.net
gis.guifi.net
riot.guifi.net
dev.guifi.net
noblezabaturra.org
matrix.guifi.net
mallorca.guifi.net
owncloud.guifi.net
nosekefik.qui.guifi.net
mail.guifi.net
sevilla.guifi.net
audit01.guifi.net
ribagorza.guifi.net
elx.guifi.net
guifi.net
noc.guifi.net
guifi.net
punxo.net
elx.guifi.net
mail.guifi.net
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sevilla.guifi.net

Certificate

The complete raw certificate details for mail.guifi.net in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApdEOOrpcRsddb88NMo4v
4hsnsmzCC0lFR84lQ1u/UGGICM0G7+IIZu1FQ8yVCOYtpfotBaauiclSP8/7fXMC
DJIA7xRHfFX3S7Yvd0izJVtemy6/H/cqhGqh7F37RxbaM/Um0376jEyFyu4jfgEw
QYvKFXapQkLbD52okTSkLR9OCSr8MsQQlbutTB4RiFRQTunAKdMRP56RajUnl2RP
nIAqklA7wvhJnl7hH6ZuiE2XLP2WPiJd1AZeO/MXHWqDqRtYS1dUkE89f87BXKSg
Psxovt2yr2nQajqwNxU0mUmps12ZoYqMEmHK1dOXWgekd80u8eIxjc95NIcyuglS
zQIDAQAB
-----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 337763012828958856731330951743695212816373
 . . . . . . . . [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 2018-12-17 13:53:22 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-03-17 13:53:22 +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 'mail.guifi.net'
 . . . . . . . . [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 20932409469866822644606427761782378407356943301418105895120653660549003650729133489373453795891724943654886190603082029758418727801831063550323892286270284305267271505141041139472337511892797481659326891185550206026172893003045534442714612211918639078002775558981515285175848800387226572518391695134941864046858699328778411505976512707546214299052094474921038531189419576054635760464769816220121858454611920723207199320772979933166542617965275447116765687861867271523712040237317569695879850668867667232611187255484967606447458389860411054343370182688813476216129598290887080732610540438782378132290262496007571460813
 . . . . . . . . . . . . . . . . . . . . [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)
							fc9ba021efde106b102a84517c84f372d40605b9
 . . . . . . . . . . . . . . . . [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 (18 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.guifi.net'
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007700e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe00000167bca840fe0000040300483046022100ca0efdf3d42c8515842df6a4a8ea03f1b5da2e9c9617852f78553a9457e0d87f022100a6f0b3efa60355b8c2856383b68cf1c7c7d9dee2eac29e0a3dbea5f7dbb112b9007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000167bca8414a0000040300473045022100849bcdcd1e0dd91770b6e6eb8e02d139ecc5379d7c06dadc35993b6a2e4112480220665eec36c2c4a420d542e882a70545aa53e7fc24d62bf876e31d0e33b8a1157a
 . . . . [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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