DNS
THE CERTIFICATE BEHIND THE CONNECTION

TLS certificate checker.

Inspect SSL/TLS certificates for any public domain or subdomain.

Checks HTTPS on port 443, including subject alternative names, validity dates and the presented chain.

SSL certificate

TLSv1.3

msg.ayedo.io · 93.191.53.100:443

Verified

Certificate chain, hostname and dates verified using this server’s CA store.

Subject
CN=msg.ayedo.io
Issuer
C=US O=Let's Encrypt CN=YR2
Valid from
2026-09-29T11:05:57+00:00
Expires
2026-12-28T11:05:56+00:00
Days remaining
60
Serial (hex)
06A97E1C28C287568A1EDF0A0E73CEADFF35
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:autoconfig.ayedo.de, DNS:autoconfig.lewation.de, DNS:autodiscover.ayedo.de, DNS:autodiscover.lewation.de, DNS:msg.ayedo.io

SHA-256 fingerprint

CD:F1:E3:71:C1:50:90:81:B4:1F:94:D1:B1:70:3D:26:DF:A7:B6:B2:8F:5F:1F:AF:D8:02:64:1B:D9:C9:00:58
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
94:D1:2D:73:2A:21:6D:6E:C6:B7:87:14:A4:AF:F0:10:45:0D:21:26
authorityKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
authorityInfoAccess
CA Issuers - URI:http://yr2.i.lencr.org/
subjectAltName
DNS:autoconfig.ayedo.de, DNS:autoconfig.lewation.de, DNS:autodiscover.ayedo.de, DNS:autodiscover.lewation.de, DNS:msg.ayedo.io
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr2.c.lencr.org/54.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D8:09:55:3B:94:4F:7A:FF:C8:16:19:6F:94:4F:85:AB: B0:F8:FC:5E:87:55:26:0F:15:D1:2E:72:BB:45:4B:14 Timestamp : Sep 29 12:04:27.527 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:7B:C5:43:C3:51:04:00:43:69:22:D6:06: 6C:44:AE:7A:D0:94:2D:47:2F:17:D6:04:58:64:A0:BC: 76:A0:AF:4E:02:21:00:93:1E:72:F9:0D:3C:6D:16:00: 8F:8D:D5:2A:D1:AC:2E:15:BB:6C:CF:06:A3:74:A0:48: EE:16:F2:1D:29:BA:59 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 26:E3:64:6E:58:69:21:23:BC:34:3F:47:24:35:9B:37: 92:CD:24:5A:88:D8:15:D3:93:33:FD:99:18:AB:47:23 Timestamp : Sep 29 12:04:24.888 2026 GMT Extensions: 00:00:05:00:47:C4:53:B1 Signature : ecdsa-with-SHA256 30:45:02:21:00:C0:9C:BD:71:D9:70:56:50:31:EF:D0: C7:70:3F:4D:B9:99:81:86:A5:60:B2:90:EA:F9:E8:28: FA:90:04:E1:B7:02:20:61:BE:B5:04:4D:49:F3:34:6F: B6:66:36:92:42:5F:E7:37:9E:FF:E5:A5:FC:BD:27:F5: 7C:53:CB:71:AC:76:7D
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-28T11:36:10+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YR2
Issuer
C=US O=ISRG CN=Root YR
Valid from
2025-09-03T00:00:00+00:00
Expires
2028-09-02T23:59:59+00:00
Days remaining
675
Serial (hex)
4EBD24947E24D394802D84A52FD5B319
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

23:8B:85:A0:09:9C:65:B9:70:47:7D:57:24:F1:A1:D4:75:CE:50:58:CF:FE:4E:FA:87:33:89:9B:DB:86:3C:47
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
authorityKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityInfoAccess
CA Issuers - URI:http://yr.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr.c.lencr.org/ 
-----BEGIN CERTIFICATE-----
MIIE2jCCAsKgAwIBAgIQTr0klH4k05SALYSlL9WzGTANBgkqhkiG9w0BAQsFADAu
MQswCQYDVQQGEwJVUzENMAsGA1UEChMESVNSRzEQMA4GA1UEAxMHUm9vdCBZUjAe
Fw0yNTA5MDMwMDAwMDBaFw0yODA5MDIyMzU5NTlaMDMxCzAJBgNVBAYTAlVTMRYw
FAYDVQQKEw1MZXQncyBFbmNyeXB0MQwwCgYDVQQDEwNZUjIwggEiMA0GCSqGSIb3
DQEBAQUAA4IBDwAwggEKAoIBAQDZ0LxwBppqh84luqMerV/eeL/fXQ7mLQQv1Lnp
WKZbyvGpx6wh6AfnslAnF6ewTkcHA+gSOoBvm3Dfm06AuGiF+KRut4fAcowqnAQQ
CW98+QPP/eOv/wug7Iyk4NkOxf2I6g2f55T6nJoOTLFcukeRq80JGQEYan+dPFr9
OGUgQK2hGKgNkW87pappsOAuUJcroYhRt5uUis4qaZireiseu32gzDJNBAiKtsvd
6HX4v25bpkRNcS/B/Gtc9kVbUpD+2PLPxdei3Tim55k4tfAEXwD2qyiPTxrTNq6l
N+AMr5g2c1dNqkOTwjxeV6L5lpP1rGiYvLnRaPlOqyZRPW+5AgMBAAGjge4wgesw
DgYDVR0PAQH/BAQDAgGGMBMGA1UdJQQMMAoGCCsGAQUFBwMBMBIGA1UdEwEB/wQI
MAYBAf8CAQAwHQYDVR0OBBYEFEAVLSZ57TIgnt+ach3WMh+BDIEMMB8GA1UdIwQY
MBaAFN7nW2DQIm1AKH0/DQH+pLVStFGUMDIGCCsGAQUFBwEBBCYwJDAiBggrBgEF
BQcwAoYWaHR0cDovL3lyLmkubGVuY3Iub3JnLzATBgNVHSAEDDAKMAgGBmeBDAEC
ATAnBgNVHR8EIDAeMBygGqAYhhZodHRwOi8veXIuYy5sZW5jci5vcmcvMA0GCSqG
SIb3DQEBCwUAA4ICAQB0ZUQWZ9/Yn9COEpo+JfecMnB0h0vwDm/M66IqXqw3LoaL
mx9lZvRTeDIS67PUeI3yCA2W6PKRD0/FE/G57lOmS+Xy5AaaL00ICGOqjNcCaMWW
8o8nevHOd4i4lqgtznE/28QwlcdJyF8yBiWHpnyjhEpmNWJURgOCOg2xpwRMBCsj
MScqYPtOhBeuYQvSwAEeTML2Ukh6uGuX4E14q65Ja8cdjF5bAldnP1eE4FBaAwsZ
G2fOqqrKV03Y85Nw2btedP1AtliQuJZs/Jo/gXxXdc7LrH3McgnpnbTiAncX7yES
hP6kzQejllqMCIt52HOjxDGWafS7Xw+DKwqmH+Eqy8dcbOuag/1AYlQoKNVK3F5q
Hh6tEDiMqQcLIibGKteE6iHo4A/bIScbzrhXUYuism42ZYzmc48FMVIH3qy4L84E
TdAH2gtxw0PAhvRVXp8HP7wfngpzsN/8xOTpeRSbM4+Qbc56G6+Bifmv6sk1ieQb
NA3wJdl4DDUuQSV8hBgx6zoI1ZSGORprDFux7c6rhc77QZMSRrEgomBeklervEve
86ylWmZ3WWHV6RLMi8xNvjd71r4EPIGgY7BZU/VPBkq+uA7Gb6mbJnFgV43uh3xy
LRFgxIAphIukwTGSMZZR+AI+Qnp0BYTWovHXozOf3H8r6hozEoT02JHn0AeTfA==
-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=ISRG CN=Root YR
Issuer
C=US O=Internet Security Research Group CN=ISRG Root X1
Valid from
2026-05-13T00:00:00+00:00
Expires
2032-09-02T23:59:59+00:00
Days remaining
2136
Serial (hex)
F24B6D17F9D9AD7CB1C9FEA78782699F
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

07:26:39:D0:B1:40:D5:BF:FA:E1:6A:D9:C3:F6:CC:60:86:04:06:21:F5:1E:E6:1A:6D:46:A8:91:5C:07:CF:76
Certificate extensions & PEM
keyUsage
Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE
subjectKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityKeyIdentifier
79:B4:59:E6:7B:B6:E5:E4:01:73:80:08:88:C8:1A:58:F6:E9:9B:6E
authorityInfoAccess
CA Issuers - URI:http://x1.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://x1.c.lencr.org/ 
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

View certificate JSON

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