Check DNS, Urls + Redirects, Certificates and Content of your Website


Info: Problems with 3.048.289 Letsencrypt certificates (378.325 accounts). They must be revoked (revocation starts 2020-03-04 20:00 UTC) - see Revoking certain certificates on March 4. Update 2020-03-07: Good news: Mass-revocation is canceled.

This tool: A check (SerialNumber) is added. Letsencrypt has published a list of critical SerialNumbers, this list is checked. See the part "9. Certificates". If there is a warning, renew that certificate and replace the current certificate.




N

No trusted Certificate

Checked:
24.04.2019 08:39:31


Older results


1. IP-Addresses

HostTIP-Addressis auth.∑ Queries∑ Timeout
pl.csie.ntut.edu.tw
A
140.124.181.82
No Hostname found
yes
1
0

AAAA

yes


www.pl.csie.ntut.edu.tw

Name Error
yes
1
0


2. DNSSEC

Zone (*)DNSSEC - Informations (beta)

Zone: (root)
(root)
1 DS RR published



Status: Valid because published



2 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 20326, Flags 257 (SEP = Secure Entry Point)



Public Key with Algorithm 8, KeyTag 25266, Flags 256



1 RRSIG RR to validate DNSKEY RR found



Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 12.05.2019, 00:00:00, Signature-Inception: 21.04.2019, 00:00:00, KeyTag 20326, Signer-Name: (root)



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 20326 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 20326, DigestType 2 and Digest "4G1EuAuPHTmpXAsNfGXQhFjogECbvGg0VxBCN8f47I0=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: tw
tw
1 DS RR in the parent zone found



1 RRSIG RR to validate DS RR found



Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 07.05.2019, 05:00:00, Signature-Inception: 24.04.2019, 04:00:00, KeyTag 25266, Signer-Name: (root)



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 25266 used to validate the DS RRSet in the parent zone



3 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 441, Flags 256



Public Key with Algorithm 8, KeyTag 38994, Flags 256



Public Key with Algorithm 8, KeyTag 40792, Flags 257 (SEP = Secure Entry Point)



2 RRSIG RR to validate DNSKEY RR found



Algorithm: 8, 1 Labels, original TTL: 900 sec, Signature-expiration: 23.05.2019, 20:07:14, Signature-Inception: 23.04.2019, 20:07:14, KeyTag 441, Signer-Name: tw



Algorithm: 8, 1 Labels, original TTL: 900 sec, Signature-expiration: 23.05.2019, 20:07:14, Signature-Inception: 23.04.2019, 20:07:14, KeyTag 40792, Signer-Name: tw



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 441 used to validate the DNSKEY RRSet



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 40792 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 40792, DigestType 2 and Digest "oF20sN65cQMTYbtiHouxuNc0ZmWj0bBuwUMa230BXuk=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: edu.tw
edu.tw
2 DS RR in the parent zone found



1 RRSIG RR to validate DS RR found



Algorithm: 8, 2 Labels, original TTL: 300 sec, Signature-expiration: 23.05.2019, 20:07:14, Signature-Inception: 23.04.2019, 20:07:14, KeyTag 441, Signer-Name: tw



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 441 used to validate the DS RRSet in the parent zone



4 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 21903, Flags 256



Public Key with Algorithm 8, KeyTag 32734, Flags 257 (SEP = Secure Entry Point)



Public Key with Algorithm 8, KeyTag 40234, Flags 257 (SEP = Secure Entry Point)



Public Key with Algorithm 8, KeyTag 62979, Flags 256



3 RRSIG RR to validate DNSKEY RR found



Algorithm: 8, 2 Labels, original TTL: 172800 sec, Signature-expiration: 27.04.2019, 11:44:35, Signature-Inception: 23.04.2019, 11:12:54, KeyTag 32734, Signer-Name: edu.tw



Algorithm: 8, 2 Labels, original TTL: 172800 sec, Signature-expiration: 27.04.2019, 11:44:35, Signature-Inception: 23.04.2019, 11:12:54, KeyTag 40234, Signer-Name: edu.tw



Algorithm: 8, 2 Labels, original TTL: 172800 sec, Signature-expiration: 27.04.2019, 11:44:35, Signature-Inception: 23.04.2019, 11:12:54, KeyTag 62979, Signer-Name: edu.tw



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 32734 used to validate the DNSKEY RRSet



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 40234 used to validate the DNSKEY RRSet



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 62979 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 40234, DigestType 1 and Digest "Woq2fEYfQzDRRu5OLloIziebe+s=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 40234, DigestType 2 and Digest "KJ0GHSCMhxkV6wf2P7F1shAiQi1TZdTpRbzjlxBKnAg=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: ntut.edu.tw
ntut.edu.tw
0 DS RR in the parent zone found



DS-Query in the parent zone has a valid NSEC3 RR as result with the hashed domain name between the hashed NSEC3-owner and the hashed NextOwner. So the parent zone confirmes the non-existence of a DS RR.Bitmap: No Bitmap?



0 DNSKEY RR found





Zone: csie.ntut.edu.tw
csie.ntut.edu.tw
0 DS RR in the parent zone found



0 DNSKEY RR found





Zone: pl.csie.ntut.edu.tw
pl.csie.ntut.edu.tw
0 DS RR in the parent zone found



0 DNSKEY RR found





Zone: www.pl.csie.ntut.edu.tw
www.pl.csie.ntut.edu.tw
0 DS RR in the parent zone found


3. Name Servers

DomainNameserverNS-IP
www.pl.csie.ntut.edu.tw
  csie.ntut.edu.tw

pl.csie.ntut.edu.tw
  csie.ntut.edu.tw

csie.ntut.edu.tw
  csie.ntut.edu.tw

ntut.edu.tw
  galaxy.cc.ntut.edu.tw


T  nsbackup.ntut.edu.tw


  sun.cc.ntut.edu.tw

edu.tw
T  a.twnic.net.tw


  b.twnic.net.tw


  c.twnic.net.tw


  d.twnic.net.tw


  moemoon.edu.tw


  moestar.edu.tw

tw
  a.dns.tw


  anytld.apnic.net / ns4-de1.apnic.net


  b.dns.tw


  c.dns.tw


  d.dns.tw


  e.dns.tw


  f.dns.tw


  g.dns.tw


  h.dns.tw / 2.ber.pch


  ns.twnic.net


4. SOA-Entries


Domain:tw
Primary:a.dns.tw
Mail:snw.twnic.net.tw
Serial:2008330383
Refresh:3600
Retry:900
Expire:1296000
TTL:900
num Entries:1


Domain:tw
Primary:a.dns.tw
Mail:snw.twnic.net.tw
Serial:2008330385
Refresh:3600
Retry:900
Expire:1296000
TTL:900
num Entries:9


Domain:edu.tw
Primary:edudns-m1.edu.tw
Mail:abuse.moe.edu.tw
Serial:2013140685
Refresh:14400
Retry:1440
Expire:3600000
TTL:300
num Entries:1


Domain:edu.tw
Primary:edudns-m1.edu.tw
Mail:abuse.moe.edu.tw
Serial:2013140685
Refresh:14400
Retry:1440
Expire:3600000
TTL:300
num Entries:1


Domain:edu.tw
Primary:edudns-m1.edu.tw
Mail:abuse.moe.edu.tw
Serial:2013140751
Refresh:14400
Retry:1440
Expire:3600000
TTL:300
num Entries:2


Domain:edu.tw
Primary:edudns-m1.edu.tw
Mail:abuse.moe.edu.tw
Serial:2013140751
Refresh:14400
Retry:1440
Expire:3600000
TTL:300
num Entries:2


Domain:edu.tw
Primary:edudns-m1.edu.tw
Mail:abuse.moe.edu.tw
Serial:2013140752
Refresh:14400
Retry:1440
Expire:3600000
TTL:300
num Entries:2


Domain:edu.tw
Primary:edudns-m1.edu.tw
Mail:abuse.moe.edu.tw
Serial:2013140752
Refresh:14400
Retry:1440
Expire:3600000
TTL:300
num Entries:2


Domain:ntut.edu.tw
Primary:galaxy.cc.ntut.edu.tw
Mail:network.ntut.edu.tw
Serial:2018121255
Refresh:10800
Retry:3600
Expire:2419200
TTL:900
num Entries:2


Domain:csie.ntut.edu.tw
Primary:csie.ntut.edu.tw
Mail:root.csie.ntut.edu.tw
Serial:2019032801
Refresh:86400
Retry:1800
Expire:1728000
TTL:259200
num Entries:1


5. Screenshots (Beta)

Startaddress: https://pl.csie.ntut.edu.tw, address used: https://pl.csie.ntut.edu.tw/, Screenshot created 2020-02-14 07:50:32 +00:0 url is insecure, certificate invalid

Mobil (412px x 732px)

568 milliseconds

Screenshot mobile - https://pl.csie.ntut.edu.tw/
Screen (1280px x 1680px)

4068 milliseconds

Screenshot Desktop - https://pl.csie.ntut.edu.tw/
Mobil + Landscape (732px x 412px)

602 milliseconds

Screenshot mobile landscape - https://pl.csie.ntut.edu.tw/

Mobile- and other Chrome-Checks

widthheight
visual Viewport412732
content Size412732

Good: No horizontal scrollbar. Content-size width = visual Viewport width.

Chrome-Connection: secure. secure connection settings. The connection to this site is encrypted and authenticated using TLS 1.2, ECDHE_RSA with X25519, and CHACHA20_POLY1305.

Chrome-Resources : secure. all served securely. All resources on this page are served securely.

6. Url-Checks


:

:
Domainname Http-StatusredirectSec.G
• http://pl.csie.ntut.edu.tw/
140.124.181.82
301
https://pl.csie.ntut.edu.tw/
0.616
A
Date: Wed, 24 Apr 2019 06:44:33 GMT
Server: Apache/2.2.22 (Ubuntu)
Location: https://pl.csie.ntut.edu.tw/
Vary: Accept-Encoding
Content-Length: 321
Connection: close
Content-Type: text/html; charset=iso-8859-1

• https://pl.csie.ntut.edu.tw/
140.124.181.82
200

2.896
N
Certificate error: RemoteCertificateChainErrors
Date: Wed, 24 Apr 2019 06:44:34 GMT
Server: Apache/2.2.22 (Ubuntu)
Last-Modified: Tue, 19 Sep 2017 05:47:08 GMT
ETag: "e1348-411-5598463d49ddb"
Accept-Ranges: bytes
Content-Length: 1041
Vary: Accept-Encoding
Connection: close
Content-Type: text/html

• http://pl.csie.ntut.edu.tw/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
140.124.181.82
301
https://pl.csie.ntut.edu.tw/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
0.614
A
Visible Content:
Date: Wed, 24 Apr 2019 06:44:37 GMT
Server: Apache/2.2.22 (Ubuntu)
Location: https://pl.csie.ntut.edu.tw/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Vary: Accept-Encoding
Content-Length: 390
Connection: close
Content-Type: text/html; charset=iso-8859-1

• https://pl.csie.ntut.edu.tw/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

404

2.460
N
Not Found
Certificate error: RemoteCertificateChainErrors
Visible Content:
Date: Wed, 24 Apr 2019 06:44:37 GMT
Server: Apache/2.2.22 (Ubuntu)
Vary: Accept-Encoding
Content-Length: 353
Connection: close
Content-Type: text/html; charset=iso-8859-1

7. Comments

Aname "pl.csie.ntut.edu.tw" is subdomain, public suffix is "edu.tw", top-level-domain-type is "country-code", Country is Taiwan (Province of China), tld-manager is "Taiwan Network Information Center (TWNIC)"
Agood: All ip addresses are public addresses
Agood: No asked Authoritative Name Server had a timeout
ADNS: "Name Error" means: No www-dns-entry defined. This isn't a problem
Agood: destination is https
Agood - only one version with Http-Status 200
Agood: one preferred version: non-www is preferred
AGood: Some urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset):1 complete Content-Type - header (2 urls)
https://pl.csie.ntut.edu.tw/ 140.124.181.82


Url with incomplete Content-Type - header - missing charset
Ahttp://pl.csie.ntut.edu.tw/ 140.124.181.82
301
https://pl.csie.ntut.edu.tw/
correct redirect http - https with the same domain name
Bhttps://pl.csie.ntut.edu.tw/ 140.124.181.82
200

Missing HSTS-Header
Nhttps://pl.csie.ntut.edu.tw/ 140.124.181.82
200

Error - Certificate isn't trusted, RemoteCertificateChainErrors
Nhttps://pl.csie.ntut.edu.tw/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
404

Error - Certificate isn't trusted, RemoteCertificateChainErrors
XFatal error: Nameserver doesn't support TCP connection: nsbackup.ntut.edu.tw: Timeout
XFatal error: Nameserver doesn't support TCP connection: csie.ntut.edu.tw: Timeout
AGood: Nameserver supports Echo Capitalization: 1 good Nameserver
XNameserver Timeout checking Echo Capitalization: a.twnic.net.tw
XNameserver Timeout checking Echo Capitalization: nsbackup.ntut.edu.tw
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 1 good Nameserver
XNameserver Timeout checking EDNS512: a.twnic.net.tw
XNameserver Timeout checking EDNS512: nsbackup.ntut.edu.tw
Nameserver doesn't pass all EDNS-Checks: a.twnic.net.tw: OP100: fatal timeout. FLAGS: fatal timeout. V1: fatal timeout. V1OP100: fatal timeout. V1FLAGS: fatal timeout. DNSSEC: fatal timeout. V1DNSSEC: fatal timeout. NSID: fatal timeout. COOKIE: fatal timeout. CLIENTSUBNET: fatal timeout.
Nameserver doesn't pass all EDNS-Checks: anytld.apnic.net: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: ok. V1DNSSEC: ok. NSID: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found (ns4-de1.apnic.net). COOKIE: fatal timeout. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: csie.ntut.edu.tw: OP100: no result. FLAGS: no result. V1: no result. V1OP100: no result. V1FLAGS: no result. DNSSEC: no result. V1DNSSEC: no result. NSID: no result. COOKIE: no result. CLIENTSUBNET: no result.
Nameserver doesn't pass all EDNS-Checks: csie.ntut.edu.tw: OP100: no result. FLAGS: no result. V1: no result. V1OP100: no result. V1FLAGS: no result. DNSSEC: no result. V1DNSSEC: no result. NSID: no result. COOKIE: no result. CLIENTSUBNET: no result.
Nameserver doesn't pass all EDNS-Checks: nsbackup.ntut.edu.tw: OP100: fatal timeout. FLAGS: fatal timeout. V1: fatal timeout. V1OP100: fatal timeout. V1FLAGS: fatal timeout. DNSSEC: fatal timeout. V1DNSSEC: fatal timeout. NSID: fatal timeout. COOKIE: fatal timeout. CLIENTSUBNET: fatal timeout.
AGood: All SOA have the same Serial Number
Warning: No CAA entry with issue/issuewild found, every CAA can create a certificate. Read https://en.wikipedia.org/wiki/DNS_Certification_Authority_Authorization to learn some basics about the idea of CAA. Your name server must support such an entry. Not all dns providers support CAA entries.
AGood: All checks /.well-known/acme-challenge/random-filename without redirects answer with the expected http status 404 - Not Found. Creating a Letsencrypt certificate via http-01 challenge should work. If it doesn't work: Check your vHost configuration (apachectl -S, httpd -S, nginx -T). Every combination of port and ServerName / ServerAlias (Apache) or Server (Nginx) must be unique. Merge duplicated entries in one vHost. If you use an IIS, extensionless files must be allowed in the /.well-known/acme-challenge subdirectory. Create a web.config in that directory. Content: <configuration><system.webServer><staticContent><mimeMap fileExtension="." mimeType="text/plain" /></staticContent></system.webServer></configuration>. If you have a redirect http ⇒ https, that's ok, Letsencrypt follows such redirects to port 80 / 443 (same or other server). There must be a certificate. But the certificate may be expired, self signed or with a not matching domain name. Checking the validation file Letsencrypt ignores such certificate errors. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
AGood: Domainname is not on the "Specially Designated Nationals And Blocked Persons List" (SDN). That's an US-list of individuals and companies owned or controlled by, or acting for or on behalf of, targeted countries. It also lists individuals, groups, and entities, such as terrorists and narcotics traffickers designated under programs that are not country-specific. Collectively, such individuals and companies are called "Specially Designated Nationals" or "SDNs." Their assets are blocked and U.S. persons are generally prohibited from dealing with them. So if a domain name is on that list, it's impossible to create a Letsencrypt certificate with that domain name. Check the list manual - https://www.treasury.gov/resource-center/sanctions/sdn-list/pages/default.aspx
https://pl.csie.ntut.edu.tw/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
404
2.460 seconds
Warning: 404 needs more then one second
ADuration: 305160 milliseconds, 305.160 seconds


8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
pl.csie.ntut.edu.tw
140.124.181.82
443
Certificate/chain invalid
Tls12
DiffieHellman
2048
Aes128
128
Sha256
error checking OCSP stapling
ok
pl.csie.ntut.edu.tw
140.124.181.82
443
Certificate/chain invalid
Tls12

DiffieHellman
2048
Aes128
128
Sha256
error checking OCSP stapling
ok
  no Tls.1.2
no Tls.1.1
no Tls.1.0
no Tls.1.2
no Tls.1.1
no Tls.1.0
Chain - incomplete
1CN=pl.csie.ntut.edu.tw

pl.csie.ntut.edu.tw
pl.csie.ntut.edu.tw
443
Certificate/chain invalid
Tls12
DiffieHellman
2048
Aes128
128
Sha256
error checking OCSP stapling
ok
pl.csie.ntut.edu.tw
pl.csie.ntut.edu.tw
443
Certificate/chain invalid
Tls12

DiffieHellman
2048
Aes128
128
Sha256
error checking OCSP stapling
ok
  no Tls.1.2
no Tls.1.1
no Tls.1.0
no Tls.1.2
no Tls.1.1
no Tls.1.0
Chain - incomplete
1CN=pl.csie.ntut.edu.tw


9. Certificates

1.
1.
CN=pl.csie.ntut.edu.tw
19.01.2019
19.04.2019
346 days expired
pl.csie.ntut.edu.tw - 1 entry
1.
1.
CN=pl.csie.ntut.edu.tw
19.01.2019

19.04.2019
346 days expired
pl.csie.ntut.edu.tw - 1 entry

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:03382AA9F72B54F1E67363712E1083537172
Thumbprint:67B3938CFAB6FCB92DB3A01D32457E423BD90E59
SHA256 / Certificate:/lIus635Kp4bcnAtw+ee3CqBfhxru6+/K2oSIv/8r+w=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):03ff30489f12239a2d08206d15937c6d0ee3e8618c806cd84f416718a1307945
SHA256 hex / Subject Public Key Information (SPKI):d3a11d6e464c24a83e0c0dbff6ce256f3be7137c46d8a45c58d8e1c52019190e
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:http://ocsp.int-x3.letsencrypt.org
OCSP - must staple:no
Certificate Transparency:yes

NotTimeValid: A required certificate is not within its validity period when verifying against the current system clock or the timestamp in the signed file.

2.
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
17.03.2016
17.03.2021
expires in 352 days


2.
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
17.03.2016

17.03.2021
expires in 352 days


KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:0A0141420000015385736A0B85ECA708
Thumbprint:E6A3B45B062D509B3382282D196EFE97D5956CCB
SHA256 / Certificate:JYR9Zo608E/dQLErawdAxWfafQJDCOtsLJb+QdneIY0=
SHA256 hex / Cert (DANE * 0 1):25847d668eb4f04fdd40b12b6b0740c567da7d024308eb6c2c96fe41d9de218d
SHA256 hex / PublicKey (DANE * 1 1):60b87575447dcba2a36b7d11ac09fb24a9db406fee12d2cc90180517616e8a18
SHA256 hex / Subject Public Key Information (SPKI):cbb93d32de628874a3ecfb92affadc97f1b795f84cc6f24221a089dee1aa25ad
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:http://isrg.trustid.ocsp.identrust.com
OCSP - must staple:no
Certificate Transparency:no


3.
CN=DST Root CA X3, O=Digital Signature Trust Co.
30.09.2000
30.09.2021
expires in 549 days


3.
CN=DST Root CA X3, O=Digital Signature Trust Co.
30.09.2000

30.09.2021
expires in 549 days


KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA-1 with RSA Encryption
Serial Number:44AFB080D6A327BA893039862EF8406B
Thumbprint:DAC9024F54D8F6DF94935FB1732638CA6AD77C13
SHA256 / Certificate:BocmAzGnJAPZCfEF5pvPDTLhvSST/8bZIG0RvNZ3Bzk=
SHA256 hex / Cert (DANE * 0 1):0687260331a72403d909f105e69bcf0d32e1bd2493ffc6d9206d11bcd6770739
SHA256 hex / PublicKey (DANE * 1 1):563b3caf8cfef34c2335caf560a7a95906e8488462eb75ac59784830df9e5b2b
SHA256 hex / Subject Public Key Information (SPKI):29cc40db5e2de462a311cbbafaa1dc466960002335ecdf3317f2cd05c1d0bedf
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no



10. Last Certificates - Certificate Transparency Log Check

1. Source CertSpotter - active certificates (one check per day)

Issuerlast 7 daysactivenum Certs
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
0
1
2

CertSpotter-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
1418989020
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-02-08 11:23:34
2020-05-08 11:23:34
pl.csie.ntut.edu.tw - 1 entries


1235837617
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2019-11-10 10:20:18
2020-02-08 10:20:18
pl.csie.ntut.edu.tw - 1 entries



2. Source crt.sh - old and new certificates, sometimes very slow (Update 2020-01-11: Should now work again - code updated. Old message: currently no newer certificates - read Crt.sh has stopped - Letsencrypt-forum - may work next week again - 2019-12-02 - but I must check the code).

Issuerlast 7 daysactivenum Certs
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
0 /0 new
1
16

CRT-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
2442228738
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-02-08 10:23:34
2020-05-08 09:23:34
pl.csie.ntut.edu.tw
1 entries


2094070590
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2019-11-10 09:20:18
2020-02-08 09:20:18
pl.csie.ntut.edu.tw
1 entries


1775608362
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2019-08-13 05:44:24
2019-11-11 06:44:24
pl.csie.ntut.edu.tw
1 entries


1749292402
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2019-08-04 09:36:50
2019-11-02 10:36:50
pl.csie.ntut.edu.tw
1 entries


1472556046
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2019-05-13 00:44:26
2019-08-11 00:44:26
pl.csie.ntut.edu.tw
1 entries


1125844787
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2019-01-19 20:08:52
2019-04-19 19:08:52
pl.csie.ntut.edu.tw
1 entries


1088649449
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2019-01-07 07:50:22
2019-04-07 06:50:22
pl.csie.ntut.edu.tw
1 entries


1088607936
precert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2019-01-07 07:19:19
2019-04-07 06:19:19
pl.csie.ntut.edu.tw
1 entries


1059250628
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2018-12-26 15:43:54
2019-03-26 15:43:54
pl.csie.ntut.edu.tw
1 entries


1059242773
precert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2018-12-26 15:39:16
2019-03-26 15:39:16
pl.csie.ntut.edu.tw
1 entries


1059182981
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2018-12-26 14:59:11
2019-03-26 14:59:11
pl.csie.ntut.edu.tw
1 entries


1059150339
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2018-12-26 14:35:42
2019-03-26 14:35:42
pl.csie.ntut.edu.tw
1 entries


1059128629
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2018-12-26 14:20:28
2019-03-26 14:20:28
pl.csie.ntut.edu.tw
1 entries


851393278
precert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2018-10-11 22:32:50
2019-01-09 23:32:50
pl.csie.ntut.edu.tw
1 entries


613695302
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2018-07-13 14:54:01
2018-10-11 14:54:01
pl.csie.ntut.edu.tw
1 entries


396000053
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2018-04-12 23:13:21
2018-07-11 23:13:21
pl.csie.ntut.edu.tw
1 entries



11. Html-Content - Entries

Summary

Subresource Integrity (SRI)
DomainnameHtmlElementrel/property∑ size∑ problems∑ int.∑ ext.∑ Origin poss.∑ SRI ParseErrors∑ SRI valid∑ SRI missing
https://pl.csie.ntut.edu.tw/
140.124.181.82
frame

5

0


0
0
0


meta
other
1

0


0
0
0

Details

DomainnameHtml-Elementname/equiv/ property/relhref/src/contentHttpStatusmsgStatus
https://pl.csie.ntut.edu.tw/
140.124.181.82
frame
src
php/left.html


1
ok








frame
src
php/main.html


1
ok








frame
src
php/menu.html


1
ok








frame
src
php/untitled.html


2
ok








meta
Content-Type
text/html; charset=utf-8


1
ok








12. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
pl.csie.ntut.edu.tw
0

no CAA entry found
1
0
csie.ntut.edu.tw
0

no CAA entry found
1
0
ntut.edu.tw
0

no CAA entry found
1
0
edu.tw
0

no CAA entry found
1
0
tw
0

no CAA entry found
1
0


13. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
pl.csie.ntut.edu.tw

ok
1
0
_acme-challenge.pl.csie.ntut.edu.tw

Name Error - The domain name does not exist
1
0
_acme-challenge.pl.csie.ntut.edu.tw.pl.csie.ntut.edu.tw

Name Error - The domain name does not exist
1
0


14. Portchecks

No Port informations found. The feature is new (startet 2019-07-09), so recheck this domain.



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Last Result: https://check-your-website.server-daten.de/?q=pl.csie.ntut.edu.tw - 2020-02-14 07:46:53


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