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


 

 

X

 

DNS-problem - authoritative Nameserver refused, not defined or timeout

 

Checked:
04.02.2025 18:22:14

 

Older results

No older results found

 

1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
treinamento.sei.riobranco.ac.gov.br


yes
5
2
www.treinamento.sei.riobranco.ac.gov.br


yes
5
2
*.sei.riobranco.ac.gov.br
A

yes



A

yes



AAAA

yes



AAAA

yes



CNAME

yes



CNAME

yes


*.treinamento.sei.riobranco.ac.gov.br
A

yes



A

yes



AAAA

yes



AAAA

yes



CNAME

yes



CNAME

yes


 

2. DNSSEC

Zone (*)DNSSEC - Informations


Zone: (root)

(root)
1 DS RR published






DS with Algorithm 8, KeyTag 20326, DigestType 2 and Digest 4G1EuAuPHTmpXAsNfGXQhFjogECbvGg0VxBCN8f47I0=






Status: Valid because published






3 DNSKEY RR found






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






Public Key with Algorithm 8, KeyTag 26470, Flags 256






Public Key with Algorithm 8, KeyTag 38696, Flags 257 (SEP = Secure Entry Point)






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 21.02.2025, 00:00:00 +, Signature-Inception: 31.01.2025, 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: br

br
1 DS RR in the parent zone found






DS with Algorithm 13, KeyTag 38298, DigestType 2 and Digest ny1Jk/R7DydR3gAH1wonVO5TL+NzdhFU2ep6jLnY6hg=






1 RRSIG RR to validate DS RR found






RRSIG-Owner br., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 17.02.2025, 05:00:00 +, Signature-Inception: 04.02.2025, 04:00:00 +, KeyTag 26470, Signer-Name: (root)






Status: Good - Algorithmus 8 and DNSKEY with KeyTag 26470 used to validate the DS RRSet in the parent zone






2 DNSKEY RR found






Public Key with Algorithm 13, KeyTag 38298, Flags 257 (SEP = Secure Entry Point)






Public Key with Algorithm 13, KeyTag 64444, Flags 256






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner br., Algorithm: 13, 1 Labels, original TTL: 21600 sec, Signature-expiration: 16.02.2025, 12:00:00 +, Signature-Inception: 26.01.2025, 12:00:00 +, KeyTag 38298, Signer-Name: br






Status: Good - Algorithmus 13 and DNSKEY with KeyTag 38298 used to validate the DNSKEY RRSet






Status: Valid Chain of trust. Parent-DS with Algorithm 13, KeyTag 38298, DigestType 2 and Digest "ny1Jk/R7DydR3gAH1wonVO5TL+NzdhFU2ep6jLnY6hg=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone



Zone: gov.br

gov.br
1 DS RR in the parent zone found






DS with Algorithm 13, KeyTag 7840, DigestType 2 and Digest SqXvICMLxaCPw1J/UinazGiUhEd0YZU3aPMINr6/jQ4=






1 RRSIG RR to validate DS RR found






RRSIG-Owner gov.br., Algorithm: 13, 2 Labels, original TTL: 21600 sec, Signature-expiration: 18.02.2025, 12:15:12 +, Signature-Inception: 04.02.2025, 11:15:12 +, KeyTag 64444, Signer-Name: br






Status: Good - Algorithmus 13 and DNSKEY with KeyTag 64444 used to validate the DS RRSet in the parent zone






1 DNSKEY RR found






Public Key with Algorithm 13, KeyTag 7840, Flags 257 (SEP = Secure Entry Point)






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner gov.br., Algorithm: 13, 2 Labels, original TTL: 21600 sec, Signature-expiration: 18.02.2025, 17:20:13 +, Signature-Inception: 04.02.2025, 16:20:13 +, KeyTag 7840, Signer-Name: gov.br






Status: Good - Algorithmus 13 and DNSKEY with KeyTag 7840 used to validate the DNSKEY RRSet






Status: Valid Chain of trust. Parent-DS with Algorithm 13, KeyTag 7840, DigestType 2 and Digest "SqXvICMLxaCPw1J/UinazGiUhEd0YZU3aPMINr6/jQ4=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone



Zone: ac.gov.br

ac.gov.br
0 DS RR in the parent zone found






DS-Query in the parent zone has a valid NSEC RR as result with the domain name between the NSEC-Owner "ac.gov.br" and the NextOwner "ac-jus.gov.br". So the parent zone confirmes the non-existence of a DS RR.
Bitmap: NS, RRSIG, NSEC






0 DNSKEY RR found









Zone: riobranco.ac.gov.br

riobranco.ac.gov.br
0 DS RR in the parent zone found






0 DNSKEY RR found









Zone: sei.riobranco.ac.gov.br

sei.riobranco.ac.gov.br
0 DS RR in the parent zone found



Zone: treinamento.sei.riobranco.ac.gov.br

treinamento.sei.riobranco.ac.gov.br
0 DS RR in the parent zone found



Zone: www.treinamento.sei.riobranco.ac.gov.br

www.treinamento.sei.riobranco.ac.gov.br
0 DS RR in the parent zone found

 

3. Name Servers

DomainNameserverNS-IP
riobranco.ac.gov.br
  179.255.9.2.ac.gov.br


  201.57.124.2.ac.gov.br


  201.73.243.82.ac.gov.br


T  pmrbns1.ac.gov.br
179.255.9.2
Porto Velho/Rondônia/Brazil (BR) - V tal


T  pmrbns2.ac.gov.br
201.73.243.82
Rio Branco/Acre/Brazil (BR) - Claro S.A.


T  pmrbns3.ac.gov.br
201.57.124.2
Rio Branco/Acre/Brazil (BR) - Claro S.A

ac.gov.br
T  ns1.ac.gov.br
149.78.123.210
Barueri/São Paulo/Brazil (BR) - Sitelbra Ltda


  ns2.ac.gov.br
186.219.246.131
Ji Paraná/Rondônia/Brazil (BR) - NBS TELECOM

gov.br
  a.dns.br / a3.a.dns.br
200.219.148.10
São Paulo/Brazil (BR) - Núcleo de Inf. e Coord. do Ponto BR - NIC.BR


 
2001:12f8:6::10
Pinheiros/São Paulo/Brazil (BR) - Núcleo de Inf. e Coord. do Ponto BR - NIC.BR


  b.dns.br / b2.b.dns.br
200.189.41.10
Pinheiros/São Paulo/Brazil (BR) - Núcleo de Inf. e Coord. do Ponto BR - NIC.BR


T 
2001:12f8:8::10
Pinheiros/São Paulo/Brazil (BR) - Núcleo de Inf. e Coord. do Ponto BR - NIC.BR


  c.dns.br / c8.c.dns.br
200.192.233.10
Pinheiros/São Paulo/Brazil (BR) - Núcleo de Inf. e Coord. do Ponto BR - NIC.BR


 
2001:12f8:a::10
Pinheiros/São Paulo/Brazil (BR) - Núcleo de Inf. e Coord. do Ponto BR - NIC.BR


  d.dns.br / d3.d.dns.br
200.219.154.10
Pinheiros/São Paulo/Brazil (BR) - Núcleo de Inf. e Coord. do Ponto BR - NIC.BR


 
2001:12f8:4::10
Pinheiros/São Paulo/Brazil (BR) - Núcleo de Inf. e Coord. do Ponto BR - NIC.BR


  e.dns.br / e7.e.dns.br
200.229.248.10
Pinheiros/São Paulo/Brazil (BR) - Núcleo de Inf. e Coord. do Ponto BR - NIC.BR


 
2001:12f8:2::10
Pinheiros/São Paulo/Brazil (BR) - Núcleo de Inf. e Coord. do Ponto BR - NIC.BR


  f.dns.br / f7.a.f.dns.br
200.219.159.10
Pinheiros/São Paulo/Brazil (BR) - Núcleo de Inf. e Coord. do Ponto BR - NIC.BR


 
2001:12f8:c::10
Pinheiros/São Paulo/Brazil (BR) - Núcleo de Inf. e Coord. do Ponto BR - NIC.BR

br
  a.dns.br / a1.a.dns.br


  b.dns.br / b7.b.dns.br


  c.dns.br / c1.c.dns.br


  d.dns.br / d4.d.dns.br


  e.dns.br / e8.e.dns.br


  f.dns.br / f7.a.f.dns.br

 

4. SOA-Entries


Domain:br
Zone-Name:br
Primary:a.dns.br
Mail:hostmaster.registro.br
Serial:2025035416
Refresh:1800
Retry:900
Expire:604800
TTL:900
num Entries:6


Domain:gov.br
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:1


Domain:gov.br
Zone-Name:gov.br
Primary:a.dns.br
Mail:hostmaster.registro.br
Serial:2025035416
Refresh:1800
Retry:900
Expire:604800
TTL:900
num Entries:11


Domain:ac.gov.br
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:1


Domain:ac.gov.br
Zone-Name:ac.gov.br
Primary:ns1.ac.gov.br
Mail:srvgst005.ac.gov.br
Serial:2023042801
Refresh:3600
Retry:3600
Expire:1209600
TTL:21600
num Entries:1


Domain:riobranco.ac.gov.br
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:6


5. Screenshots

No Screenshot listed, because no url-check with https + http status 200-299, 400-599 + not-ACME-check found.

 

 

6. Url-Checks

DomainnameHttp-StatusredirectSec.G








 

7. Comments


1. General Results, most used to calculate the result

Aname "treinamento.sei.riobranco.ac.gov.br" is subdomain, public suffix is ".ac.gov.br", top-level-domain is ".br", top-level-domain-type is "country-code", Country is Brazil, tld-manager is "Comite Gestor da Internet no Brasil", num .br-domains preloaded: 3386 (complete: 263653)
HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
XFatal error: Nameserver doesn't support TCP connection: b.dns.br: Timeout
XFatal error: Nameserver doesn't support TCP connection: b.dns.br / 2001:12f8:8::10: Timeout
XFatal error: Nameserver doesn't support TCP connection: ns1.ac.gov.br / 149.78.123.210: Timeout
XFatal error: Nameserver doesn't support TCP connection: pmrbns1.ac.gov.br / 179.255.9.2: Timeout
XFatal error: Nameserver doesn't support TCP connection: pmrbns2.ac.gov.br / 201.73.243.82: Timeout
XFatal error: Nameserver doesn't support TCP connection: pmrbns3.ac.gov.br / 201.57.124.2: Timeout
BNo _mta-sts TXT record found (mta-sts: Mail Transfer Agent Strict Transport Security - see RFC 8461). Read the result of server-daten.de (Url-Checks, Comments, Connections and DomainServiceRecords) to see a complete definition. Domainname: _mta-sts.treinamento.sei.riobranco.ac.gov.br

2. Header-Checks

U

No https result with http status 2** or 4** (standard-check) found, no header checked.

3. DNS- and NameServer - Checks

AInfo:: 2 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 2 Name Servers.
AInfo:: 2 Queries complete, 2 with IPv6, 0 with IPv4.
AGood: All DNS Queries done via IPv6.
AGood: Some ip addresses of name servers found with the minimum of two DNS Queries. One to find the TLD-Zone, one to ask the TLD-Zone.ns1.ac.gov.br (149.78.122.130), ns2.ac.gov.br (186.219.246.131)
AGood (1 - 3.0):: An average of 1.0 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 2 different Name Servers found: ns1.ac.gov.br, ns2.ac.gov.br, 2 Name Servers included in Delegation: ns1.ac.gov.br, ns2.ac.gov.br, 2 Name Servers included in 2 Zone definitions: ns1.ac.gov.br, ns2.ac.gov.br, 1 Name Servers listed in SOA.Primary: ns1.ac.gov.br.
AGood: Only one SOA.Primary Name Server found.: ns1.ac.gov.br.
AGood: SOA.Primary Name Server included in the delegation set.: ns1.ac.gov.br.
AGood: All Name Server Domain Names have a Public Suffix.
AGood: All Name Server Domain Names ending with a Public Suffix have minimal one IPv4- or IPv6 address.
AGood: All Name Server ip addresses are public.
AInfo: Ipv4-Subnet-list: 2 Name Servers, 2 different subnets (first Byte): 149., 186., 2 different subnets (first two Bytes): 149.78., 186.219., 2 different subnets (first three Bytes): 149.78.123., 186.219.246.
AExcellent: Every Name Server IPv4-address starts with an unique Byte.
XNameserver Timeout checking Echo Capitalization: b.dns.br / 2001:12f8:8::10
XNameserver Timeout checking Echo Capitalization: ns1.ac.gov.br / 149.78.123.210
XNameserver Timeout checking Echo Capitalization: pmrbns1.ac.gov.br / 179.255.9.2
XNameserver Timeout checking Echo Capitalization: pmrbns2.ac.gov.br / 201.73.243.82
XNameserver Timeout checking Echo Capitalization: pmrbns3.ac.gov.br / 201.57.124.2
XNameserver Timeout checking EDNS512: b.dns.br / 2001:12f8:8::10
XNameserver Timeout checking EDNS512: ns1.ac.gov.br / 149.78.123.210
XNameserver Timeout checking EDNS512: pmrbns1.ac.gov.br / 179.255.9.2
XNameserver Timeout checking EDNS512: pmrbns2.ac.gov.br / 201.73.243.82
XNameserver Timeout checking EDNS512: pmrbns3.ac.gov.br / 201.57.124.2
Nameserver doesn't pass all EDNS-Checks: 179.255.9.2.ac.gov.br: 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: 201.57.124.2.ac.gov.br: 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: 201.73.243.82.ac.gov.br: 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: b.dns.br / 2001:12f8:8::10: 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: ns1.ac.gov.br / 149.78.123.210: 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: pmrbns1.ac.gov.br / 179.255.9.2: 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: pmrbns2.ac.gov.br / 201.73.243.82: 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: pmrbns3.ac.gov.br / 201.57.124.2: 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.

4. Content- and Performance-critical Checks

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
ADuration: 570287 milliseconds, 570.287 seconds

 

8. Connections

No connection informations found. Perhaps only http - connections.

 

9. Certificates

No certificate informations found. Perhaps only http - connections.

 

10. Last Certificates - Certificate Transparency Log Check

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

No CertSpotter - CT-Log entries found

 

2. Source crt.sh - old and new certificates, sometimes very slow - only certificates with "not after" > of the last months are listed

No CRT - CT-Log entries found

 

11. Html-Content - Entries

No Html-Content entries found. Only checked if https + status 200/401/403/404

 

12. Html-Parsing via https://validator.w3.org/nu/


No https result http status 200 and Content-Type text/html or text/xml found, no Html-Parsing - Check

 

13. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: ns1.ac.gov.br, ns2.ac.gov.br

 

QNr.DomainTypeNS used
1
br
NS
b.root-servers.net (2001:500:200::b)

Answer: a.dns.br, b.dns.br, c.dns.br, d.dns.br, e.dns.br, f.dns.br
2
ns1.ac.gov.br: 149.78.122.130
NS
a.dns.br (2001:12f8:6::10)

Answer: ns2.ac.gov.br
186.219.246.131

 

14. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
riobranco.ac.gov.br



5
2
ac.gov.br
0

no CAA entry found
2
1
gov.br
0

no CAA entry found
1
0
br
0

no CAA entry found
1
0

 

15. TXT - Entries

No TXT entries found

 

16. DomainService - Entries

No DomainServiceEntries entries found

 

 

17. Cipher Suites

No Ciphers found

 

18. Portchecks

No open Ports <> 80 / 443 found, so no additional Ports checked.

 

 

Permalink: https://check-your-website.server-daten.de/?i=a0c8715d-7cba-44ca-be18-a1a24dbf448c

 

Last Result: https://check-your-website.server-daten.de/?q=treinamento.sei.riobranco.ac.gov.br - 2025-02-04 18:22:14

 

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