DNS Spy
Connectivity: 100%
The following nameservers are available and responding correctly for DNS queries for your domain schiphol.nl.
| Nameserver | IP address(es) | SOA serial |
|---|---|---|
| nsplus5.2is.nl. |
208.94.148.13
2600:1800:5::1 |
2023061604 |
| nsplus6.2is.be. |
208.80.124.13
2600:1801:6::1 |
2023061604 |
| nsplus7.2is.eu. |
208.80.126.13
2600:1802:7::1 |
2023061604 |
Good news, no warnings or errors were found.
We could not find any recommendations at this time.
Good news, we detected the following achievements in your DNS configuration. Each of these checks has increased your DNS Spy score.
- All nameservers reply with the same SOA serial number.
- The nameserver IPs are distributed across multiple subnets.
- All nameservers are online.
- Nameservers are available over IPv4.
- Nameservers are available over IPv6.
Performance: 100%
We tested each nameserver and measured the following response times.
| Nameserver | IP address(es) | Response time |
|---|---|---|
| nsplus5.2is.nl. |
208.94.148.13
2600:1800:5::1 |
3ms
3ms |
| nsplus6.2is.be. |
208.80.124.13
2600:1801:6::1 |
3ms
7ms |
| nsplus7.2is.eu. |
208.80.126.13
2600:1802:7::1 |
3ms
7ms |
Good news, no warnings or errors were found.
We could not find any recommendations at this time.
Good news, we detected the following achievements in your DNS configuration. Each of these checks has increased your DNS Spy score.
- Nameserver nsplus5.2is.nl. (208.94.148.13) replied quickly (< 50ms).
- Nameserver nsplus5.2is.nl. (2600:1800:5::1) replied in a reasonable time.
- Nameserver nsplus6.2is.be. (208.80.124.13) replied quickly (< 50ms).
- Nameserver nsplus6.2is.be. (2600:1801:6::1) replied in a reasonable time.
- Nameserver nsplus7.2is.eu. (208.80.126.13) replied quickly (< 50ms).
- Nameserver nsplus7.2is.eu. (2600:1802:7::1) replied in a reasonable time.
Resilience & Security: 60%
These are the locations and providers of your nameservers.
| Nameserver | Location | ISP |
|---|---|---|
| nsplus5.2is.nl. |
IPv4: US
IPv6: US |
AS16552 - TIGGEE, US
AS16552 - TIGGEE, US |
| nsplus6.2is.be. |
IPv4: US
IPv6: US |
AS16552 - TIGGEE, US
AS16552 - TIGGEE, US |
| nsplus7.2is.eu. |
IPv4: US
IPv6: US |
AS16552 - TIGGEE, US
AS16552 - TIGGEE, US |
We detected the following errors or warnings about your DNS configuration. These caused your DNS rating to be lowered. Resolving these will grant a higher DNS Spy rating for your domain.
- All IPv4 nameservers are hosted by the same provider (AS16552 - TIGGEE, US). Consider spreading the nameservers across multiple DNS providers for increased redundancy.
- All IPv6 nameservers are hosted by the same provider (AS16552 - TIGGEE, US). Consider spreading the nameservers across multiple DNS providers for increased redundancy.
We detected some possible recommendations for you to consider. No penalties were given for these, but resolving them can give you a higher DNS score.
- All IPv4 nameservers appear to be hosted in the same country (US). You might want to consider spreading the nameservers geographically.
- All IPv6 nameservers appear to be hosted in the same country (US). You might want to consider spreading the nameservers geographically.
- No CAA records found. Consider adding CAA records, as it adds increased security by limiting which Certificate Authorities can issue certificates for this domain. (more info)
Good news, we detected the following achievements in your DNS configuration. Each of these checks has increased your DNS Spy score.
- You have more than 1 nameserver.
- DNSSEC is enabled.
- The nameservers are being operated from multiple domains (2is.nl, 2is.be, 2is.eu).
DNS records: 93%
Our scans detected the following publicly available DNS records.
| Record | TTL | Value | |
|---|---|---|---|
| A | schiphol.nl | 600s | 20.105.183.25 |
| DNSKEY | schiphol.nl | 1h |
ZSK | RSA/SHA-256 | AwEAAaSGnT8AYKqAqC9vSy3gbAy3+pHwBhudp0ewpeu4pn//FmdGNcq5 Vy8ETqSn9/jpZP9/Sjk9Vc+Jl5t46iGP3+zZMiDz5KhMaaTzMk8m0sUY evrJl4G2EkNHrciArcIb5tNXktkzRCvOr9SEE+m9P2cqpdk0fnEx15Qn cfLR4sjb ZSK | RSA/SHA-256 | AwEAAab0RYsTOI4WAmV8AXluDH6yqsKQtVHoFYggSCvn0jWzw3oXuqD3 OjbCEQE6Y2DLP8GuHLIkRdXldx4VX4IkGPmtCxhGfjWfRs0FWewC+VEL LVrsrVZJ5jQcdtlmcVBaLlLuawroGV8bt7WVsbpl9Nwm+S7cXjDKjrOb L4GY4zKz KSK | RSA/SHA-256 | AwEAAaxPpLyvN+0hX4gOQEWcD/lFJ9OzURFoTtfWDH/baTshh2IzeRSk m6+u/kD3Z/cpeU/5qVZ+FLqukcz+gMVPZQpRUqEGiF6RqHWwk28BELLq sXU+Te0AXpI+C+JsTN/gSbN6YsawLcTiNf/eMcKX/3yVBH7nYDsmV0k/ UeNhqj/PmKZ5S5NIvVXxUvrVzsC0+UAcE6oLsoQJzoJ0cABAOTz/bY2A CgvmEu47CjW3mYj34pSlCFNLLbuoloiPS5x9j29P4q2u6qXUtKj8NYiN nhzJYyMFvqc+bINHboC8BYecfDUicAkX4OaZtuh990QPe1B/Z4HxgvEw TMirWcdIIjk= |
| MX | schiphol.nl | 600s | 0 schiphol-nl.mail.protection.outlook.com. |
| NS | schiphol.nl | 1h |
nsplus5.2is.nl. nsplus6.2is.be. nsplus7.2is.eu. |
| SOA | schiphol.nl | 4h | nsplus5.2is.nl. domain-admin.2is.nl. 2023061604 14400 3600 1209600 3600 |
| TXT | schiphol.nl | 600s |
"1VNQiiz2JU9eFWMc/zN1bPmhKAt5jy1CkiGxylD3rbdR2n+UxYtrhar5fausAus4u2ze4AdIBNlQnJHjvNqwQg==" "NV Luchthaven Schiphol" "TtOhnRluEDXZAie80zu7vrWlr2nR2dS8fbqBw4WOhoADC3z0ydsn9yYawd5C9EoFmDaCGc46xeOnPvrvd3tvaA==" "apple-domain-verification=zkUxWMO2CMthxLy2" "atlassian-domain-verification=rrsSkUATPW2jOknRmfP4xqenSlj/4gqtm31hqF6O0j2UHLO9LS5nIXgoyqHOhdGq" "d365mktkey=U74phsh2VP9leJd1W9n40wQGUl3cHm0QMPUr4tXNrzcx" "docusign=184db8fa-72c2-4cb6-a91d-c17c532a654b" "facebook-domain-verification=vo1pv54xc6fy1g9nfuqpdh4uuc6wc7" "miro-verification=790022ef9a3bdede3c224868fc58d551d98fb485" "onetrust-domain-verification=5924e5b0da7f4225bd8a124cf183e898" "onetrust-domain-verification=6ff21c94daa54997946a34cd3a9336bd" "v=spf1 ip4:145.35.168.8 ip4:145.35.168.9 ip4:5.172.153.128/25 ip4:195.72.35.96/28 ip4:95.154.198.192/26 ip4:193.173.152.143 include:spf.protection.outlook.com include:spf.flowmailer.net include:customers.clickdimensions.com include:_spf.salesforce.com inc" "lude:asp-spf1.yardi.com include:asp-spf2.yardi.com -all" |
| TXT | _dmarc.schiphol.nl | 600s | "v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;" |
| SRV | _sip._tls.schiphol.nl | 1h | 100 1 443 sipdir.online.lync.com. |
| SRV | _sipfederationtls._tcp.schiphol.nl | 1h | 100 1 5061 sipfed.online.lync.com. |
| A | autodiscover.schiphol.nl | 600s | 145.35.168.22 |
| CNAME | cdn.schiphol.nl | 600s | cdn.schiphol.nl.cdn.cloudflare.net. |
| TXT | cm._domainkey.schiphol.nl | 600s | "k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC2A64mF7LtzdhkI2hlAs+x7m3+MLmDRd82A+7bKNCmSHtxDNw5zLgf3diCc0QAVC6fNhiEaLKULTUfivPCDnNcmFGnVjQv+TzdWEPE9KDiD7vQc1MaDHOEuM9Uf57+szT87u9ofXhCAbz1Ug2hgzaAz0h5dyXwirb95XP9kD6dBQIDAQAB" |
| CNAME | confluence.schiphol.nl | 600s | schiphol.avisi.net. |
| CNAME | enterpriseenrollment.schiphol.nl | 1h | enterpriseenrollment.manage.microsoft.com. |
| CNAME | enterpriseregistration.schiphol.nl | 1h | enterpriseregistration.windows.net. |
| CNAME | info.schiphol.nl | 600s | home.nl.uu.net. |
| CNAME | jira.schiphol.nl | 600s | schiphol.avisi.net. |
| CNAME | lyncdiscover.schiphol.nl | 1h | webdir.online.lync.com. |
| CNAME | msoid.schiphol.nl | 1h | clientconfig.microsoftonline-p.net. |
| CNAME | ops.schiphol.nl | 600s | ops-snbv.msappproxy.net. |
| A | secure.schiphol.nl | 600s | 46.249.200.48 |
| CNAME | sip.schiphol.nl | 1h | sipdir.online.lync.com. |
| A | vpn.schiphol.nl | 600s | 77.241.232.154 |
| CNAME | webshop.schiphol.nl | 600s | webshop-snbv.msappproxy.net. |
| CNAME | www.schiphol.nl | 4h | www.schiphol.nl.cdn.cloudflare.net. |
We detected the following errors or warnings about your DNS configuration. These caused your DNS rating to be lowered. Resolving these will grant a higher DNS Spy rating for your domain.
- Consider giving the MX record for "schiphol.nl" a longer TTL, as those don't change often (1h+).
We detected some possible recommendations for you to consider. No penalties were given for these, but resolving them can give you a higher DNS score.
- You have DMARC records configured, but the "p=none" policy only triggers reports to your e-mail address, the receiver is instructed to not take actions.
- No IPv6 record has been found on the zone apex (schiphol.nl). Consider enabling IPv6 in the infrastructure by adding an AAAA record on this domain.
Good news, we detected the following achievements in your DNS configuration. Each of these checks has increased your DNS Spy score.
- Single MX record but with multiple IPs associated to it.
- The NS records have a long TTL (1h+).
- Your SOA serial number follows the best practice YYYYMMDDxx format.
- SPF records have been found.
- SPF records are set up restrictively.
- DMARC records have been found.
- Found a root (apex) DNS record.
- Found a www DNS record.
- The active nameservers match the NS records.
- The DNS records appear to be RFC compliant.
Have a look at other public DNS scans.