Connectivity: 100%
The following nameservers are available and responding correctly for DNS queries for your domain ruwers.nl.
Nameserver | IP address(es) | SOA serial |
---|---|---|
ns3.firstfind.nl. |
5.157.86.222
2a01:b940:1057::53 |
2021033101 |
ns4.firstfind.nl. |
5.157.87.222
2a01:b940:1058::53 |
2021033101 |
ns5.firstfind.net. |
178.128.248.2
2a03:b0c0:2:d0::1183:f001 |
2021033101 |

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 |
---|---|---|
ns3.firstfind.nl. |
5.157.86.222
2a01:b940:1057::53 |
31ms
27ms |
ns4.firstfind.nl. |
5.157.87.222
2a01:b940:1058::53 |
35ms
27ms |
ns5.firstfind.net. |
178.128.248.2
2a03:b0c0:2:d0::1183:f001 |
35ms
47ms |

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 ns3.firstfind.nl. (5.157.86.222) replied quickly (< 50ms).
- Nameserver ns3.firstfind.nl. (2a01:b940:1057::53) replied in a reasonable time.
- Nameserver ns4.firstfind.nl. (5.157.87.222) replied quickly (< 50ms).
- Nameserver ns4.firstfind.nl. (2a01:b940:1058::53) replied in a reasonable time.
- Nameserver ns5.firstfind.net. (178.128.248.2) replied quickly (< 50ms).
- Nameserver ns5.firstfind.net. (2a03:b0c0:2:d0::1183:f001) replied in a reasonable time.
Resilience & Security: 100%
These are the locations and providers of your nameservers.
Nameserver | Location | ISP |
---|---|---|
ns3.firstfind.nl. |
IPv4: NL
IPv6: NL |
AS48635 - CLDIN-NL TWS, NL
AS48635 - CLDIN-NL TWS, NL |
ns4.firstfind.nl. |
IPv4: NL
IPv6: NL |
AS48635 - CLDIN-NL TWS, NL
AS48635 - CLDIN-NL TWS, NL |
ns5.firstfind.net. |
IPv4: US
IPv6: US |
AS14061 - DIGITALOCEAN-ASN, US
AS14061 - DIGITALOCEAN-ASN, US |

Good news, no warnings or errors were found.
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.
- 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.
- The IPv4 nameservers are distributed among multiple providers.
- The IPv4 nameservers are distributed across multiple locations.
- The IPv6 nameservers are distributed among multiple providers.
- The IPv6 nameservers are distributed across multiple locations.
- DNSSEC is enabled.
- The nameservers are being operated from multiple domains (firstfind.nl, firstfind.net).
DNS records: 100%
Our scans detected the following publicly available DNS records.
Record | TTL | Value | |
---|---|---|---|
A | ruwers.nl | 4h | 185.37.70.80 |
DNSKEY | ruwers.nl | 4h |
ZSK | RSA/SHA-256 | AwEAAbdc7Lo6RDRQDkGgU2Nrtz05mXXoUiYrTxFTXeGxlDEke/rf0xzK q58fA6lfkPIz6JWodCWX/X+j+fHsJnuoIGKvYKhwhJIAQ6Lb7WlX6Irf 9AkxM5HBMIHpj5xUlyK8sePq2nxb7GFoMsNPL8wVx/KDML+2LQFrrfVq pT0bVbAn KSK | RSA/SHA-256 | AwEAAbdlH5glxdYg+6MAQPu+A4pY6Q/XMMtZ/p+2JsA2udno2GimMXDH 2kDDX3QTm7mtgR3zHT2tnQuosVMcMVn5nptuT1cmIhAa6BYKK+iobMr5 Df8es4AyDujPGJFCnuYsVLoXCYMf/RnFlnnr7i0pO9uVAJCtfhVVmdNM 8Wqi1KchwUiIpeY7MBaPihRwkCiLp3uTkY2HchjVHBTfZzowYcS9E6Z/ H6g9Wmysqu0sJiVcI1++TltpStsGAsPHFy9bh7XwNG8fB9IwOaH8O1VT uUE2QvWk8yPIUhaatRLWV9CxvLY9Yq1Ccp81YhnINtVz0OLQraowxjTj ZvQ1f98wfRU= |
MX | ruwers.nl | 24h | 0 ruwers-nl.mail.protection.outlook.com. |
NS | ruwers.nl | 4h |
ns3.firstfind.nl. ns4.firstfind.nl. ns5.firstfind.net. |
SOA | ruwers.nl | 1h | ns3.firstfind.nl. hostmaster.firstfind.nl. 2021033101 16384 2048 1048576 14400 |
TXT | ruwers.nl | 24h | "v=spf1 include:_spf.yourfilter.nl include:spf.protection.outlook.com -all" |
A | *.ruwers.nl | 4h | 185.37.70.80 |
CNAME | autodiscover.ruwers.nl | 24h | autodiscover.outlook.com. |
TXT | default._domainkey.ruwers.nl | 4h | "v=DKIM1; g=*; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxwyOBhCl3OfuUYQ2j2wg8pQLho1o5XQFY3m1Ig7dmPNp/NqfnmtbvY5OowFPqtxzwadJSeLIrX48pAuLD6n1bM8cK4wLStV59mcxAIUYO6RnMeBbGxf93FKD9KFsbnTsOKThfT3HqC0LmRWk2sNF+BORAryBD0Pc2N3AiUsmrac137nqp4ohXdwvIlpU" "RdOzpWoZb5TRUJ+t7kRwvDPBIKkBO8xLgwfmLRpzUAUiyrnRnvOxrtCFDLwKBPdJmz6UHqXsbULhOz3R53bR5vW2W3VivLIkKwgduK32ovLrPKjsPEQ5j3DN+YiDG0CSnSCh5Syh4iimtfPaBYjZlsnUiQIDAQAB" |
CNAME | ftp.ruwers.nl | 4h | server121.yourhosting.nl. |
A | mail.ruwers.nl | 4h | 185.37.70.80 |
CNAME | www.ruwers.nl | 4h | server121.yourhosting.nl. |

Good news, no warnings or errors were found.
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.
- No DMARC records have been found. Consider configuring DMARC for improved e-mail authentication.
- No IPv6 record has been found on the zone apex (ruwers.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 MX record for "ruwers.nl" has a long TTL (1h+).
- 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.
- 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.