knotsystems.com - robtex.com
knotsystems.com
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1774529672 | ||||||
Same first word
knotsystems.com |
DNS History
10 records (6 active, 4 former)
●NSns-1059.awsdns-04.org2026-03-26 → 2026-03-26 · 2 obs
● 2026-03-26 13:23:16
●NSns-2043.awsdns-63.co.uk2026-03-26 → 2026-03-26 · 2 obs
● 2026-03-26 13:23:16
●NSns-443.awsdns-55.com2026-03-26 → 2026-03-26 · 2 obs
● 2026-03-26 13:23:16
●NSns-586.awsdns-09.net2026-03-26 → 2026-03-26 · 2 obs
● 2026-03-26 13:23:16
○MXmx.hover.com.cust.hostedemail.com2026-02-18 → 2026-02-18 · 2 obs
○ 2026-03-26 13:23:16
●MXsmtp.google.com2026-03-26 → 2026-03-26 · 2 obs
● 2026-03-26 13:23:16
○A216.40.34.412026-02-18 → 2026-02-18 · 2 obs
○ 2026-03-26 13:23:16
●A52.4.221.1382026-03-26 → 2026-03-26 · 2 obs
● 2026-03-26 13:23:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | d.gtld-servers.net, h.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net... | - |
| knotsystems.com | ns-586.awsdns-09.net, ns-443.awsdns-55.com, ns-1059.awsdns-04.org, ns-2043.awsdns-63.co.uk | 1 record |
✅ Authoritative Response
Server:205.251.194.74
NS records: ns-586.awsdns-09.net, ns-443.awsdns-55.com, ns-1059.awsdns-04.org, ns-2043.awsdns-63.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for knotsystems.com (unsigned zone)
⏱️ Timing
Total: 280ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 52.4.221.138 |
| NS | 4 | ns-1059.awsdns-04.org, ns-2043.awsdns-63.co.uk... |
| MX | 1 | smtp.google.com (pri: 1) |
| SOA | 1 | ns-443.awsdns-55.com awsdns-hostmaster.a |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (ns-443.awsdns-55.com)
Analysis
IP Addresses
knotsystems.com points to an IP address: 52.4.221.138.
Other host names, for instance ec2-52-4-221-138.compute-1.amazonaws.com and capehappenings.com, share IP numbers with knotsystems.com.
Name Servers
knotsystems.com delegates to four name servers: ns-443.awsdns-55.com, ns-586.awsdns-09.net, ns-1059.awsdns-04.org and ns-2043.awsdns-63.co.uk.
knotsystems.com at least partially shares name servers with other domains, for instance d2bqfg1o8jltul.cloudfront.net, noest.dz, a.pdops.com, accuweighgroup.com.au and klarnabank.co.
These name servers are commonly used with the following: ns-568.awsdns-07.net, ns-301.awsdns-37.com, ns-1883.awsdns-43.co.uk and ns-1782.awsdns-30.co.uk.
Host names with two IP numbers: ns-443.awsdns-55.com points to 2600:9000:5301:bb00::1 and 205.251.193.187; ns-586.awsdns-09.net points to 2600:9000:5302:4a00::1 and 205.251.194.74; ns-1059.awsdns-04.org points to 2600:9000:5304:2300::1 and 205.251.196.35; ns-2043.awsdns-63.co.uk points to 2600:9000:5307:fb00::1 and 205.251.199.251.
Mail Servers
knotsystems.com is handled by a single mail server, smtp.google.com.
knotsystems.com uses the same mail server setup as other domains, for instance invionics.com, empyreoffroad.com, loqui.com.gt, andreashahn.de and alloc.ca.
knotsystems.com shares at least partially some mail servers with other domains, for instance zukunft-zum-anfassen.com, ataiamedical.com, teamopsfactory.com, bisjaipur.com and miavio.com.
Hostname smtp.google.com points to nine IP numbers: 2607:f8b0:4023:c03::1a, 2607:f8b0:4023:c03::1b, 2607:f8b0:4023:c0d::1a, 2607:f8b0:4023:c0d::1b, 74.125.137.26, 74.125.137.27, 142.250.101.26, 142.251.2.26 and 142.251.2.27.