launchcoursenow.com - robtex.com
launchcoursenow.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 77.72.2.73🇬🇧 KRYSTAL77.72.2.0/24 | ||||||
| PTR | ratte-lon.krystal.uk | ||||||
| NS | ns1.krystal.uk ⭐ ⚠️ Not in parent delegation | ||||||
| A | 77.72.0.11🇬🇧 KRYSTAL77.72.0.0/21 Krystal Hosting Ltd | ||||||
| PTR | ns1.krystal.uk | ||||||
| NS | ns1.krystal.co.uk ⚠️ Not in zone NS records | ||||||
| A | 77.72.0.11🇬🇧 KRYSTAL77.72.0.0/21 Krystal Hosting Ltd | ||||||
| PTR | ns1.krystal.uk | ||||||
| NS | ns2.krystal.co.uk ⚠️ Not in zone NS records | ||||||
| A | 139.162.230.184🇬🇧 AKAMAI-LINODE-AP139.162.224.0/19 Akamai Technologies | ||||||
| PTR | ns2.krystal.uk | ||||||
| NS | ns2.krystal.uk ⚠️ Not in parent delegation | ||||||
| A | 139.162.230.184🇬🇧 AKAMAI-LINODE-AP139.162.224.0/19 Akamai Technologies | ||||||
| PTR | ns2.krystal.uk | ||||||
| MX | mx1.krystal.uk ⭐ | ||||||
| A | 185.53.56.44🇬🇧 KRYSTAL185.53.56.0/22 | ||||||
| PTR | mx1.strikemail.co.uk | ||||||
| A | 185.53.56.46🇬🇧 KRYSTAL185.53.56.0/22 | ||||||
| PTR | mx1.strikemail.co.uk | ||||||
| MX | mx2.krystal.uk(20) | ||||||
| A | 185.53.56.45🇬🇧 KRYSTAL185.53.56.0/22 | ||||||
| PTR | mx2.strikemail.co.uk | ||||||
| A | 185.53.56.47🇬🇧 KRYSTAL185.53.56.0/22 | ||||||
| PTR | mx2.strikemail.co.uk | ||||||
| TXT | v=spf1 +a +mx +ip4:77.72.2.73 include:relay.k.io ~all | ||||||
| SOA | ns1.krystal.ukadmin@k-validator-ratte-lon.krystal.uk 2026-01-18 #1 | ||||||
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=1771291435 | ||||||
DNS History
13 records (7 active, 6 former)
●NSns1.krystal.co.uk2026-03-11 → 2026-03-11 · 2 obs
● 2026-03-11 03:29:00
●NSns1.krystal.uk2026-03-11 → 2026-03-11 · 2 obs
● 2026-03-11 03:29:00
○NSns1.us72.siteground.us2018-05-13 → 2018-05-13 · 2 obs
○ 2026-03-11 03:29:00
●NSns2.krystal.co.uk2026-03-11 → 2026-03-11 · 2 obs
● 2026-03-11 03:29:00
●NSns2.krystal.uk2026-03-11 → 2026-03-11 · 2 obs
● 2026-03-11 03:29:00
○NSns2.us72.siteground.us2018-05-13 → 2018-05-13 · 2 obs
○ 2026-03-11 03:29:00
●MXmx1.krystal.uk2026-03-11 → 2026-03-11 · 2 obs
● 2026-03-11 03:29:00
○MXmx10.mailspamprotection.com2018-05-13 → 2018-05-13 · 2 obs
○ 2026-03-11 03:29:00
●MXmx2.krystal.uk2026-03-11 → 2026-03-11 · 2 obs
● 2026-03-11 03:29:00
○MXmx20.mailspamprotection.com2018-05-13 → 2018-05-13 · 2 obs
○ 2026-03-11 03:29:00
○MXmx30.mailspamprotection.com2018-05-13 → 2018-05-13 · 2 obs
○ 2026-03-11 03:29:00
○A37.60.252.1742018-05-13 → 2018-05-13 · 2 obs
○ 2026-03-11 03:29:00
●A77.72.2.732026-03-11 → 2026-03-11 · 2 obs
● 2026-03-11 03:29:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| launchcoursenow.com | ns1.krystal.co.uk, ns2.krystal.co.uk | - |
✅ Authoritative Response
Server: 139.162.230.184
NS records: ns1.krystal.co.uk, ns2.krystal.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for launchcoursenow.com (unsigned zone)
⏱️ Timing
Total: 2382ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 77.72.2.73 |
| NS | 2 | ns1.krystal.uk, ns2.krystal.uk |
| MX | 2 | mx2.krystal.uk (pri: 20), mx1.krystal.uk (pri: 10) |
| TXT | 1 | v=spf1 +a +mx +ip4:77.72.2.73 include:re |
| SOA | 1 | ns1.krystal.uk admin.k-validator-ratte-l |
Analysis
IP Addresses
launchcoursenow.com resolves to one IP number: 77.72.2.73.
other host names including innovation-supplies.co.uk, play.idevgames.co.uk, dog-games-shop.co.uk, letsgoplanting.co.uk and braingymresearch.info share IP numbers with launchcoursenow.com.
Name Servers
launchcoursenow.com is delegated to four name servers: ns1.krystal.uk, ns2.krystal.uk, ns1.krystal.co.uk and ns2.krystal.co.uk.
launchcoursenow.com at least partially shares name servers with other domains, for instance jhtpduncan.com, pect.co.uk, learning-technologist.co.uk, danhume.com and funkymoose.co.uk.
These name servers are commonly used alongside ns1.cloudhosting.co.uk, ns2.cloudhosting.co.uk, ns1.cloudhosting.uk, ns2.cloudhosting.uk, ns1.uksrv.co.uk and ns2.uksrv.co.uk.
Host names with one IP number:
Host name ns1.krystal.uk points to: 77.72.0.11.
Host name ns2.krystal.uk points to: 139.162.230.184.
Host name ns1.krystal.co.uk points to: 77.72.0.11.
Host name ns2.krystal.co.uk points to: 139.162.230.184.
Host names pointing to 77.72.0.11: ns1.krystal.uk and ns1.krystal.co.uk.
Host names pointing to 139.162.230.184: ns2.krystal.uk and ns2.krystal.co.uk.
Mail Servers
Two mail servers handle launchcoursenow.com: mx1.krystal.uk and mx2.krystal.uk.
launchcoursenow.com shares the same mail server setup as other domains, for instance thefrog.org, timeliney.com, kierenmccarthy.com, premiertinting.co.uk and planetgames.eu.
launchcoursenow.com shares mail servers with other domains to some extent, for instance gssn.co.uk.
Host names with two IP numbers:
The host name mx1.krystal.uk points to 185.53.56.44 and 185.53.56.46; the host name mx2.krystal.uk points to 185.53.56.45 and 185.53.56.47.