`flex4coaching.com`

DNSSEC	⚠️ Not signed
A	2a00:f10:305:0:1c00:c9ff:fe00:527^{🇳🇱 CLDIN-NL2a00:f10::/29}
		PTR	`www60.totaalholding.nl`
A	185.87.187.239^{🇳🇱 CLDIN-NL185.87.184.0/22}
NS	`sandra.neostrada.nl` ⭐
		A	2a05:1500:702:0:1c00:3eff:fe00:35^{🇳🇱 CLDIN-NL2a05:1500::/29}
		A	31.25.98.57^{🇳🇱 CLDIN-NL31.25.96.0/21 PCextreme B.V.}
NS	`christina.neostrada.nl`
		A	2a01:7e01::f03c:91ff:fee9:95bd^{🇩🇪 AKAMAI-LINODE-AP2a01:7e01::/32 Akamai Technologies}
			PTR	`twee.dnssrv.nl`
		A	172.104.143.74^{🇩🇪 AKAMAI-LINODE-AP172.104.128.0/19 Akamai Technologies}
			PTR	`twee.dnssrv.nl`
NS	`lisa.neostrada.nl`
		A	2600:3c03::f03c:91ff:fe0a:b97^{🇺🇸 AKAMAI-LINODE-AP2600:3c03::/32 Akamai Technologies}
			PTR	`drie.dnssrv.nl`
		A	66.228.38.167^{🇺🇸 AKAMAI-LINODE-AP66.228.32.0/20 Akamai Technologies}
			PTR	`drie.dnssrv.nl`
MX	`mail.flex4coaching.com` ⭐
		A	2a00:f10:305:0:1c00:c9ff:fe00:527^{🇳🇱 CLDIN-NL2a00:f10::/29}
			PTR	`www60.totaalholding.nl`
		A	185.87.187.239^{🇳🇱 CLDIN-NL185.87.184.0/22}
			PTR	`www60.totaalholding.nl`
TXT	`v=spf1 a mx include:spf.totaalholding.nl ip4:185.56.145.35 -all`
SOA	`sandra.neostrada.nl`hostmaster@neostrada.nl 2017-05-20 #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.net`nstld@verisign-grs.com serial=1777375557

Subdomains

mail.flex4coaching.com

Same first word

flex4coaching.com

DNS History

7 records (6 active, 1 former)

●NSchristina.neostrada.nl2017-08-10 → 2026-04-28 · 2 obs

● 2017-08-10 04:16:06
● 2026-04-28 11:43:54

●NSlisa.neostrada.nl2017-08-10 → 2026-04-28 · 2 obs

● 2017-08-10 04:16:06
● 2026-04-28 11:43:54

●NSsandra.neostrada.nl2017-08-10 → 2026-04-28 · 2 obs

● 2017-08-10 04:16:06
● 2026-04-28 11:43:54

●MXmail.flex4coaching.com2017-08-10 → 2026-04-28 · 2 obs

● 2017-08-10 04:16:06
● 2026-04-28 11:43:54

○A185.56.145.352017-08-10 → 2017-08-10 · 3 obs

● 2017-08-10 04:16:06
○ 2026-02-16 03:35:46
○ 2026-04-28 11:43:54

●A185.87.187.2392026-02-16 → 2026-04-28 · 3 obs

○ 2017-08-10 04:16:06
● 2026-02-16 03:35:46
● 2026-04-28 11:43:54

●A2a00:f10:305:0:1c00:c9ff:fe00:5272026-02-16 → 2026-04-28 · 3 obs

○ 2017-08-10 04:16:06
● 2026-02-16 03:35:46
● 2026-04-28 11:43:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
flex4coaching.com	sandra.neostrada.nl, lisa.neostrada.nl, christina.neostrada.nl	-

✅ Authoritative Response

Server:172.104.143.74

NS records: sandra.neostrada.nl, lisa.neostrada.nl, christina.neostrada.nl

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for flex4coaching.com (unsigned zone)

⏱️ Timing

Total: 1173ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.87.187.239`
AAAA	1	`2a00:f10:305:0:1c00:c9ff:fe00:527`
NS	3	`christina.neostrada.nl, sandra.neostrada.nl...`
MX	1	`mail.flex4coaching.com (pri: 10)`
TXT	1	`v=spf1 a mx include:spf.totaalholding.nl`
SOA	1	`sandra.neostrada.nl hostmaster.neostrada`

Analysis

Hierarchy

mail.flex4coaching.com is a child of flex4coaching.com.

IP Addresses

flex4coaching.com has two IP numbers: 2a00:f10:305:0:1c00:c9ff:fe00:527 and 185.87.187.239.

Other host names, for instance maytree.info, mail.dereuring.nl, lychnotbite.be, mail.lovedreams.be and mail.a60.nl share IP numbers with flex4coaching.com.

Name Servers

flex4coaching.com is delegated to three name servers: christina.neostrada.nl, lisa.neostrada.nl and sandra.neostrada.nl.

flex4coaching.com at least partially shares name servers with other domains, including tbva.nl, renegoedhart.nl, all-areas.be, innbetween.nl and adamblvck.com.

These name servers are commonly used with drie.dnssrv.nl, een.dnssrv.nl and twee.dnssrv.nl.

Host names with two IP numbers:

christina.neostrada.nl: 2a01:7e01::f03c:91ff:fee9:95bd and 172.104.143.74

lisa.neostrada.nl: 2600:3c03::f03c:91ff:fe0a:b97 and 66.228.38.167

sandra.neostrada.nl: 2a05:1500:702:0:1c00:3eff:fe00:35 and 31.25.98.57

Mail Servers

A single mail server handles flex4coaching.com, mail.flex4coaching.com.

The host name mail.flex4coaching.com resolves to two IP numbers: 2a00:f10:305:0:1c00:c9ff:fe00:527 and 185.87.187.239.

flex4coaching.com - robtex.com