`lecturesbureau.com`

DNSSEC	⚠️ Not signed
A	136.243.233.178^{🇩🇪 Hetzner136.243.0.0/16 HETZNER-RZ-BLK-ERX3}
		PTR	`forwto.ipdns.gr`
NS	`ns1.server40.net` ⭐
		A	2001:41d0:404:200::697c^{🇫🇷 OVH2001:41d0::/32 IPv6}
			PTR	`ns1.server40.net`
		A	51.210.242.97^{🇫🇷 OVH51.210.0.0/16}
			PTR	`ns1.server40.net`
NS	`ns2.server40.net`
		A	2a01:4f8:201:3482::177^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
		A	136.243.233.177^{🇩🇪 Hetzner136.243.0.0/16 HETZNER-RZ-BLK-ERX3}
			PTR	`ns2.server40.net`
MX	`mail.lecturesbureau.com` ⭐
		A	136.243.233.178^{🇩🇪 Hetzner136.243.0.0/16 HETZNER-RZ-BLK-ERX3}
			PTR	`forwto.ipdns.gr`
TXT	`v=spf1 a mx ip4:136.243.233.178 ?all`
SOA	`ns1.server40.net`hostmaster@lecturesbureau.com 2016-06-27 #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=1774686097

Subdomains

mail.lecturesbureau.com

Same first word

lecturesbureau.com

lecturesbureau.gr

DNS History

5 records (4 active, 1 former)

●NSns1.server40.net2016-12-18 → 2026-03-28 · 2 obs

● 2016-12-18 22:47:54
● 2026-03-28 08:30:56

●NSns2.server40.net2016-12-18 → 2026-03-28 · 2 obs

● 2016-12-18 22:47:54
● 2026-03-28 08:30:56

●MXmail.lecturesbureau.com2016-12-18 → 2026-03-28 · 2 obs

● 2016-12-18 22:47:54
● 2026-03-28 08:30:56

●A136.243.233.1782026-02-19 → 2026-03-28 · 3 obs

○ 2017-10-01 00:12:00
● 2026-02-19 18:35:06
● 2026-03-28 08:30:56

○A136.243.234.1962016-12-18 → 2017-10-01 · 4 obs

● 2016-12-18 22:47:54
● 2017-10-01 00:12:00
○ 2026-02-19 18:35:06
○ 2026-03-28 08:30:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net...	-
lecturesbureau.com	ns2.server40.net, ns1.server40.net	-

✅ Authoritative Response

Server:51.210.242.97

NS records: ns2.server40.net, ns1.server40.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for lecturesbureau.com (unsigned zone)

⏱️ Timing

Total: 564ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`136.243.233.178`
NS	2	`ns1.server40.net, ns2.server40.net`
MX	1	`mail.lecturesbureau.com (pri: 10)`
TXT	1	`v=spf1 a mx ip4:136.243.233.178 ?all`
SOA	1	`ns1.server40.net hostmaster.lecturesbure`

Analysis

Hierarchy

lecturesbureau.com is a parent of mail.lecturesbureau.com.

IP Addresses

lecturesbureau.com points to a single IP number: 136.243.233.178.

Other host names, for instance durum.gr, sofexchange.com, greeksalads.gr, mat-security.gr and chinacopies.com share IP numbers with lecturesbureau.com.

Name Servers

Delegation for lecturesbureau.com rests with two name servers, ns1.server40.net and ns2.server40.net.

lecturesbureau.com shares the same name server setup as other domains, including newlifechurch.gr, acidbet.gr, alecos.gr, trade(0x6675636b).com and lowergenitaltract.org.

lecturesbureau.com partially shares name servers with other domains, for instance nutrilamp.gr, athenshealthrun.gr, greeceup.gr and 505.gr.

Host names with two IP numbers: ns1.server40.net points to 2001:41d0:404:200::697c and 51.210.242.97; ns2.server40.net points to 2a01:4f8:201:3482::177 and 136.243.233.177.

Mail Servers

lecturesbureau.com is handled by a single mail server, mail.lecturesbureau.com.

mail.lecturesbureau.com points to a single IP: 136.243.233.178.

lecturesbureau.com - robtex.com