`bcsd.com`

DNSSEC	⚠️ Not signed
A	104.17.71.73^{Cloudflare104.17.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns1.bcsd.com` ⭐
		A	192.174.68.100^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net}
			PTR	`ns1.comteam.at`
			PTR	`ns1.ebit.at`
			PTR	`sec1.rcode0.at`
			PTR	`ns3.arcade.ch`
			PTR	`ns1.dynanet.ch`
			PTR	`maggie.goeast.ch`
			PTR	`ns1.cid.com`
			PTR	`sec1.rcode0.com`
			PTR	`ns2.is-fun.net`
			PTR	`ns1.nic53.net`
			PTR	`sec1.rcode0.net`
			PTR	`sec.rcode0.net`
			PTR	`ns1.vaiadigital.net`
			PTR	`b.itconsult-dns.org`
			PTR	`sec1.rcode0.org`
			PTR	`c.ns.unihost.eu`
NS	`ns2.bcsd.com`
		A	176.97.158.100^{🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net}
			PTR	`ns2.comteam.at`
			PTR	`ns2.ebit.at`
			PTR	`sec2.rcode0.at`
			PTR	`ns3.arcade.ch`
			PTR	`ns2.dynanet.ch`
			PTR	`homer.goeast.ch`
			PTR	`lisa.goeast.com`
			PTR	`sec2.rcode0.com`
			PTR	`ns2.cid.de`
			PTR	`ns2.nic53.de`
			PTR	`sec2.rcode0.net`
			PTR	`sec.rcode0.net`
			PTR	`ns2.vaiadigital.net`
			PTR	`sec2.rcode0.org`
			PTR	`d.ns.unihost.eu`
			PTR	`d.itconsult-dns.co.uk`
MX	`d58451a.ess.barracudanetworks.com` ⭐
		A	209.222.82.252^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
		A	209.222.82.253^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
		A	209.222.82.255^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
MX	`d58451b.ess.barracudanetworks.com`⁽¹¹⁾
		A	209.222.82.252^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
		A	209.222.82.253^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
		A	209.222.82.255^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
TXT	`MS=ms39288573`
TXT	`google-site-verification=HHp9HmVgPIeKoS1GpCJpDyjeGFHu-ZomzEv0nA0LN18`
TXT	`adobe-idp-site-verification=589056b7dc4f2308f840a6ea6ab0969486edb1723d57c5c6d...`
TXT	`ZOOM_verify_HKLpdYqTSIuH71WaMpH2oQ`
TXT	`BPL=6487732`
TXT	`v=spf1 a:spamfilter.bcsd.com ip4:206.227.15.0/24 ip4:206.227.48.0/23 include:...`
TXT	`google-site-verification=1OdmCNHTdnQR6IZ-VteoENOKtyEt1nb1Sl34dW_S-YI`
TXT	`autodesk-domain-verification=GKd8CNlDHf6-ZOokTb-q`
TXT	`apple-domain-verification=ayIS0aS7r04wVbQx`
TXT	`MS=ms48093689`
SOA	`ns1.bcsd.com`dnsmgr@bcsd.com 2026-02-18 #2

`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=1771291435

rank #831172 globally
rank #380289 in the tld

Subdomains

ns2.bcsd.com

www.bcsd.com

xns2.bcsd.com

ns1.bcsd.com

xns1.bcsd.com

spamfilter.bcsd.com

Same first word

bcsd.org.tw

bcsd.fr

bcsd.de

bcsd.k12.il.us

bcsd.net

bcsd.cn

bcsd.com

bcsd.ca

bcsd.us

bcsd.bs

bcsd.co.za

bcsd.k12.ca.us

bcsd.dk

bcsd.org

bcsd.org.ua

bcsd.or.kr

bcsd.in

Similar names

csdb.it

sbdc.cn

cdsb.info

cdbs.com.cn

dscb.org

scbd.com

dbcs.se

sdbc.com.au

dbsc.nl

sdbc.com.cn

sdbc.org.au

bdcs.nl

scbd.co.uk

sdcb.com

bdsc.org

dcbs.ru

dcbs.fr

dcbs.info

csbd.gov.ge

dbcs.ph

bscd.org

dsbc.ru

sbcd.com.sg

cdbs.net

cdsb.biz

sbdc.in

cbsd.nl

dcsb.com

bscd.dk

dbsc.at

bdsc.es

bcds.org.in

dbsc.co.jp

cdsb.com.br

csdb.net

bdsc.de

bdcs.com.au

sbdc.eu

dcbs.net

sbdc.nl

dbcs.info

dcbs.co.nz

dbcs.eu

bdcs.co.uk

dbsc.co

bsdc.cn

scdb.com.cn

cbsd.ca

csdb.be

dscb.net.cn

cdbs.de

dcbs.com.au

dbsc.de

dsbc.org.uk

csdb.ca

cdsb.ch

bsdc.ca

cbsd.de

csbd.ru

dscb.be

dscb.akamai.net

dsbc.net

sbdc.ru

sbdc.or.kr

dbcs.net

sbdc.com.tw

dbsc.kr

dsbc.org

csdb.dk

cbds.org

cbds.nl

bdsc.site

dcsb.co.uk

bscd.de

dcbs.com.tw

dbsc.org

dbcs.org

dbsc.be

csbd.com.cn

sdbc.co.uk

bcds.fr

bsdc.de

cbsd.cn

scbd.com.cn

dbcs.nl

sbdc.co.uk

bsdc.net

cdsb.org

bcds.ru

bsdc.co

bscd.co.uk

csbd.co.uk

scbd.net.id

DNS History

15 records (5 active, 10 former)

○NSbcsd.k12.ca.us2015-07-23 → 2020-11-14 · 24 obs

○ 2009-01-12 21:14:24
● 2015-07-23 19:10:16
● 2015-11-17 04:15:52
○ 2015-11-18 22:50:58
○ 2016-02-15 10:57:28
● 2016-03-05 22:22:26
○ 2016-03-18 14:02:36
○ 2016-04-23 06:55:14
● 2016-05-01 07:21:00
● 2016-05-19 03:14:34
○ 2016-06-02 08:58:26
● 2016-06-12 06:49:24
○ 2016-06-30 23:19:04
● 2016-07-18 01:11:56
● 2016-08-21 20:03:30
○ 2016-09-08 08:26:20
● 2016-10-08 00:40:02
● 2016-11-30 06:29:34
○ 2016-12-08 23:03:00
○ 2017-01-20 07:55:20
● 2017-02-17 09:41:16
● 2020-11-14 23:25:26
○ 2026-02-18 05:30:34
○ 2026-02-28 20:43:46

●NSns1.bcsd.com2009-01-12 → 2026-02-28 · 2 obs

● 2009-01-12 21:14:24
● 2026-02-28 20:43:46

●NSns2.bcsd.com2026-02-18 → 2026-02-28 · 3 obs

○ 2020-11-14 23:25:26
● 2026-02-18 05:30:34
● 2026-02-28 20:43:46

○NSxns1.bcsd.com2019-12-12 → 2020-11-14 · 5 obs

○ 2017-09-20 05:18:46
● 2019-12-12 01:35:42
● 2020-11-14 23:25:26
○ 2026-02-18 05:30:34
○ 2026-02-28 20:43:46

○NSxns2.bcsd.com2009-01-12 → 2017-09-20 · 4 obs

● 2009-01-12 21:14:24
● 2017-09-20 05:18:46
○ 2019-12-12 01:35:42
○ 2026-02-28 20:43:46

●MXd58451a.ess.barracudanetworks.com2015-07-23 → 2026-02-28 · 3 obs

○ 2009-01-12 21:14:24
● 2015-07-23 19:10:16
● 2026-02-28 20:43:46

●MXd58451b.ess.barracudanetworks.com2015-07-23 → 2026-02-28 · 3 obs

○ 2009-01-12 21:14:24
● 2015-07-23 19:10:16
● 2026-02-28 20:43:46

○MXexches01.bcsd.k12.ca.us2009-01-12 → 2009-01-12 · 3 obs

● 2009-01-12 21:14:24
○ 2015-07-23 19:10:16
○ 2026-02-28 20:43:46

●A104.17.71.732026-02-18 → 2026-02-28 · 3 obs

○ 2020-11-14 23:25:26
● 2026-02-18 05:30:34
● 2026-02-28 20:43:46

○A151.101.0.802019-12-12 → 2020-11-14 · 5 obs

○ 2017-09-20 05:18:46
● 2019-12-12 01:35:42
● 2020-11-14 23:25:26
○ 2026-02-18 05:30:34
○ 2026-02-28 20:43:46

○A151.101.128.802019-12-12 → 2020-11-14 · 5 obs

○ 2017-09-20 05:18:46
● 2019-12-12 01:35:42
● 2020-11-14 23:25:26
○ 2026-02-18 05:30:34
○ 2026-02-28 20:43:46

○A151.101.192.802019-12-12 → 2020-11-14 · 5 obs

○ 2017-09-20 05:18:46
● 2019-12-12 01:35:42
● 2020-11-14 23:25:26
○ 2026-02-18 05:30:34
○ 2026-02-28 20:43:46

○A151.101.64.802019-12-12 → 2020-11-14 · 5 obs

○ 2017-09-20 05:18:46
● 2019-12-12 01:35:42
● 2020-11-14 23:25:26
○ 2026-02-18 05:30:34
○ 2026-02-28 20:43:46

○A206.227.0.832015-07-23 → 2017-09-20 · 5 obs

○ 2009-01-12 21:14:24
● 2015-07-23 19:10:16
● 2017-09-20 05:18:46
○ 2019-12-12 01:35:42
○ 2026-02-28 20:43:46

○A206.227.3.112009-01-12 → 2009-01-12 · 3 obs

● 2009-01-12 21:14:24
○ 2015-07-23 19:10:16
○ 2026-02-28 20:43:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, i.gtld-servers.net, g.gtld-servers.net, k.gtld-servers.net...	-
bcsd.com	ns1.bcsd.com, ns2.bcsd.com	2 records

✅ Authoritative Response

Server: 176.97.158.100

NS records: ns1.bcsd.com, ns2.bcsd.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bcsd.com (unsigned zone)

⏱️ Timing

Total: 146ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`104.17.71.73`
NS	2	`ns1.bcsd.com, ns2.bcsd.com`
MX	2	`d58451b.ess.barracudanetworks.com (pri: , d58451a.ess.barracudanetworks.com (pri:`
TXT	10	`MS=ms39288573, google-site-verification=HHp9HmVgPIeKoS1...`
SOA	1	`ns1.bcsd.com dnsmgr.bcsd.com`

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (ns1.bcsd.com, ns2.bcsd.com)

Analysis

Hierarchy

bcsd.com is the parent of ns2.bcsd.com, www.bcsd.com, xns2.bcsd.com, ns1.bcsd.com, xns1.bcsd.com and a few other host names.

IP Addresses

bcsd.com points to IP number 104.17.71.73.

For instance, other host names smjuhsd.org, fcps1.org, acst.net, htsdnj.org and columbiaschools.org share IP numbers with bcsd.com.

Name Servers

bcsd.com is delegated to two name servers: ns1.bcsd.com and ns2.bcsd.com.

Host names with one IP number:

ns1.bcsd.com points to: 192.174.68.100.

ns2.bcsd.com points to: 176.97.158.100.

Mail Servers

Two mail servers d58451a.ess.barracudanetworks.com and d58451b.ess.barracudanetworks.com handle bcsd.com.

Host names with three IP numbers:

d58451a.ess.barracudanetworks.com and d58451b.ess.barracudanetworks.com point to 209.222.82.252, 209.222.82.253 and 209.222.82.255.

Host names that point to 209.222.82.252: d58451a.ess.barracudanetworks.com and d58451b.ess.barracudanetworks.com.

Host names that point to 209.222.82.253: d58451a.ess.barracudanetworks.com and d58451b.ess.barracudanetworks.com.

Host names that point to 209.222.82.255: d58451a.ess.barracudanetworks.com and d58451b.ess.barracudanetworks.com.

bcsd.com - robtex.com

bcsd.com

com

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`bcsd.com`

`com`