backoftheenvelope.com - robtex.com

backoftheenvelope.com

DNSSEC⚠️ Not signed
NScuritiba.ns.porkbun.com ⭐
A2400:cb00:2049:1::adf5:3a25🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
A173.245.58.37🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSfortaleza.ns.porkbun.com
A2400:cb00:2049:1::a29f:88c🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
A162.159.8.140Cloudflare162.159.8.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSmaceio.ns.porkbun.com
A2400:cb00:2049:1::a29f:bb4🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
A162.159.11.180Cloudflare162.159.11.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSsalvador.ns.porkbun.com
A2400:cb00:2049:1::a29f:a96🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
A162.159.10.150Cloudflare162.159.10.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
MXfwd1.porkbun.com ⭐
A44.226.226.6🇺🇸 Amazon44.224.0.0/11 EC2 PDX prefix
PTRfwd1.porkbun.com
MXfwd2.porkbun.com(20)
A52.10.201.111🇺🇸 Amazon52.10.0.0/15 EC2 PDX Prefix
PTRfwd2.porkbun.com
TXTv=spf1 include:_spf.porkbun.com ~all
SOAcuritiba.ns.porkbun.comdns@cloudflare.com serial=2401611576

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1778446961
WOT: UNKNOWN (68/100)

Same first word

backoftheenvelope.com

DNS History

16 records (6 active, 10 former)

20162017201820192020202120222023202420252026NScuritiba.ns.porkbun.comfortaleza.ns.porkbun.commaceio.ns.porkbun.comsalvador.ns.porkbun.comdns1.name-services.comdns2.name-services.comdns3.name-services.comdns4.name-services.comdns5.name-services.comMXfwd1.porkbun.comfwd2.porkbun.comeforwardct.name-services.comeforwardct2.name-services.comeforwardct3.name-services.commx.backoftheenvelope.com.cust.a.hostedemail.comA69.64.156.79
●NScuritiba.ns.porkbun.com2026-05-01 → 2026-05-10 · 3 obs
○ 2026-03-27 14:26:58
● 2026-05-01 20:47:22
● 2026-05-10 21:12:42
○NSdns1.name-services.com2015-07-21 → 2026-03-27 · 4 obs
● 2015-07-21 14:54:18
● 2026-03-27 14:26:58
○ 2026-05-01 20:47:22
○ 2026-05-10 21:12:42
○NSdns2.name-services.com2015-07-21 → 2026-03-27 · 4 obs
● 2015-07-21 14:54:18
● 2026-03-27 14:26:58
○ 2026-05-01 20:47:22
○ 2026-05-10 21:12:42
○NSdns3.name-services.com2015-07-21 → 2026-03-27 · 4 obs
● 2015-07-21 14:54:18
● 2026-03-27 14:26:58
○ 2026-05-01 20:47:22
○ 2026-05-10 21:12:42
○NSdns4.name-services.com2015-07-21 → 2026-03-27 · 4 obs
● 2015-07-21 14:54:18
● 2026-03-27 14:26:58
○ 2026-05-01 20:47:22
○ 2026-05-10 21:12:42
○NSdns5.name-services.com2015-07-21 → 2026-03-27 · 4 obs
● 2015-07-21 14:54:18
● 2026-03-27 14:26:58
○ 2026-05-01 20:47:22
○ 2026-05-10 21:12:42
●NSfortaleza.ns.porkbun.com2026-05-01 → 2026-05-10 · 3 obs
○ 2026-03-27 14:26:58
● 2026-05-01 20:47:22
● 2026-05-10 21:12:42
●NSmaceio.ns.porkbun.com2026-05-01 → 2026-05-10 · 3 obs
○ 2026-03-27 14:26:58
● 2026-05-01 20:47:22
● 2026-05-10 21:12:42
●NSsalvador.ns.porkbun.com2026-05-01 → 2026-05-10 · 3 obs
○ 2026-03-27 14:26:58
● 2026-05-01 20:47:22
● 2026-05-10 21:12:42
○MXeforwardct.name-services.com2015-07-21 → 2016-12-04 · 4 obs
● 2015-07-21 14:54:18
● 2016-12-04 05:02:46
○ 2018-01-24 09:08:18
○ 2026-05-10 21:12:42
○MXeforwardct2.name-services.com2015-07-21 → 2016-12-04 · 4 obs
● 2015-07-21 14:54:18
● 2016-12-04 05:02:46
○ 2018-01-24 09:08:18
○ 2026-05-10 21:12:42
○MXeforwardct3.name-services.com2015-07-21 → 2016-12-04 · 4 obs
● 2015-07-21 14:54:18
● 2016-12-04 05:02:46
○ 2018-01-24 09:08:18
○ 2026-05-10 21:12:42
●MXfwd1.porkbun.com2026-05-01 → 2026-05-10 · 3 obs
○ 2026-03-27 14:26:58
● 2026-05-01 20:47:22
● 2026-05-10 21:12:42
●MXfwd2.porkbun.com2026-05-01 → 2026-05-10 · 3 obs
○ 2026-03-27 14:26:58
● 2026-05-01 20:47:22
● 2026-05-10 21:12:42
○MXmx.backoftheenvelope.com.cust.a.hostedemail.com2018-01-24 → 2026-03-27 · 5 obs
○ 2016-12-04 05:02:46
● 2018-01-24 09:08:18
● 2026-03-27 14:26:58
○ 2026-05-01 20:47:22
○ 2026-05-10 21:12:42
○A69.64.156.792015-07-21 → 2026-03-27 · 4 obs
● 2015-07-21 14:54:18
● 2026-03-27 14:26:58
○ 2026-05-01 20:47:22
○ 2026-05-10 21:12:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comh.gtld-servers.net, g.gtld-servers.net, c.gtld-servers.net, k.gtld-servers.net...-
backoftheenvelope.commaceio.ns.porkbun.com, salvador.ns.porkbun.com, fortaleza.ns.porkbun.com, curitiba.ns.porkbun.com8 records

✅ Authoritative Response

Server:173.245.58.37

NS records: maceio.ns.porkbun.com, salvador.ns.porkbun.com, fortaleza.ns.porkbun.com, curitiba.ns.porkbun.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for backoftheenvelope.com (unsigned zone)

⏱️ Timing

Total: 163ms | Queries: -

📄 Records

TypeCountSample Data
NS4curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com...
MX2fwd1.porkbun.com (pri: 10), fwd2.porkbun.com (pri: 20)
TXT1v=spf1 include:_spf.porkbun.com ~all
SOA1curitiba.ns.porkbun.com dns.cloudflare.c

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (maceio.ns.porkbun.com, maceio.ns.porkbun.com, salvador.ns.porkbun.com...)

Analysis

Name Servers

backoftheenvelope.com is delegated to four name servers: curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com and salvador.ns.porkbun.com.

backoftheenvelope.com at least partially shares name servers with other domains, for example hundertfeuer.com, lunarcipher.online, eastcobbsnobs.net, onlineeyeball.com and weblynx.info.

Host names with two IP numbers:

curitiba.ns.porkbun.com points to: 2400:cb00:2049:1::adf5:3a25 and 173.245.58.37

fortaleza.ns.porkbun.com points to: 2400:cb00:2049:1::a29f:88c and 162.159.8.140

maceio.ns.porkbun.com points to: 2400:cb00:2049:1::a29f:bb4 and 162.159.11.180

salvador.ns.porkbun.com points to: 2400:cb00:2049:1::a29f:a96 and 162.159.10.150

Mail Servers

Two mail servers handle backoftheenvelope.com: fwd1.porkbun.com and fwd2.porkbun.com.

backoftheenvelope.com shares the same mail server setup as other domains, including goldagerecht.com, mazz.me, exclusivedublin.com, exoticcarsbestoffer.com and gracecov.church.

backoftheenvelope.com shares at least some mail servers with other domains, for example olzvoi.dev and fringepolaris.com.

Host names with one IP number:

fwd1.porkbun.com points to 44.226.226.6; fwd2.porkbun.com points to 52.10.201.111.