jbt.io - robtex.com

jbt.io

DNSSEC⚠️ Not signed
A2606:50c0:8000::153🇺🇸 Fastly2606:50c0:8000::/48 88 Colin P Kelly Jr Street San Francisco CA 94107 United States
A2606:50c0:8001::153🇺🇸 Fastly2606:50c0:8001::/48 + 88 Colin P Kelly Jr Street San Francisco CA 94107 United States
A2606:50c0:8002::153🇺🇸 Fastly2606:50c0:8002::/48 + 88 Colin P Kelly Jr Street San Francisco CA 94107 United States
A2606:50c0:8003::153🇺🇸 Fastly2606:50c0:8003::/48 + 88 Colin P Kelly Jr Street San Francisco CA 94107 United States
A185.199.108.153🇺🇸 Fastly185.199.108.0/24 GitHub - 185.199.108.0/24
A185.199.109.153🇺🇸 Fastly185.199.109.0/24 GitHub - 185.199.109.0/24
A185.199.110.153🇺🇸 Fastly185.199.110.0/24 GitHub - 185.199.110.0/24
A185.199.111.153🇺🇸 Fastly185.199.111.0/24 GitHub - 185.199.111.0/24
NSns-391.awsdns-48.com ⭐
A2600:9000:5301:8700::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront
PTRns-391.awsdns-48.com
A205.251.193.135🇺🇸 Amazon205.251.193.0/24 prefix
PTRns-391.awsdns-48.com
NSns-1320.awsdns-37.org
A2600:9000:5305:2800::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront
PTRns-1320.awsdns-37.org
A205.251.197.40🇺🇸 Amazon205.251.197.0/24 prefix
PTRns-1320.awsdns-37.org
NSns-1589.awsdns-06.co.uk
A2600:9000:5306:3500::1🇺🇸 Amazon2600:9000:5306::/48 - CloudFront
PTRns-1589.awsdns-06.co.uk
A205.251.198.53🇺🇸 Amazon205.251.198.0/24 prefix
PTRns-1589.awsdns-06.co.uk
NSns-745.awsdns-29.net
A2600:9000:5302:e900::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront
PTRns-745.awsdns-29.net
A205.251.194.233🇺🇸 Amazon205.251.194.0/24 prefix
PTRns-745.awsdns-29.net
MXmx1.improvmx.com ⭐
A2a05:d012:412:e201:88aa:e7b9:7a43:12d7🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS
A2a05:d012:412:e202:f36:2c1f:1a49:d38a🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS
A2a05:d012:412:e203:373a:f51a:4a85:1d25🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS
A13.37.195.136🇫🇷 Amazon13.36.0.0/14 EC2 CDG Prefix
PTRec2-13-37-195-136.eu-west-3.compute.amazonaws.com
A15.236.236.160🇫🇷 Amazon15.236.0.0/15 EC2 CDG prefix
PTRec2-15-236-236-160.eu-west-3.compute.amazonaws.com
A35.181.18.45🇫🇷 Amazon35.181.0.0/16 EC2 CDG prefix
PTRec2-35-181-18-45.eu-west-3.compute.amazonaws.com
MXmx2.improvmx.com(20)
A2a05:d012:412:e201:1f6e:f6e4:8fd7:4678🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS
A2a05:d012:412:e202:e81e:cc44:3b53:8a3d🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS
A2a05:d012:412:e203:7e33:3d9c:28d7:ee20🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS
A13.36.107.63🇫🇷 Amazon13.36.0.0/14 EC2 CDG Prefix
PTRec2-13-36-107-63.eu-west-3.compute.amazonaws.com
A13.36.222.39🇫🇷 Amazon13.36.0.0/14 EC2 CDG Prefix
PTRec2-13-36-222-39.eu-west-3.compute.amazonaws.com
A15.236.61.92🇫🇷 Amazon15.236.0.0/15 EC2 CDG prefix
PTRec2-15-236-61-92.eu-west-3.compute.amazonaws.com
TXTv=spf1 include:spf.improvmx.com ~all
SOAns-391.awsdns-48.comawsdns-hostmaster@amazon.com serial=1

io

DNSSEC🔒 Signed (DS record present)
NSa0.nic.io ⭐
NSa2.nic.io
NSb0.nic.io
NSc0.nic.io
SOAa0.nic.iohostmaster@donuts.email serial=1774475787

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DNS History

14 records (14 active, 0 former)

NSns-1320.awsdns-37.orgns-1589.awsdns-06.co.ukns-391.awsdns-48.comns-745.awsdns-29.netMXmx1.improvmx.commx2.improvmx.comA185.199.108.153185.199.109.153185.199.110.153185.199.111.1532606:50c0:8000::1532606:50c0:8001::1532606:50c0:8002::1532606:50c0:8003::153
●NSns-1320.awsdns-37.org2026-02-25 → 2026-03-25 · 2 obs
● 2026-02-25 11:30:02
● 2026-03-25 22:10:22
●NSns-1589.awsdns-06.co.uk2026-02-25 → 2026-03-25 · 2 obs
● 2026-02-25 11:30:02
● 2026-03-25 22:10:22
●NSns-391.awsdns-48.com2026-02-25 → 2026-03-25 · 2 obs
● 2026-02-25 11:30:02
● 2026-03-25 22:10:22
●NSns-745.awsdns-29.net2026-02-25 → 2026-03-25 · 2 obs
● 2026-02-25 11:30:02
● 2026-03-25 22:10:22
●MXmx1.improvmx.com2026-02-25 → 2026-03-25 · 2 obs
● 2026-02-25 11:30:02
● 2026-03-25 22:10:22
●MXmx2.improvmx.com2026-02-25 → 2026-03-25 · 2 obs
● 2026-02-25 11:30:02
● 2026-03-25 22:10:22
●A185.199.108.1532026-02-25 → 2026-03-25 · 2 obs
● 2026-02-25 11:30:02
● 2026-03-25 22:10:22
●A185.199.109.1532026-02-25 → 2026-03-25 · 2 obs
● 2026-02-25 11:30:02
● 2026-03-25 22:10:22
●A185.199.110.1532026-02-25 → 2026-03-25 · 2 obs
● 2026-02-25 11:30:02
● 2026-03-25 22:10:22
●A185.199.111.1532026-02-25 → 2026-03-25 · 2 obs
● 2026-02-25 11:30:02
● 2026-03-25 22:10:22
●A2606:50c0:8000::1532026-02-25 → 2026-03-25 · 2 obs
● 2026-02-25 11:30:02
● 2026-03-25 22:10:22
●A2606:50c0:8001::1532026-02-25 → 2026-03-25 · 2 obs
● 2026-02-25 11:30:02
● 2026-03-25 22:10:22
●A2606:50c0:8002::1532026-02-25 → 2026-03-25 · 2 obs
● 2026-02-25 11:30:02
● 2026-03-25 22:10:22
●A2606:50c0:8003::1532026-02-25 → 2026-03-25 · 2 obs
● 2026-02-25 11:30:02
● 2026-03-25 22:10:22

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
ioa0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io-
jbt.ions-391.awsdns-48.com, ns-745.awsdns-29.net, ns-1320.awsdns-37.org, ns-1589.awsdns-06.co.uk-

✅ Authoritative Response

Server:205.251.197.40

NS records: ns-391.awsdns-48.com, ns-745.awsdns-29.net, ns-1320.awsdns-37.org, ns-1589.awsdns-06.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jbt.io (unsigned zone)

⏱️ Timing

Total: 475ms | Queries: -

📄 Records

TypeCountSample Data
A4185.199.111.153, 185.199.108.153...
AAAA42606:50c0:8003::153, 2606:50c0:8001::153...
NS4ns-1320.awsdns-37.org, ns-1589.awsdns-06.co.uk...
MX2mx1.improvmx.com (pri: 10), mx2.improvmx.com (pri: 20)
TXT1v=spf1 include:spf.improvmx.com ~all
SOA1ns-391.awsdns-48.com awsdns-hostmaster.a

Analysis

IP Addresses

Eight IP numbers are targeted by jbt.io: 2606:50c0:8000::153, 2606:50c0:8001::153, 2606:50c0:8002::153, 2606:50c0:8003::153, 185.199.108.153, 185.199.109.153, 185.199.110.153 and 185.199.111.153.

other host names including karur.co.in, fossify.org, christofff.de, noxet.se and salticus.net share IP numbers with jbt.io.

Name Servers

jbt.io is delegated to four name servers: ns-391.awsdns-48.com, ns-745.awsdns-29.net, ns-1320.awsdns-37.org and ns-1589.awsdns-06.co.uk.

jbt.io at least partially shares name servers with other domains, for instance associa-mansion.jp, theshoppesatgateway.com, mind-ware.it, mozartleiloeiro.com.br and d27qrngdleio2b.cloudfront.net.

Host names with two IP numbers:

ns-391.awsdns-48.com points to 2600:9000:5301:8700::1 and 205.251.193.135; ns-745.awsdns-29.net points to 2600:9000:5302:e900::1 and 205.251.194.233; ns-1320.awsdns-37.org points to 2600:9000:5305:2800::1 and 205.251.197.40; ns-1589.awsdns-06.co.uk points to 2600:9000:5306:3500::1 and 205.251.198.53.

Mail Servers

Two mail servers handle jbt.io: mx1.improvmx.com and mx2.improvmx.com.

jbt.io shares the same mail server setup as other domains, for instance chronicsoul.com, wilsonak.com, sophware.com, gostev.me and businessgrowingsolution.com.

jbt.io shares at least some mail servers with other domains, including tanishq.me, yankee-ingenuity.com, promo.catcasino.com and aramumuru.com.

Host names with six IP numbers:

Host name mx1.improvmx.com points to: 2a05:d012:412:e201:88aa:e7b9:7a43:12d7, 2a05:d012:412:e202:f36:2c1f:1a49:d38a, 2a05:d012:412:e203:373a:f51a:4a85:1d25, 13.37.195.136, 15.236.236.160 and 35.181.18.45.

Host name mx2.improvmx.com points to: 2a05:d012:412:e201:1f6e:f6e4:8fd7:4678, 2a05:d012:412:e202:e81e:cc44:3b53:8a3d, 2a05:d012:412:e203:7e33:3d9c:28d7:ee20, 13.36.107.63, 13.36.222.39 and 15.236.61.92.