mx.kroccenterchicago.com - robtex.com
mx.kroccenterchicago.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3034::6815:10c9🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3037::ac43:d7e6🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.16.201Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.215.230🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.16.201, 172.67.215.230 | ||||||
| IPv6 hints | 2606:4700:3034::6815:10c9, 2606:4700:3037::ac43:d7e6 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=186, name=cloudflare-ech.com | ||||||
kroccenterchicago.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 141.193.213.30🇺🇸 CLOUDFLARESPECTRUM141.193.213.0/24 WPEngine, Inc. 504 Lavaca Street, 1000, Austin, TX 78701, US | ||||||
| A | 141.193.213.31🇺🇸 CLOUDFLARESPECTRUM141.193.213.0/24 WPEngine, Inc. 504 Lavaca Street, 1000, Austin, TX 78701, US | ||||||
| NS | jack.ns.cloudflare.com ⭐ | ||||||
| NS | tia.ns.cloudflare.com | ||||||
| MX | _dc-mx.aa4f52530604.kroccenterchicago.com ⭐ | ||||||
| TXT | facebook-domain-verification=5gf8gop7w2kbdmvyt4ui6pmuchwwn3 | ||||||
| SOA | jack.ns.cloudflare.comdns@cloudflare.com serial=2399648012 | ||||||
Previously MX for
Same first word
Similar names
DNS History
6 records (4 active, 2 former)
●A104.21.16.2012026-03-18 → 2026-04-13 · 3 obs
○ 2016-06-28 23:48:26
● 2026-03-18 05:36:28
● 2026-04-13 19:06:28
● 2026-03-18 05:36:28
● 2026-04-13 19:06:28
●A172.67.215.2302026-03-18 → 2026-04-13 · 3 obs
○ 2016-06-28 23:48:26
● 2026-03-18 05:36:28
● 2026-04-13 19:06:28
● 2026-03-18 05:36:28
● 2026-04-13 19:06:28
●A2606:4700:3034::6815:10c92026-03-18 → 2026-04-13 · 3 obs
○ 2016-06-28 23:48:26
● 2026-03-18 05:36:28
● 2026-04-13 19:06:28
● 2026-03-18 05:36:28
● 2026-04-13 19:06:28
●A2606:4700:3037::ac43:d7e62026-03-18 → 2026-04-13 · 3 obs
○ 2016-06-28 23:48:26
● 2026-03-18 05:36:28
● 2026-04-13 19:06:28
● 2026-03-18 05:36:28
● 2026-04-13 19:06:28
○A66.96.140.902015-06-22 → 2016-06-28 · 4 obs
● 2015-06-22 05:48:20
● 2016-06-28 23:48:26
○ 2026-03-18 05:36:28
○ 2026-04-13 19:06:28
● 2016-06-28 23:48:26
○ 2026-03-18 05:36:28
○ 2026-04-13 19:06:28
○A66.96.140.912015-06-22 → 2016-06-28 · 4 obs
● 2015-06-22 05:48:20
● 2016-06-28 23:48:26
○ 2026-03-18 05:36:28
○ 2026-04-13 19:06:28
● 2016-06-28 23:48:26
○ 2026-03-18 05:36:28
○ 2026-04-13 19:06:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, i.gtld-servers.net, k.gtld-servers.net, d.gtld-servers.net... | - |
| kroccenterchicago.com | jack.ns.cloudflare.com, tia.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.193.121
NS records: jack.ns.cloudflare.com, tia.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kroccenterchicago.com (unsigned zone)
⏱️ Timing
Total: 118ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.215.230, 104.21.16.201 |
| AAAA | 2 | 2606:4700:3034::6815:10c9, 2606:4700:3037::ac43:d7e6 |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (jack.ns.cloudflare.com, jack.ns.cloudflare.com, jack.ns.cloudflare.com...)
Analysis
IP Addresses
Four IP numbers are pointed to by mx.kroccenterchicago.com: 2606:4700:3034::6815:10c9, 2606:4700:3037::ac43:d7e6, 104.21.16.201 and 172.67.215.230.
other host names including f732sh.74g21.qikrrazz.com, silverduneform.info, novusshinequest.com, www.adsupplyads.net and 2l8d5vjb91.3k30o1sci8.qikrrazz.com share IP numbers with mx.kroccenterchicago.com.