`old.bigthink.com`

DNSSEC	⚠️ Not signed
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1b::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`wv-in-f27.1e100.net`
		A	142.251.16.27^{🇺🇸 Google142.251.16.0/24}
			PTR	`bl-in-f27.1e100.net`
TXT	`google-site-verification=QMhKNWonEqwrQXtr4OuRZ3VzAey-1vhmJkFoLDvC3OM`

`bigthink.com`

DNSSEC	⚠️ Not signed
A	2606:4700::6812:a43^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700::6812:b43^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.10.67^{Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.11.67^{Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`frank.ns.cloudflare.com` ⭐
NS	`liv.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
MX	`alt1.aspmx.l.google.com`⁽²⁰⁾
MX	`alt2.aspmx.l.google.com`⁽²⁰⁾
MX	`aspmx2.googlemail.com`⁽³⁰⁾
MX	`aspmx3.googlemail.com`⁽³⁰⁾
TXT	`MS=ms59457489`
TXT	`_globalsign-domain-verification=1bIUeFQan6DwxRMFkfSsKamrhvJLH8zU49c1PDyHi5`
TXT	`_globalsign-domain-verification=2wRqY6IrIINLY7B8Qcp-qur9HsiRTO04g4gwsMmFy3`
TXT	`_globalsign-domain-verification=oQMq_G3Amhi22taxA9iFT-dk_zHARxA27Z0jygBZzo`
TXT	`anthropic-domain-verification-3yr2nb=R61RWTRp7eKATMAWS6ysnSgTL`
TXT	`apple-domain-verification=Y0jnqEg4a6CbdYpz`
TXT	`atlassian-domain-verification=Sy2DdmSX6vjBKYnPktlBtM0HVxilSLu427CbTKyytLpHVd9...`
TXT	`brave-ledger-verification=91274b2f4b86d4e567f1bfac3af2939e17f3789e9149f42a54e...`
TXT	`e4bo424u3f58fnv2geanpla4r5`
TXT	`facebook-domain-verification=imnsr6iaawlgvto58dd99ywxgdfkmr`
TXT	`google-site-verification=Ag1fG5O40z3867zln2At8HXynDGkVy-PFYrn4TV43n8`
TXT	`google-site-verification=IQ0Q3-snTXtmIPmqxY4XEk-ucnIk9H_LTPldZQ384-o`
TXT	`google-site-verification=mrT_skiiLc7lMHOIVrlqYIfL_7dqokcf255Bv4E7Dqg`
TXT	`p6wbgj4mp14fnw67x42pd3bjjtk60ppk`
TXT	`v=spf1 a mx include:servers.mcsv.net include:_spf.google.com include:mailgun....`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.18.10.67, 104.18.11.67
		IPv6	2606:4700::6812:a43, 2606:4700::6812:b43
SOA	`frank.ns.cloudflare.com`dns@cloudflare.com serial=2400116606

WOT: SAFE (92/100)
rank #2278 globally
rank #1221 in the tld
WOT: SAFE (92/100)
📈 Tranco rank: #8,305

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DNS History

1 record (1 active, 0 former)

●MXaspmx.l.google.com2026-03-20 → 2026-04-01 · 2 obs

● 2026-03-20 19:00:22
● 2026-04-01 03:29:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, g.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net...	-
bigthink.com	frank.ns.cloudflare.com, liv.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.188

NS records: frank.ns.cloudflare.com, liv.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bigthink.com (unsigned zone)

⏱️ Timing

Total: 249ms | Queries: -

📄 Records

Type	Count	Sample Data
MX	1	`aspmx.l.google.com (pri: 1)`
TXT	1	`google-site-verification=QMhKNWonEqwrQXt`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (frank.ns.cloudflare.com, frank.ns.cloudflare.com, frank.ns.cloudflare.com...)

Analysis

Mail Servers

old.bigthink.com is handled by a single mail server, aspmx.l.google.com.

old.bigthink.com shares the mail server setup with other domains, for example revel-inc.com, bgcco.ph, tqsglobal.org, synthio.wpengine.com and bolissim.com.

old.bigthink.com shares some mail servers with other domains, at least partially; for instance okw.info, digiinfi.com, wickets.tv, ns500821.ns500841.ns500841.ns500794.ns500794.ns500795.ns500821.ns500795.ns500821.ns500821.ns500790.ns500795.lustypartnersfinder.com and realsta.com.

These mail servers are commonly used alongside alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.

aspmx.l.google.com resolves to two IPs: 2607:f8b0:4004:c1b::1b and 142.251.16.27.

old.bigthink.com - robtex.com

old.bigthink.com

bigthink.com