usefuldoc.info - robtex.com
usefuldoc.info
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3030::6815:2a26🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3034::ac43:9c15🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.42.38Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.156.21🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | karl.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3bbe🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | karl.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1be🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | karl.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21be🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | karl.ns.cloudflare.com | ||||||
| A | 108.162.193.190🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | karl.ns.cloudflare.com | ||||||
| A | 172.64.33.190🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | karl.ns.cloudflare.com | ||||||
| A | 173.245.59.190🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | karl.ns.cloudflare.com | ||||||
| NS | sandy.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3adb🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sandy.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0db🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | sandy.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20db🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | sandy.ns.cloudflare.com | ||||||
| A | 108.162.192.219🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sandy.ns.cloudflare.com | ||||||
| A | 172.64.32.219🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sandy.ns.cloudflare.com | ||||||
| A | 173.245.58.219🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sandy.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.42.38, 172.67.156.21 | ||||||
| IPv6 | 2606:4700:3030::6815:2a26, 2606:4700:3034::ac43:9c15 | ||||||
| SOA | karl.ns.cloudflare.comdns@cloudflare.com serial=2400276491 | ||||||
info
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.info.afilias-nst.info ⭐ | ||||||
| NS | a2.info.afilias-nst.info | ||||||
| NS | b0.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| NS | b2.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| NS | c0.info.afilias-nst.info | ||||||
| NS | d0.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| SOA | a0.info.afilias-nst.infohostmaster@donuts.email serial=1774809779 | ||||||
Subdomains
mail-bunrei.usefuldoc.info |
Same first word
usefuldoc.info |
usefuldoc.com |
Similar names
cloudfuse.com |
fusecloud.co.uk |
fusecloud.io |
fusecloud.net |
cloudfuse.io |
duelfocus.com |
uclfoedus.it |
cloudfuse.dev |
cloudfuse.net |
DNS History
11 records (6 active, 5 former)
●NSkarl.ns.cloudflare.com2026-03-19 → 2026-03-29 · 3 obs
● 2026-03-19 17:28:20
● 2026-03-29 19:02:16
●NSsandy.ns.cloudflare.com2026-03-19 → 2026-03-29 · 3 obs
● 2026-03-19 17:28:20
● 2026-03-29 19:02:16
○NSuns01.lolipop.jp2015-07-02 → 2016-12-30 · 4 obs
● 2016-12-30 16:14:52
○ 2026-03-19 17:28:20
○ 2026-03-29 19:02:16
○NSuns02.lolipop.jp2015-07-02 → 2016-12-30 · 4 obs
● 2016-12-30 16:14:52
○ 2026-03-19 17:28:20
○ 2026-03-29 19:02:16
○MXmx01.lolipop.jp2015-07-02 → 2016-12-30 · 4 obs
● 2016-12-30 16:14:52
○ 2026-03-19 17:28:20
○ 2026-03-29 19:02:16
●A104.21.42.382026-03-19 → 2026-03-29 · 3 obs
● 2026-03-19 17:28:20
● 2026-03-29 19:02:16
○A157.7.107.1422016-12-30 → 2016-12-30 · 4 obs
● 2016-12-30 16:14:52
○ 2026-03-19 17:28:20
○ 2026-03-29 19:02:16
●A172.67.156.212026-03-19 → 2026-03-29 · 3 obs
● 2026-03-19 17:28:20
● 2026-03-29 19:02:16
○A210.172.144.242015-07-02 → 2016-05-01 · 4 obs
● 2016-05-01 14:50:46
○ 2016-12-30 16:14:52
○ 2026-03-29 19:02:16
●A2606:4700:3030::6815:2a262026-03-19 → 2026-03-29 · 3 obs
● 2026-03-19 17:28:20
● 2026-03-29 19:02:16
●A2606:4700:3034::ac43:9c152026-03-19 → 2026-03-29 · 3 obs
● 2026-03-19 17:28:20
● 2026-03-29 19:02:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| info | a0.info.afilias-nst.info, a2.info.afilias-nst.info, c0.info.afilias-nst.info | - |
| usefuldoc.info | karl.ns.cloudflare.com, sandy.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.33.190
NS records: karl.ns.cloudflare.com, sandy.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for usefuldoc.info (unsigned zone)
⏱️ Timing
Total: 469ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.156.21, 104.21.42.38 |
| AAAA | 2 | 2606:4700:3034::ac43:9c15, 2606:4700:3030::6815:2a26 |
| NS | 2 | karl.ns.cloudflare.com, sandy.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | karl.ns.cloudflare.com dns.cloudflare.co |
Analysis
Hierarchy
mail-bunrei.usefuldoc.info has usefuldoc.info as its parent.
IP Addresses
usefuldoc.info maps to four IP numbers: 2606:4700:3030::6815:2a26, 2606:4700:3034::ac43:9c15, 104.21.42.38 and 172.67.156.21.
Other host names, for instance fs99.ru, articlus.com, farenilthuvo.com, ayilarock.com and www.robin-d.fr share IP numbers with usefuldoc.info.
Name Servers
Two name servers karl.ns.cloudflare.com and sandy.ns.cloudflare.com are delegated to usefuldoc.info.
usefuldoc.info uses the same name server configuration as other domains, such as ocstylishsavings.com, irvineofficecustomer.com, shinjuku-memo.info, blinde.info and turtlerockcanyon.com.
usefuldoc.info at least partially shares name servers with other domains such as mjnexpress.ca, cairnsandwoodward.co.nz, gapwiseconsulting.com, pp2cskndwsnej22.pages.dev and lprint.com.
These name servers are commonly used alongside jerry.ns.cloudflare.com, april.ns.cloudflare.com and tori.ns.cloudflare.com.
Host names with six IP numbers: Host name karl.ns.cloudflare.com points to 2606:4700:58::adf5:3bbe, 2803:f800:50::6ca2:c1be, 2a06:98c1:50::ac40:21be, 108.162.193.190, 172.64.33.190 and 173.245.59.190; host name sandy.ns.cloudflare.com points to 2606:4700:50::adf5:3adb, 2803:f800:50::6ca2:c0db, 2a06:98c1:50::ac40:20db, 108.162.192.219, 172.64.32.219 and 173.245.58.219.