opentenders.tech - robtex.com

opentenders.tech

DNSSEC🔒 Signed (DS record present)
A2606:4700:3033::6815:51d7🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:a537🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.81.215Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.165.55🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSheidi.ns.cloudflare.com ⭐
A2606:4700:50::a29f:26ec🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRheidi.ns.cloudflare.com
A2803:f800:50::6ca2:c2ec🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRheidi.ns.cloudflare.com
A2a06:98c1:50::ac40:22ec🇺🇸 Cloudflare2a06:98c1:50::/45
PTRheidi.ns.cloudflare.com
A108.162.194.236🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRheidi.ns.cloudflare.com
A162.159.38.236Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRheidi.ns.cloudflare.com
A172.64.34.236🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRheidi.ns.cloudflare.com
NStim.ns.cloudflare.com
A2606:4700:58::adf5:3b91🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtim.ns.cloudflare.com
A2803:f800:50::6ca2:c191🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRtim.ns.cloudflare.com
A2a06:98c1:50::ac40:2191🇺🇸 Cloudflare2a06:98c1:50::/45
PTRtim.ns.cloudflare.com
A108.162.193.145🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtim.ns.cloudflare.com
A172.64.33.145🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtim.ns.cloudflare.com
A173.245.59.145🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtim.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.81.215, 172.67.165.55
IPv6 hints2606:4700:3033::6815:51d7, 2606:4700:3035::ac43:a537
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=187, name=cloudflare-ech.com
SOAheidi.ns.cloudflare.comdns@cloudflare.com serial=2400869472

tech

DNSSEC🔒 Signed (DS record present)
NSns01.trs-dns.com ⭐
NSns.trs-dns.com
NSns01.trs-dns.net
NSns10.trs-dns.info
NSns10.trs-dns.org
SOAns.trs-dns.comtrs-ops@tucows.com serial=1775963351
🔒 HSTS Preload (+subdomains)

Same first word

opentenders.es
opentenders.online
opentenders.com
opentenders.tech

Similar names

donpetersen.net

DNS History

10 records (6 active, 4 former)

NSheidi.ns.cloudflare.comtim.ns.cloudflare.comA104.21.81.215172.67.165.552606:4700:3033::6815:51d72606:4700:3035::ac43:a537188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::
●NSheidi.ns.cloudflare.com2026-03-15 → 2026-04-12 · 2 obs
● 2026-03-15 07:10:26
● 2026-04-12 03:39:26
●NStim.ns.cloudflare.com2026-03-15 → 2026-04-12 · 2 obs
● 2026-03-15 07:10:26
● 2026-04-12 03:39:26
●A104.21.81.2152026-03-15 → 2026-04-12 · 10 obs
● 2026-03-15 07:10:26
● 2026-03-16 03:29:42
○ 2026-03-17 04:02:06
● 2026-03-18 04:56:14
○ 2026-03-21 08:05:32
○ 2026-03-29 06:21:32
● 2026-04-03 03:45:50
● 2026-04-04 02:30:20
○ 2026-04-07 17:03:28
● 2026-04-12 03:39:26
●A172.67.165.552026-03-15 → 2026-04-12 · 10 obs
● 2026-03-15 07:10:26
● 2026-03-16 03:29:42
○ 2026-03-17 04:02:06
● 2026-03-18 04:56:14
○ 2026-03-21 08:05:32
○ 2026-03-29 06:21:32
● 2026-04-03 03:45:50
● 2026-04-04 02:30:20
○ 2026-04-07 17:03:28
● 2026-04-12 03:39:26
○A188.114.96.02026-03-17 → 2026-04-07 · 9 obs
○ 2026-03-16 03:29:42
● 2026-03-17 04:02:06
○ 2026-03-18 04:56:14
● 2026-03-21 08:05:32
● 2026-03-29 06:21:32
○ 2026-04-03 03:45:50
○ 2026-04-04 02:30:20
● 2026-04-07 17:03:28
○ 2026-04-12 03:39:26
○A188.114.97.02026-03-17 → 2026-04-07 · 9 obs
○ 2026-03-16 03:29:42
● 2026-03-17 04:02:06
○ 2026-03-18 04:56:14
● 2026-03-21 08:05:32
● 2026-03-29 06:21:32
○ 2026-04-03 03:45:50
○ 2026-04-04 02:30:20
● 2026-04-07 17:03:28
○ 2026-04-12 03:39:26
●A2606:4700:3033::6815:51d72026-03-15 → 2026-04-12 · 10 obs
● 2026-03-15 07:10:26
○ 2026-03-16 03:29:42
● 2026-03-17 04:02:06
● 2026-03-18 04:56:14
○ 2026-03-21 08:05:32
○ 2026-03-29 06:21:32
● 2026-04-03 03:45:50
○ 2026-04-04 02:30:20
○ 2026-04-07 17:03:28
● 2026-04-12 03:39:26
●A2606:4700:3035::ac43:a5372026-03-15 → 2026-04-12 · 10 obs
● 2026-03-15 07:10:26
○ 2026-03-16 03:29:42
● 2026-03-17 04:02:06
● 2026-03-18 04:56:14
○ 2026-03-21 08:05:32
○ 2026-03-29 06:21:32
● 2026-04-03 03:45:50
○ 2026-04-04 02:30:20
○ 2026-04-07 17:03:28
● 2026-04-12 03:39:26
○A2a06:98c1:3120::2026-03-16 → 2026-04-07 · 10 obs
○ 2026-03-15 07:10:26
● 2026-03-16 03:29:42
○ 2026-03-17 04:02:06
○ 2026-03-18 04:56:14
● 2026-03-21 08:05:32
● 2026-03-29 06:21:32
○ 2026-04-03 03:45:50
● 2026-04-04 02:30:20
● 2026-04-07 17:03:28
○ 2026-04-12 03:39:26
○A2a06:98c1:3121::2026-03-16 → 2026-04-07 · 10 obs
○ 2026-03-15 07:10:26
● 2026-03-16 03:29:42
○ 2026-03-17 04:02:06
○ 2026-03-18 04:56:14
● 2026-03-21 08:05:32
● 2026-03-29 06:21:32
○ 2026-04-03 03:45:50
● 2026-04-04 02:30:20
● 2026-04-07 17:03:28
○ 2026-04-12 03:39:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
techns01.trs-dns.com, ns10.trs-dns.org, ns10.trs-dns.info, ns01.trs-dns.net8 records
opentenders.techheidi.ns.cloudflare.com, tim.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.34.236

NS records: heidi.ns.cloudflare.com, tim.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 315ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.165.55, 104.21.81.215
AAAA22606:4700:3035::ac43:a537, 2606:4700:3033::6815:51d7
NS2heidi.ns.cloudflare.com, tim.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1heidi.ns.cloudflare.com dns.cloudflare.c

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns01.trs-dns.com, ns01.trs-dns.com, ns10.trs-dns.org...)

Analysis

IP Addresses

opentenders.tech resolves to four IP numbers: 2606:4700:3033::6815:51d7, 2606:4700:3035::ac43:a537, 104.21.81.215 and 172.67.165.55.

other host names for instance xcjiafa.com, lemoncasinoplay.net, l9m.top, banoticia.com and opengate-3.digital share IP numbers with opentenders.tech.

Name Servers

opentenders.tech is delegated to two name servers: heidi.ns.cloudflare.com and tim.ns.cloudflare.com.

opentenders.tech shares the same name server setup as other domains, for example civictech.ngo, aavewebrewards.icu, usefulcoin.club, petitions.pro and pamavesco.com.

opentenders.tech at least partially shares name servers with other domains, for instance mediderme.com, niranjanaswami.net, 668trip.net, 62addc.com and ixion.it.

These name servers are commonly used with adrian.ns.cloudflare.com, vern.ns.cloudflare.com, kenneth.ns.cloudflare.com and rex.ns.cloudflare.com.

Host names with six IP numbers:

heidi.ns.cloudflare.com points to: 2606:4700:50::a29f:26ec, 2803:f800:50::6ca2:c2ec, 2a06:98c1:50::ac40:22ec, 108.162.194.236, 162.159.38.236 and 172.64.34.236; tim.ns.cloudflare.com points to: 2606:4700:58::adf5:3b91, 2803:f800:50::6ca2:c191, 2a06:98c1:50::ac40:2191, 108.162.193.145, 172.64.33.145 and 173.245.59.145.