bitterweb.nl - robtex.com

bitterweb.nl

DNSSEC⚠️ Not signed
A91.198.170.116🇳🇱 Esmero91.198.170.0/23 ESMERO-BLOCK-1
PTRplesk16.esmero.nl
NSns2.esmero.nl ⭐
A2a01:7c8:bb01:147::1🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network
PTRns2.esmero.nl
A31.14.96.246🇳🇱 TRANSIP-AS31.14.96.0/22 TransIP BV Amsterdam, The Netherlands
PTRns2.esmero.nl
NSns1.esmero.nl
A2a0b:c140:aa::10🇳🇱 Esmero2a0b:c140::/32 ESMERO-BLOCKV6-1
PTRns1.esmero.nl
A91.198.170.10🇳🇱 Esmero91.198.170.0/23 ESMERO-BLOCK-1
PTRns1.esmero.nl
MXmxs10.esmero.nl ⭐
A2a0b:c140:aa::31🇳🇱 Esmero2a0b:c140::/32 ESMERO-BLOCKV6-1
PTRmailscan1.esmero.nl
A2a0b:c140:aa::33🇳🇱 Esmero2a0b:c140::/32 ESMERO-BLOCKV6-1
PTRmailscan5.esmero.nl
A51.38.124.81🇫🇷 OVH51.38.0.0/16
PTRmailscan4.esmero.nl
A91.198.170.31🇳🇱 Esmero91.198.170.0/23 ESMERO-BLOCK-1
PTRmailscan1.esmero.nl
A91.198.170.33🇳🇱 Esmero91.198.170.0/23 ESMERO-BLOCK-1
PTRmailscan5.esmero.nl
MXmxs20.esmero.nl(20)
A2a0b:c140:aa::31🇳🇱 Esmero2a0b:c140::/32 ESMERO-BLOCKV6-1
PTRmailscan1.esmero.nl
A2a0b:c140:aa::33🇳🇱 Esmero2a0b:c140::/32 ESMERO-BLOCKV6-1
PTRmailscan5.esmero.nl
A51.38.124.81🇫🇷 OVH51.38.0.0/16
PTRmailscan4.esmero.nl
A91.198.170.31🇳🇱 Esmero91.198.170.0/23 ESMERO-BLOCK-1
PTRmailscan1.esmero.nl
A91.198.170.33🇳🇱 Esmero91.198.170.0/23 ESMERO-BLOCK-1
PTRmailscan5.esmero.nl
TXTv=spf1 +a +mx +a:plesk9.esmero.nl include:spf.esmero.nl ~all
SOAns2.esmero.nlrene\@bitter.planet.nl 2026-07-26 #2

nl

DNSSEC🔒 Signed (DS record present)
NSns1.dns.nl ⭐
NSns3.dns.nl
NSns4.dns.nl
TXTnl zone update: 2026-07-31 16:00:01 +0000 (EPOCH 1785513601)
SOAns1.dns.nldns@sidn.nl 2026-07-31 #32
WOT: SAFE (61/100)

Subdomains

mail.bitterweb.nl
www.bitterweb.nl

Same first word

bitterweb.nl
bitterweb.de

DNS History

13 records (5 active, 8 former)

200920112013201520172019202120232025NSns1.esmero.nlns2.esmero.nlns1.watsnel.nlns2.watsnel.nlMXmxs10.esmero.nlmxs20.esmero.nlmail.bitterweb.nlmx001.hosting-concepts.nlmx002.hosting-concepts.nlmx003.hosting-concepts.nlse002.hosting-concepts.nlA91.198.170.11689.255.8.115
●NSns1.esmero.nl2026-07-31 → 2026-07-31 · 3 obs
○ 2018-06-26 05:58:48
● 2026-07-31 08:12:58
● 2026-07-31 17:02:10
○NSns1.watsnel.nl2008-11-23 → 2018-06-26 · 4 obs
● 2008-11-23 15:46:32
● 2018-06-26 05:58:48
○ 2026-07-31 08:12:58
○ 2026-07-31 17:02:10
●NSns2.esmero.nl2026-07-31 → 2026-07-31 · 3 obs
○ 2018-06-26 05:58:48
● 2026-07-31 08:12:58
● 2026-07-31 17:02:10
○NSns2.watsnel.nl2008-11-23 → 2018-06-26 · 4 obs
● 2008-11-23 15:46:32
● 2018-06-26 05:58:48
○ 2026-07-31 08:12:58
○ 2026-07-31 17:02:10
○MXmail.bitterweb.nl2008-11-23 → 2008-11-23 · 3 obs
● 2008-11-23 15:46:32
○ 2015-06-07 03:01:00
○ 2026-07-31 17:02:10
○MXmx001.hosting-concepts.nl2008-11-23 → 2018-06-26 · 4 obs
● 2008-11-23 15:46:32
● 2018-06-26 05:58:48
○ 2026-07-31 08:12:58
○ 2026-07-31 17:02:10
○MXmx002.hosting-concepts.nl2008-11-23 → 2018-06-26 · 4 obs
● 2008-11-23 15:46:32
● 2018-06-26 05:58:48
○ 2026-07-31 08:12:58
○ 2026-07-31 17:02:10
○MXmx003.hosting-concepts.nl2008-11-23 → 2018-06-26 · 4 obs
● 2008-11-23 15:46:32
● 2018-06-26 05:58:48
○ 2026-07-31 08:12:58
○ 2026-07-31 17:02:10
●MXmxs10.esmero.nl2026-07-31 → 2026-07-31 · 3 obs
○ 2018-06-26 05:58:48
● 2026-07-31 08:12:58
● 2026-07-31 17:02:10
●MXmxs20.esmero.nl2026-07-31 → 2026-07-31 · 3 obs
○ 2018-06-26 05:58:48
● 2026-07-31 08:12:58
● 2026-07-31 17:02:10
○MXse002.hosting-concepts.nl2015-06-07 → 2018-06-26 · 5 obs
○ 2008-11-23 15:46:32
● 2015-06-07 03:01:00
● 2018-06-26 05:58:48
○ 2026-07-31 08:12:58
○ 2026-07-31 17:02:10
○A89.255.8.1152008-11-23 → 2018-06-26 · 4 obs
● 2008-11-23 15:46:32
● 2018-06-26 05:58:48
○ 2026-07-31 08:12:58
○ 2026-07-31 17:02:10
●A91.198.170.1162026-07-31 → 2026-07-31 · 3 obs
○ 2018-06-26 05:58:48
● 2026-07-31 08:12:58
● 2026-07-31 17:02:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
nlns1.dns.nl, ns4.dns.nl, ns3.dns.nl-
bitterweb.nlns1.esmero.nl, ns2.esmero.nl-

✅ Authoritative Response

Server:91.198.170.10

NS records: ns1.esmero.nl, ns2.esmero.nl

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bitterweb.nl (unsigned zone)

⏱️ Timing

Total: 504ms | Queries: -

📄 Records

TypeCountSample Data
A191.198.170.116
NS2ns1.esmero.nl, ns2.esmero.nl
MX2mxs20.esmero.nl (pri: 20), mxs10.esmero.nl (pri: 10)
TXT1v=spf1 +a +mx +a:plesk9.esmero.nl includ
SOA1ns2.esmero.nl rene\.bitter.planet.nl

Analysis

Hierarchy

mail.bitterweb.nl and www.bitterweb.nl each fall under bitterweb.nl as their parent domain.

IP Addresses

bitterweb.nl resolves to just one IP address, 91.198.170.116.

Two other host names, along with curecare.nl, beapronk.nl and digitalstreet.be, also share IP numbers with bitterweb.nl.

Name Servers

The NS records for bitterweb.nl delegate to ns1.esmero.nl and ns2.esmero.nl.

bitterweb.nl shares its NS records with other domains, for example id-documents.com, 10telecom.nl, van-drie.nl and two others.

Some of bitterweb.nl's name servers are also used by other domains, including sites-for-you.com, djroy.nl, hbdjschool.nl and ficks.nl.

These name servers are regularly seen alongside cloud1.martinmedia.nl and cloud2.martinmedia.nl as name servers.

ns1.esmero.nl resolves to 91.198.170.10 and 2a0b:c140:aa::10. Likewise, ns2.esmero.nl resolves to 31.14.96.246 and 2a01:7c8:bb01:147::1 — two IP addresses apiece.

Mail Servers

bitterweb.nl is served by two mail servers, mxs10.esmero.nl and mxs20.esmero.nl.

Among the domains sharing a mail server setup with bitterweb.nl are brabocars.eu, amsterdamhouseboats.nl, goedhosten.nl and two others.

At least a portion of bitterweb.nl's mail servers are also used by other domains, for example ruplex.com.

Host names directing to five IP addresses:

mxs10.esmero.nl has four IP addresses — 51.38.124.81, 91.198.170.31, 91.198.170.33 and two others.

mxs20.esmero.nl has four IP addresses — 51.38.124.81, 91.198.170.31, 91.198.170.33 and two others.

mxs10.esmero.nl and mxs20.esmero.nl each have 2a0b:c140:aa::31 IP addresses.

mxs10.esmero.nl and mxs20.esmero.nl each have 2a0b:c140:aa::33 IP addresses.

mxs10.esmero.nl and mxs20.esmero.nl each have 51.38.124.81 IP addresses.

mxs10.esmero.nl and mxs20.esmero.nl each have 91.198.170.31 IP addresses.

mxs10.esmero.nl and mxs20.esmero.nl each have 91.198.170.33 IP addresses.