studyfolio.com - robtex.com
studyfolio.com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2a02:2350:5:113:8076:402d:abe2:2ab8🇩🇰 ONECOM2a02:2350::/32 One.com A/S | ||||||
| A | 77.111.243.69🇩🇰 ONECOM77.111.240.0/22 One.com A/S | ||||||
| NS | ns01.forward.antagonist.nl ⭐ | ||||||
| A | 2001:67c:28cc::16ONECOM-INFRA2001:67c:28cc::/48 | ||||||
| PTR | ns01.forward.antagonist.nl | ||||||
| A | 195.206.121.16ONECOM-INFRA195.206.121.0/24 | ||||||
| NS | ns02.forward.antagonist.net | ||||||
| A | 2001:67c:3c0::16🇩🇰 ONECOM2001:67c:3c0::/48 | ||||||
| PTR | ns02.forward.antagonist.net | ||||||
| A | 185.10.11.16ONECOM185.10.11.0/24 | ||||||
| TXT | v=spf1 include:_custspf.g1i.one a mx ip4:195.211.72.0/22 ip4:141.138.168.0/21... | ||||||
| SOA | ns01.forward.antagonist.nlhostmaster@forward.antagonist.nl 2026-10-08 #1 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1791746554 | ||||||
Previously MX for
studyfolio.com |
Same first word
studyfolio.pages.dev |
studyfolio.com |
studyfolio.in |
Similar names
Previous names
Next names
DNS History
20 records (4 active, 16 former)
●NSns01.forward.antagonist.nl2026-10-08 → 2026-10-11 · 3 obs
● 2026-10-08 17:29:12
● 2026-10-11 19:44:36
●NSns02.forward.antagonist.net2026-10-08 → 2026-10-11 · 3 obs
● 2026-10-08 17:29:12
● 2026-10-11 19:44:36
○NSns1.md-pb-iqsv.com2015-07-08 → 2015-07-08 · 3 obs
○ 2016-05-05 20:27:18
○ 2026-10-11 19:44:36
○NSns1.p01.antagonist.nl2020-02-05 → 2020-02-05 · 4 obs
● 2020-02-05 01:32:46
○ 2026-10-08 17:29:12
○ 2026-10-11 19:44:36
○NSns1.webhostingserver.nl2017-02-18 → 2017-02-18 · 4 obs
● 2017-02-18 08:14:18
○ 2020-02-05 01:32:46
○ 2026-10-11 19:44:36
○NSns2.md-pb-iqsv.com2015-07-08 → 2015-07-08 · 3 obs
○ 2016-05-05 20:27:18
○ 2026-10-11 19:44:36
○NSns2.p01.antagonist.net2020-02-05 → 2020-02-05 · 4 obs
● 2020-02-05 01:32:46
○ 2026-10-08 17:29:12
○ 2026-10-11 19:44:36
○NSns2.webhostingserver.nl2017-02-18 → 2017-02-18 · 4 obs
● 2017-02-18 08:14:18
○ 2020-02-05 01:32:46
○ 2026-10-11 19:44:36
○NSns3.p01.antagonist.de2020-02-05 → 2020-02-05 · 4 obs
● 2020-02-05 01:32:46
○ 2026-10-08 17:29:12
○ 2026-10-11 19:44:36
○NSns3.webhostingserver.nl2017-02-18 → 2017-02-18 · 4 obs
● 2017-02-18 08:14:18
○ 2020-02-05 01:32:46
○ 2026-10-11 19:44:36
○MXmail.studyfolio.com2017-02-18 → 2017-02-18 · 4 obs
● 2017-02-18 08:14:18
○ 2020-02-05 01:32:46
○ 2026-10-11 19:44:36
○MXmx1.p01.antagonist.nl2020-02-05 → 2020-02-05 · 4 obs
● 2020-02-05 01:32:46
○ 2026-10-08 17:29:12
○ 2026-10-11 19:44:36
○MXstudyfolio.com2015-07-08 → 2015-07-08 · 3 obs
○ 2016-05-05 20:27:18
○ 2026-10-11 19:44:36
○A141.138.168.1222017-02-18 → 2017-02-18 · 4 obs
● 2017-02-18 08:14:18
○ 2020-02-05 01:32:46
○ 2026-10-11 19:44:36
○A195.211.74.1122020-02-05 → 2020-02-05 · 4 obs
● 2020-02-05 01:32:46
○ 2026-10-08 17:29:12
○ 2026-10-11 19:44:36
●A2a02:2350:5:113:8076:402d:abe2:2ab82026-10-08 → 2026-10-11 · 3 obs
● 2026-10-08 17:29:12
● 2026-10-11 19:44:36
○A2a03:3c00:a001:7010::12020-02-05 → 2020-02-05 · 4 obs
● 2020-02-05 01:32:46
○ 2026-10-08 17:29:12
○ 2026-10-11 19:44:36
○A2a03:3c00:a002:177::10072017-02-18 → 2017-02-18 · 4 obs
● 2017-02-18 08:14:18
○ 2020-02-05 01:32:46
○ 2026-10-11 19:44:36
○A66.34.63.2342015-07-08 → 2015-07-08 · 3 obs
○ 2016-05-05 20:27:18
○ 2026-10-11 19:44:36
●A77.111.243.692026-10-08 → 2026-10-11 · 3 obs
● 2026-10-08 17:29:12
● 2026-10-11 19:44:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| studyfolio.com | ns01.forward.antagonist.nl, ns02.forward.antagonist.net | - |
✅ Authoritative Response
Server:185.10.11.16
NS records: ns01.forward.antagonist.nl, ns02.forward.antagonist.net
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 959ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 77.111.243.69 |
| AAAA | 1 | 2a02:2350:5:113:8076:402d:abe2:2ab8 |
| NS | 2 | ns01.forward.antagonist.nl, ns02.forward.antagonist.net |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 include:_custspf.g1i.one a mx ip4 |
| SOA | 1 | ns01.forward.antagonist.nl hostmaster.fo |
Analysis
IP Addresses
studyfolio.com resolves to the IP addresses 77.111.243.69 and 2a02:2350:5:113:8076:402d:abe2:2ab8
Additional host names — denied.be, beethoveninvest.nl, snellesokken.be and two others — share IP numbers with studyfolio.com.
Name Servers
studyfolio.com is delegated to two name servers: ns02.forward.antagonist.net and ns01.forward.antagonist.nl.
studyfolio.com shares its name server setup with other domains, including warmtepomponderdeelgigant.nl, williamelferinkdataconsulting.nl, hsmlei.nl and two others.
ns02.forward.antagonist.net and ns01.forward.antagonist.nl each resolve to two IP addresses: ns02.forward.antagonist.net points to 185.10.11.16 and 2001:67c:3c0::16, while ns01.forward.antagonist.nl points to 195.206.121.16 and 2001:67c:28cc::16.