`osf.dev`

DNSSEC	⚠️ Not signed
A	2600:1f18:16e:df01::258^{🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix}
A	2600:1f18:16e:df01::259^{🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix}
A	18.208.88.157^{🇺🇸 Amazon18.208.0.0/13 EC2 IAD prefix}
A	98.84.224.111^{🇺🇸 Amazon98.80.0.0/13 EC2 IAD Prefix}
NS	`kiki.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3ab4^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kiki.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0b4^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kiki.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20b4^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kiki.ns.cloudflare.com`
		A	108.162.192.180^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kiki.ns.cloudflare.com`
		A	172.64.32.180^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kiki.ns.cloudflare.com`
		A	173.245.58.180^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kiki.ns.cloudflare.com`
NS	`mario.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bcb^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mario.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1cb^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`mario.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21cb^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`mario.ns.cloudflare.com`
		A	108.162.193.203^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mario.ns.cloudflare.com`
		A	172.64.33.203^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mario.ns.cloudflare.com`
		A	173.245.59.203^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mario.ns.cloudflare.com`
MX	`eforward1.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward2.registrar-servers.com` ⭐
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward3.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward4.registrar-servers.com`⁽¹⁵⁾
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward5.registrar-servers.com`⁽²⁰⁾
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
TXT	`v=spf1 include:spf.efwd.registrar-servers.com ~all`
HTTPS	HTTP/2
SOA	`kiki.ns.cloudflare.com`dns@cloudflare.com serial=2407471482

`dev`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=1

🔒 HSTS Preload (+subdomains)

Subdomains

www.osf.dev

Same first word

osf.bg

osf.co

osf.fi

osf.jp

osf.cc

osf.cn

osf.eu

osf.co.kr

osf.pe

osf.am

osf.digital

osf.nl

osf.ro

osf.kr

osf.es

osf.to

osf.no

osf.nu

osf.care

osf.ie

osf.se

osf.cz

osf.or.jp

osf.lt

osf.jobs

osf.org.za

osf.ink

osf.pt

osf.org.ua

osf.ch

osf.hu

osf.net.au

osf.at

osf.co.nz

osf.biz

osf.io

osf.fr

osf.ca

osf.ru

osf.careers

osf.de

osf.co.uk

osf.nic.in

osf.su

osf.org

osf.be

osf.com

osf.sk

osf.it

osf.dev

osf.pl

Similar names

fso.cn

fos.ai

sof.az

fso.gov

sof.cl

sfo.ca

sof.news

fso.de

sfo.pl

sof.to

fso.co.nz

sof.one

ofs.edu.sg

fso.me

sof.de

sof.su

sof.org.in

fso.nu

fso.gov.ru

ofs.ru

fos.info

sof.se

ofs.net.tr

sof.it

fos.cc

fso.es

fos.de

ofs.com

fso.com.cn

sof.pl

sfo.co

fso.be

sfo.su

fso.it

sfo.se

sof.bet

fso.ovh

fso.vg

ofs.be

sof.co.in

ofs.qa

sof.com

sof.net

fos.com

fos.es

ofs.cz

sfo.mobi

fos.ngo

sof.photos

sof.co

fos.art.br

sfo.tw

fos.dk

sfo.mx

ofs.org.ar

fos.com.ar

fos.in

sof.com.pl

sfo.biz

sof.me

ofs.ro

sof.vn

sof.edu.pl

fos.com.tw

fos.world

sfo.kz

sof.altervista.org

fos.ie

fos.lt

sof.at

fso.pl

fos.net

ofs.co.il

ofs.org.co

sof.bg

ofs.dk

fos.fi

ofs.cc

ofs.mo.it

sfo.us

ofs.in

sfo.ws

fso.co.ir

sfo.in

ofs.sh.cn

fos.com.my

sfo.cl

sof.net.cn

sof.lt

ofs.kr

sfo.net.cn

sof.be

sfo.gov.ru

fso.se

sof.fr

fos.uk.com

sfo.gotdns.com

sof.dk

ofs.hu

sof.cn

sfo.org

sof.co.id

sof.si

fso.biz

sfo.co.il

fos.edu.om

fos.eu

fso.pt

sof.fi

ofs.su

sof.es

ofs.equipment

fos.company

sof.tv

ofs.es

fos.sg

fos.com.au

sfo.me

sof.us

fos.ro

sof.center

ofs.nu

fos.hu

sof.beauty

fos.gg

sof.edu.vn

sfo.de

ofs.info

sof.ee

fos.org.il

sof.com.br

ofs.org.my

fso.us

ofs.org.br

sfo.ru

sfo.ch

sfo.no

sfo.gov

sfo.at

fso.eu

fso.no

sfo.com.br

fos.org

fos.ink

sfo.gov.uk

fos.co.uk

fos.org.uk

DNS History

24 records (11 active, 13 former)

●NSkiki.ns.cloudflare.com2020-02-06 → 2026-07-04 · 2 obs

● 2020-02-06 06:27:16
● 2026-07-04 17:46:16

●NSmario.ns.cloudflare.com2020-02-06 → 2026-07-04 · 2 obs

● 2020-02-06 06:27:16
● 2026-07-04 17:46:16

●MXeforward1.registrar-servers.com2020-02-06 → 2026-07-04 · 2 obs

● 2020-02-06 06:27:16
● 2026-07-04 17:46:16

●MXeforward2.registrar-servers.com2020-02-06 → 2026-07-04 · 2 obs

● 2020-02-06 06:27:16
● 2026-07-04 17:46:16

●MXeforward3.registrar-servers.com2020-02-06 → 2026-07-04 · 2 obs

● 2020-02-06 06:27:16
● 2026-07-04 17:46:16

●MXeforward4.registrar-servers.com2020-02-06 → 2026-07-04 · 2 obs

● 2020-02-06 06:27:16
● 2026-07-04 17:46:16

●MXeforward5.registrar-servers.com2020-02-06 → 2026-07-04 · 2 obs

● 2020-02-06 06:27:16
● 2026-07-04 17:46:16

○A13.52.188.952026-03-11 → 2026-05-03 · 13 obs

○ 2026-03-08 08:47:44
● 2026-03-11 02:42:52
○ 2026-03-11 04:39:08
● 2026-03-14 15:38:58
● 2026-03-14 19:09:56
○ 2026-03-16 01:42:10
○ 2026-03-24 08:13:32
● 2026-04-03 04:25:30
○ 2026-04-03 17:33:42
○ 2026-04-30 07:38:28
● 2026-05-03 07:20:56
○ 2026-05-04 08:32:04
○ 2026-07-04 17:46:16

○A138.197.214.02021-09-20 → 2021-09-20 · 4 obs

○ 2020-02-06 06:27:16
● 2021-09-20 21:29:34
○ 2026-02-25 04:05:58
○ 2026-07-04 17:46:16

●A18.208.88.1572026-02-25 → 2026-07-04 · 34 obs

○ 2026-02-25 04:05:58
● 2026-02-25 10:37:02
○ 2026-03-03 05:53:42
○ 2026-03-16 01:42:10
● 2026-03-16 19:41:28
○ 2026-03-17 05:18:56
● 2026-03-23 17:05:34
○ 2026-03-24 08:13:32
○ 2026-04-03 04:25:30
● 2026-04-03 17:33:42
○ 2026-04-03 18:46:26
● 2026-04-09 02:15:12
○ 2026-04-09 03:00:38
○ 2026-04-09 12:57:38
● 2026-04-11 17:42:22
○ 2026-04-13 01:19:12
● 2026-04-19 12:00:24
○ 2026-04-19 14:50:22
○ 2026-05-05 21:47:20
● 2026-05-08 14:27:26
○ 2026-05-08 15:48:40
○ 2026-05-10 10:03:24
● 2026-05-11 10:57:00
○ 2026-05-11 14:14:20
● 2026-05-13 00:42:52
○ 2026-05-13 04:59:06
○ 2026-05-29 07:07:44
● 2026-06-12 02:38:50
● 2026-06-12 06:52:20
○ 2026-06-13 07:05:42
● 2026-06-14 00:20:06
○ 2026-06-15 12:39:16
● 2026-07-04 11:55:10
● 2026-07-04 17:46:16

●A2600:1f18:16e:df01::2582026-02-25 → 2026-07-04 · 34 obs

●A2600:1f18:16e:df01::2592026-02-25 → 2026-07-04 · 34 obs

○A2600:1f1c:446:4900::2582026-03-11 → 2026-05-03 · 13 obs

○A2600:1f1c:446:4900::2592026-03-11 → 2026-05-03 · 13 obs

○A2600:1f1c:471:9d00:53b8:d5a3:8371:32f92021-09-20 → 2021-09-20 · 4 obs

○ 2020-02-06 06:27:16
● 2021-09-20 21:29:34
○ 2026-02-25 04:05:58
○ 2026-07-04 17:46:16

○A2600:1f1c:471:9d00:64a9:5908:2245:64e02021-09-20 → 2021-09-20 · 4 obs

○ 2020-02-06 06:27:16
● 2021-09-20 21:29:34
○ 2026-02-25 04:05:58
○ 2026-07-04 17:46:16

○A2a05:d014:58f:6200::2582026-02-25 → 2026-06-15 · 44 obs

○ 2021-09-20 21:29:34
● 2026-02-25 04:05:58
○ 2026-02-25 10:37:02
● 2026-03-03 05:53:42
● 2026-03-08 08:47:44
○ 2026-03-11 02:42:52
● 2026-03-11 04:39:08
○ 2026-03-14 15:38:58
○ 2026-03-14 19:09:56
● 2026-03-16 01:42:10
○ 2026-03-16 19:41:28
● 2026-03-17 05:18:56
○ 2026-03-23 17:05:34
● 2026-03-24 08:13:32
○ 2026-04-03 04:25:30
○ 2026-04-03 17:33:42
● 2026-04-03 18:46:26
○ 2026-04-09 02:15:12
● 2026-04-09 03:00:38
● 2026-04-09 12:57:38
○ 2026-04-11 17:42:22
● 2026-04-13 01:19:12
○ 2026-04-19 12:00:24
● 2026-04-19 14:50:22
● 2026-04-30 07:38:28
○ 2026-05-03 07:20:56
● 2026-05-04 08:32:04
● 2026-05-05 21:47:20
○ 2026-05-08 14:27:26
● 2026-05-08 15:48:40
○ 2026-05-10 07:08:50
● 2026-05-10 10:03:24
○ 2026-05-11 10:57:00
● 2026-05-11 14:14:20
○ 2026-05-13 00:42:52
● 2026-05-13 04:59:06
● 2026-05-29 07:07:44
○ 2026-06-12 02:38:50
○ 2026-06-12 06:52:20
● 2026-06-13 07:05:42
○ 2026-06-14 00:20:06
● 2026-06-15 12:39:16
○ 2026-07-04 11:55:10
○ 2026-07-04 17:46:16

○A2a05:d014:58f:6200::2592026-02-25 → 2026-06-15 · 44 obs

○A35.157.26.1352026-02-25 → 2026-06-15 · 44 obs

○A38.108.68.422020-02-06 → 2020-02-06 · 3 obs

● 2020-02-06 06:27:16
○ 2021-09-20 21:29:34
○ 2026-07-04 17:46:16

○A50.18.120.102021-09-20 → 2021-09-20 · 4 obs

○ 2020-02-06 06:27:16
● 2021-09-20 21:29:34
○ 2026-02-25 04:05:58
○ 2026-07-04 17:46:16

○A52.52.192.1912026-03-11 → 2026-05-03 · 13 obs

○A63.176.8.2182026-02-25 → 2026-06-15 · 44 obs

●A98.84.224.1112026-02-25 → 2026-07-04 · 34 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
osf.dev	kiki.ns.cloudflare.com, mario.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.203

NS records: kiki.ns.cloudflare.com, mario.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for osf.dev (unsigned zone)

⏱️ Timing

Total: 2324ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`18.208.88.157, 98.84.224.111`
AAAA	2	`2600:1f18:16e:df01::258, 2600:1f18:16e:df01::259`
NS	2	`kiki.ns.cloudflare.com, mario.ns.cloudflare.com`
MX	5	`eforward1.registrar-servers.com (pri: 10, eforward2.registrar-servers.com (pri: 10...`
TXT	1	`v=spf1 include:spf.efwd.registrar-server`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2"]`
SOA	1	`kiki.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

www.osf.dev is a subdomain of osf.dev.

IP Addresses

osf.dev directs to four IP numbers, which are 18.208.88.157, 98.84.224.111, 2600:1f18:16e:df01::258 and 2600:1f18:16e:df01::259.

emilwidmer.netlify.com, prvnbist.netlify.com, ondosis.netlify.com and two other host names share IP numbers with osf.dev.

Name Servers

The NS records for osf.dev delegate to kiki.ns.cloudflare.com and mario.ns.cloudflare.com.

osf.dev uses the same name servers as several other domains — among them sefon.me, sybo.com, sybo.in and two more.

The name servers of osf.dev overlap at least partially with those of other domains — among them bwin.com.gr, mingleup.de, cathprofstandards.com and two more.

The name servers elaine.ns.cloudflare.com, walt.ns.cloudflare.com and nataly.ns.cloudflare.com are commonly seen alongside these name servers.

Hostnames that resolve to 6 IP addresses:

kiki.ns.cloudflare.com maps to 108.162.192.180, 172.64.32.180, 173.245.58.180 and 3 additional IP addresses.

mario.ns.cloudflare.com maps to 108.162.193.203, 172.64.33.203, 173.245.59.203 and 3 additional IP addresses.