osf.com - dns.ninja

`osf.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:4b7a^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::ac43:af96^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.75.122^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.175.150^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`drew.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3ba0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`drew.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1a0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`drew.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21a0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`drew.ns.cloudflare.com`
		A	108.162.193.160^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`drew.ns.cloudflare.com`
		A	172.64.33.160^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`drew.ns.cloudflare.com`
		A	173.245.59.160^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`drew.ns.cloudflare.com`
NS	`violet.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aed^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`violet.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0ed^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`violet.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20ed^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`violet.ns.cloudflare.com`
		A	108.162.192.237^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`violet.ns.cloudflare.com`
		A	172.64.32.237^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`violet.ns.cloudflare.com`
		A	173.245.58.237^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`violet.ns.cloudflare.com`
MX	`usb-smtp-inbound-1.mimecast.com` ⭐
		A	170.10.150.242^{🇺🇸 Mimecast-NA170.10.150.0/24 Mimecast NA}
			PTR	`usb-smtp-delivery-2.mimecast.com`
		A	170.10.152.242^{🇺🇸 Mimecast-NA170.10.152.0/24 Mimecast NA}
			PTR	`usb-smtp-delivery-2.mimecast.com`
MX	`usb-smtp-inbound-2.mimecast.com` ⭐
		A	170.10.150.242^{🇺🇸 Mimecast-NA170.10.150.0/24 Mimecast NA}
			PTR	`usb-smtp-delivery-2.mimecast.com`
		A	170.10.152.242^{🇺🇸 Mimecast-NA170.10.152.0/24 Mimecast NA}
			PTR	`usb-smtp-delivery-2.mimecast.com`
TXT	`MS=ms78825633`
TXT	`v=spf1 include:usb._netblocks.mimecast.com a:osf-smtp.osf.com include:spf.pro...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.75.122, 172.67.175.150
		IPv6 hints	2606:4700:3032::6815:4b7a, 2606:4700:3032::ac43:af96
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=239, name=cloudflare-ech.com
SOA	`drew.ns.cloudflare.com`dns@cloudflare.com serial=2409207306

`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.net`nstld@verisign-grs.com serial=1786278049

rank #178900 globally
rank #74677 in the tld
WOT: SAFE (73/100)
📈 Tranco rank: #328,703

Same first word

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osf.pe

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fos.co.in

fso.services

sfo.net.au

fos.money

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sof.casino

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fso.org.uk

fos.camp

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fos.cz

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ofs.pl

fos.me

ofs.no

sof.nu

ofs.bj

fos.com.vn

fso.in

sfo.be

fso.msk.ru

ofs.ch

fso.com

fso.cz

fos.fr

ofs.org

fos.edu.gr

ofs.me

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fso.ch

sfo.ie

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sof.info

fos.dental

fso.ro

fos.kr

fos.to

sof.sg

sof.tokyo

fos.pt

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ofs.com.pt

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sof.mx

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fso.co

sof.dance

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sof.edu

fos.ch

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sfo.fr

fso.at

ofs.lu

ofs.lt

sof.sk

sfo.dk

fso.com.pt

sfo.limo

sfo.jp

fso.info

fso.net

ofs.se

sof.ru

fos.support

fos.co.th

sfo.com.ua

sfo.fi

fos.or.kr

sfo.govt.nz

DNS History

23 records (8 active, 15 former)

●NSdrew.ns.cloudflare.com2019-04-29 → 2026-08-09 · 3 obs

○ 2016-12-28 23:59:44
● 2019-04-29 20:50:28
● 2026-08-09 12:49:34

○NSpdns05.domaincontrol.com2015-08-01 → 2016-12-28 · 4 obs

● 2015-08-01 16:13:32
● 2016-12-28 23:59:44
○ 2019-04-29 20:50:28
○ 2026-08-09 12:49:34

○NSpdns06.domaincontrol.com2015-08-01 → 2016-12-28 · 4 obs

● 2015-08-01 16:13:32
● 2016-12-28 23:59:44
○ 2019-04-29 20:50:28
○ 2026-08-09 12:49:34

●NSviolet.ns.cloudflare.com2019-04-29 → 2026-08-09 · 3 obs

○ 2016-12-28 23:59:44
● 2019-04-29 20:50:28
● 2026-08-09 12:49:34

○MXgateway.osf.com2015-08-01 → 2019-04-29 · 4 obs

● 2015-08-01 16:13:32
● 2019-04-29 20:50:28
○ 2026-03-23 14:40:36
○ 2026-08-09 12:49:34

○MXsmtp-dpo.osf.com2019-04-29 → 2019-04-29 · 4 obs

○ 2015-08-01 16:13:32
● 2019-04-29 20:50:28
○ 2026-03-23 14:40:36
○ 2026-08-09 12:49:34

●MXusb-smtp-inbound-1.mimecast.com2026-03-23 → 2026-08-09 · 3 obs

○ 2019-04-29 20:50:28
● 2026-03-23 14:40:36
● 2026-08-09 12:49:34

●MXusb-smtp-inbound-2.mimecast.com2026-03-23 → 2026-08-09 · 3 obs

○ 2019-04-29 20:50:28
● 2026-03-23 14:40:36
● 2026-08-09 12:49:34

●A104.21.75.1222026-03-23 → 2026-08-09 · 9 obs

○ 2019-04-29 20:50:28
● 2026-03-23 14:40:36
● 2026-03-26 16:52:50
○ 2026-03-31 07:09:26
● 2026-04-03 17:33:56
● 2026-06-04 01:47:46
○ 2026-07-02 19:28:44
● 2026-08-09 12:49:32
● 2026-08-09 12:49:34

○A104.27.150.1902019-04-29 → 2019-04-29 · 4 obs

○ 2016-12-28 23:59:44
● 2019-04-29 20:50:28
○ 2026-03-23 14:40:36
○ 2026-08-09 12:49:34

○A104.27.151.1902019-04-29 → 2019-04-29 · 4 obs

○ 2016-12-28 23:59:44
● 2019-04-29 20:50:28
○ 2026-03-23 14:40:36
○ 2026-08-09 12:49:34

●A172.67.175.1502026-03-23 → 2026-08-09 · 9 obs

○A188.114.96.02026-03-31 → 2026-07-02 · 8 obs

○ 2026-03-23 14:40:36
○ 2026-03-26 16:52:50
● 2026-03-31 07:09:26
○ 2026-04-03 17:33:56
○ 2026-06-04 01:47:46
● 2026-07-02 19:28:44
○ 2026-08-09 12:49:32
○ 2026-08-09 12:49:34

○A188.114.97.02026-03-31 → 2026-07-02 · 8 obs

○ 2026-03-23 14:40:36
○ 2026-03-26 16:52:50
● 2026-03-31 07:09:26
○ 2026-04-03 17:33:56
○ 2026-06-04 01:47:46
● 2026-07-02 19:28:44
○ 2026-08-09 12:49:32
○ 2026-08-09 12:49:34

○A209.162.222.1782015-11-01 → 2016-12-28 · 5 obs

○ 2015-10-07 15:55:54
● 2015-11-01 03:31:50
● 2016-12-28 23:59:44
○ 2019-04-29 20:50:28
○ 2026-08-09 12:49:34

○A2606:4700:30::681b:96be2019-04-29 → 2019-04-29 · 4 obs

○ 2016-12-28 23:59:44
● 2019-04-29 20:50:28
○ 2026-03-23 14:40:36
○ 2026-08-09 12:49:34

○A2606:4700:30::681b:97be2019-04-29 → 2019-04-29 · 4 obs

○ 2016-12-28 23:59:44
● 2019-04-29 20:50:28
○ 2026-03-23 14:40:36
○ 2026-08-09 12:49:34

●A2606:4700:3032::6815:4b7a2026-03-23 → 2026-08-09 · 9 obs

●A2606:4700:3032::ac43:af962026-08-09 → 2026-08-09 · 3 obs

○ 2026-07-02 19:28:44
● 2026-08-09 12:49:32
● 2026-08-09 12:49:34

○A2606:4700:3036::ac43:af962026-03-23 → 2026-06-04 · 8 obs

○ 2019-04-29 20:50:28
● 2026-03-23 14:40:36
● 2026-03-26 16:52:50
○ 2026-03-31 07:09:26
● 2026-04-03 17:33:56
● 2026-06-04 01:47:46
○ 2026-07-02 19:28:44
○ 2026-08-09 12:49:34

○A2a06:98c1:3120::2026-03-31 → 2026-07-02 · 8 obs

○ 2026-03-23 14:40:36
○ 2026-03-26 16:52:50
● 2026-03-31 07:09:26
○ 2026-04-03 17:33:56
○ 2026-06-04 01:47:46
● 2026-07-02 19:28:44
○ 2026-08-09 12:49:32
○ 2026-08-09 12:49:34

○A2a06:98c1:3121::2026-03-31 → 2026-07-02 · 8 obs

○ 2026-03-23 14:40:36
○ 2026-03-26 16:52:50
● 2026-03-31 07:09:26
○ 2026-04-03 17:33:56
○ 2026-06-04 01:47:46
● 2026-07-02 19:28:44
○ 2026-08-09 12:49:32
○ 2026-08-09 12:49:34

○A69.30.43.2352015-08-01 → 2015-10-07 · 4 obs

● 2015-08-01 16:13:32
● 2015-10-07 15:55:54
○ 2015-11-01 03:31:50
○ 2026-08-09 12:49:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
osf.com	drew.ns.cloudflare.com, violet.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.237

NS records: drew.ns.cloudflare.com, violet.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for osf.com (unsigned zone)

⏱️ Timing

Total: 203ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.175.150, 104.21.75.122`
AAAA	2	`2606:4700:3032::ac43:af96, 2606:4700:3032::6815:4b7a`
NS	2	`drew.ns.cloudflare.com, violet.ns.cloudflare.com`
MX	2	`usb-smtp-inbound-1.mimecast.com (pri: 5), usb-smtp-inbound-2.mimecast.com (pri: 5)`
TXT	2	`MS=ms78825633, v=spf1 include:usb._netblocks.mimecast.c`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`drew.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (drew.ns.cloudflare.com, drew.ns.cloudflare.com, drew.ns.cloudflare.com...)

Analysis

IP Addresses

osf.com has four IP addresses: 104.21.75.122, 172.67.175.150, 2606:4700:3032::6815:4b7a and 2606:4700:3032::ac43:af96.

Two other host names, along with www.smjkfwzxxsz.com, www.campusdean.com and nedms.com, also share IP numbers with osf.com.

Name Servers

osf.com uses two name servers for its delegation: drew.ns.cloudflare.com and violet.ns.cloudflare.com.

osf.com shares its NS records with other domains, for example rapyu.xyz, tajmahal-aachen.de, customstorage.cloud and two others.

osf.com has at least partial name server overlap with other domains, such as thetackguide.com, inspizo.com, vuhu.de and two others.

It is common to see these name servers used together with name servers reese.ns.cloudflare.com and ace.ns.cloudflare.com.

DNS names with 6 IP addresses:

Hostname drew.ns.cloudflare.com directs to 108.162.193.160, 172.64.33.160 and 173.245.59.160 along with 3 other IP addresses.

Hostname violet.ns.cloudflare.com directs to 108.162.192.237, 172.64.32.237 and 173.245.58.237 along with 3 other IP addresses.

Mail Servers

osf.com is served by two mail servers, usb-smtp-inbound-1.mimecast.com and usb-smtp-inbound-2.mimecast.com.

Among the domains sharing a mail server setup with osf.com are evcosound.com, brentwoodadvisors.com, trcctransport.com and two others.

There is at least a partial MX overlap between osf.com and other domains, including infinxinc.com, 7th-streetcasino.com, alchemysoftware.ie and two others.

usb-smtp-inbound-1.mimecast.com and usb-smtp-inbound-2.mimecast.com share the same two IP addresses — 170.10.150.242 and 170.10.152.242.

Both usb-smtp-inbound-1.mimecast.com and usb-smtp-inbound-2.mimecast.com resolve to 170.10.150.242 IP addresses each.

Both usb-smtp-inbound-1.mimecast.com and usb-smtp-inbound-2.mimecast.com resolve to 170.10.152.242 IP addresses each.