`df1.backblaze.com`

DNSSEC	⚠️ Not signed
NS	`ns-1935.awsdns-49.co.uk` ⭐
		A	2600:9000:5307:8f00::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1935.awsdns-49.co.uk`
		A	205.251.199.143^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1935.awsdns-49.co.uk`
NS	`ns-1182.awsdns-19.org`
		A	2600:9000:5304:9e00::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1182.awsdns-19.org`
		A	205.251.196.158^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1182.awsdns-19.org`
NS	`ns-487.awsdns-60.com`
		A	2600:9000:5301:e700::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-487.awsdns-60.com`
		A	205.251.193.231^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-487.awsdns-60.com`
NS	`ns-819.awsdns-38.net`
		A	2600:9000:5303:3300::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-819.awsdns-38.net`
		A	205.251.195.51^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-819.awsdns-38.net`
SOA	`ns-1935.awsdns-49.co.uk`awsdns-hostmaster@amazon.com serial=1

`backblaze.com`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700::6811:503^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700::6811:603^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.17.5.3^{Cloudflare104.17.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.17.6.3^{Cloudflare104.17.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dolly.ns.cloudflare.com` ⭐
NS	`kirk.ns.cloudflare.com`
MX	`mxa-00807701.gslb.pphosted.com` ⭐
MX	`mxb-00807701.gslb.pphosted.com` ⭐
TXT	`ZOOM_verify_Ron95oipJms9tk66npIAXu`
TXT	`aa3e080c1afa4d988018adfd0475b6e6.backblaze.com`
TXT	`adobe-idp-site-verification=c714f3eaaab9ac521433ace704a2da635cb26c5505bf38603...`
TXT	`anthropic-domain-verification-ytjdyq=vxSAQyw80CKUsxL4gsAaE40jC`
TXT	`apple-domain-verification=5ruC0k2u5Lq01vRE`
TXT	`atlassian-domain-verification=AMJR8SyV4u59WzkbckC2vcy4EQowsIxp(0x37695435)yrh4aJNJZ52...`
TXT	`cdn.webflow.com`
TXT	`gamma-domain-verification-jdn6df=MCpel1KzDtlzNZTFTcH4ZYmHv`
TXT	`google-site-verification=VpwAv4ly-fz7Uhu5TaQOLom2N_GbBnBvsnyHWwpoJco`
TXT	`google-site-verification=mYUG8-8sMQmR-3pa7FpMduZUZWln6xN1msJolFrJtJ4`
TXT	`hubspot-domain-verification=Yzg0MjdjMmQtMDJlYS00ZmVhLTk1NTctZDY2NjIwZDc1ZTJl`
TXT	`jamf-site-verification=FNxtNKo-674I3fqoN6Rfhw`
TXT	`jbUc6od99XEXvSgXm3x8fEogcBA`
TXT	`loom-site-verification=46ac06c19f95455a9cab3770a0573a8a`
TXT	`openai-domain-verification=dv-wcToYpmWizH1YNqNawvBlS2P`
TXT	`postman-domain-verification=5110b8a9e3067319d1ada0a221c34a39d9a5fe4c6bfed2471...`
TXT	`stripe-verification=43BECBDFCBEFD6AAF80A1F376DBD60AE5A1BF2BE3D32FCF0EC1ED06C2...`
TXT	`v=spf1 redirect=backblaze.com.hosted.spf-report.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.17.5.3, 104.17.6.3
		IPv6 hints	2606:4700::6811:503, 2606:4700::6811:603
SOA	`dolly.ns.cloudflare.com`dns@cloudflare.com serial=2406033702

WOT: SAFE (92/100)
rank #4397 globally
rank #2203 in the tld
WOT: SAFE (92/100)
📈 Tranco rank: #4,202

Subdomains

ob.df1.backblaze.com

Same first word

df1.net

df1.com

df1.org

df1.be

df1.ru

df1.de

df1.jp

df1.nl

df1.mobi

Similar names

1fd.co

1fd.ru

1fd.net

d1f.de

1df.de

1df.biz

1df.net

fd1.ir

fd1.link

1fd.com

1fd.org

fd1.net

1fd.eu

f1d.team

f1d.com.cn

fd1.info

1df.com

d1f.top

fd1.com.br

d1f.org

d1f.com

f1d.com

fd1.me

fd1.com.tw

fd1.com

d1f.net

fd1.org

fd1.com.ar

DNS History

4 records (4 active, 0 former)

●NSns-1182.awsdns-19.org2026-03-30 → 2026-06-04 · 2 obs

● 2026-03-30 21:07:04
● 2026-06-04 16:11:52

●NSns-1935.awsdns-49.co.uk2026-03-30 → 2026-06-04 · 2 obs

● 2026-03-30 21:07:04
● 2026-06-04 16:11:52

●NSns-487.awsdns-60.com2026-03-30 → 2026-06-04 · 2 obs

● 2026-03-30 21:07:04
● 2026-06-04 16:11:52

●NSns-819.awsdns-38.net2026-03-30 → 2026-06-04 · 2 obs

● 2026-03-30 21:07:04
● 2026-06-04 16:11:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, b.gtld-servers.net...	-
backblaze.com	dolly.ns.cloudflare.com, kirk.ns.cloudflare.com	12 records
df1.backblaze.com	ns-1182.awsdns-19.org, ns-1935.awsdns-49.co.uk, ns-487.awsdns-60.com, ns-819.awsdns-38.net	-

✅ Authoritative Response

Server:205.251.195.51

NS records: ns-1182.awsdns-19.org, ns-1935.awsdns-49.co.uk, ns-487.awsdns-60.com, ns-819.awsdns-38.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for df1.backblaze.com (unsigned zone)

⏱️ Timing

Total: 470ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`ns-1182.awsdns-19.org, ns-1935.awsdns-49.co.uk...`
SOA	1	`ns-1935.awsdns-49.co.uk awsdns-hostmaste`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

ob.df1.backblaze.com is delegated beneath df1.backblaze.com.

Name Servers

Authority for df1.backblaze.com is delegated across 4 name servers: ns-487.awsdns-60.com, ns-819.awsdns-38.net, ns-1182.awsdns-19.org and ns-1935.awsdns-49.co.uk.

There is at least partial name server overlap between df1.backblaze.com and other domains — okj.com, m3.to, shadowgroup.net and two more among them.

All four hostnames — ns-487.awsdns-60.com, ns-819.awsdns-38.net, ns-1182.awsdns-19.org and ns-1935.awsdns-49.co.uk — resolve to two IP numbers apiece: ns-487.awsdns-60.com to 205.251.193.231 and 2600:9000:5301:e700::1; ns-819.awsdns-38.net to 205.251.195.51 and 2600:9000:5303:3300::1; ns-1182.awsdns-19.org to 205.251.196.158 and 2600:9000:5304:9e00::1; ns-1935.awsdns-49.co.uk to 205.251.199.143 and 2600:9000:5307:8f00::1.

df1.backblaze.com - robtex.com