Websites using IBM NS1 for DNS

1.08% delegate DNS to IBM NS1 249K of 23.15 million domains that returned NS records, DNS sweep of Sep 2026

High-authority sites

Ordered by Open Page Rank, the domain's authority score from the open web link graph.

#	Website	OPROpen Page Rank
1	jsdelivr.net	9.62
2	github.com	9.52
3	github.io	9.43
4	spotify.com	9.40
5	theguardian.com	9.23
6	wixsite.com	9.23
7	wix.com	9.22
8	ibm.com	9.13
9	bloomberg.com	9.12
10	businessinsider.com	9.11
11	cnbc.com	9.11
12	squarespace.com	9.11
13	etsy.com	9.09
14	yelp.com	9.09
15	editmysite.com	9.08
16	time.com	9.07
17	lnkd.in	9.05
18	msn.com	9.04
19	licdn.com	9.01
20	netlify.app	9.01
21	constantcontact.com	8.98
22	outbrain.com	8.97
23	ebay.com	8.95
24	economist.com	8.94
25	nvidia.com	8.89
26	box.com	8.88
27	tableau.com	8.82
28	zeit.de	8.81
29	emarketer.com	8.75
30	duckduckgo.com	8.74
31	monday.com	8.73
32	adsrvr.org	8.72
33	srf.ch	8.71
34	backlinko.com	8.68
35	timeanddate.com	8.67
36	myworkdayjobs.com	8.66
37	rs6.net	8.65
38	heroku.com	8.64
39	smashingmagazine.com	8.63
40	constantcontactpages.com	8.62
41	newrelic.com	8.62
42	rts.ch	8.59
43	ebay.de	8.58
44	salesforce-sites.com	8.58
45	cbslocal.com	8.57
46	ebay.co.uk	8.57
47	cbssports.com	8.55
48	insider.com	8.54
49	pubmatic.com	8.53
50	radio-canada.ca	8.53
51	ubereats.com	8.53
52	morningstar.com	8.52
53	webpagetest.org	8.52
54	pandora.com	8.50
55	taboola.com	8.50
56	wixmp.com	8.50
57	insiderintelligence.com	8.49
58	simonandschuster.com	8.45
59	businessweek.com	8.44
60	paylocity.com	8.43
61	disneyplus.com	8.42
62	blackbaud.com	8.40
63	nj.com	8.39
64	azcentral.com	8.38
65	freep.com	8.37
66	jaxa.jp	8.37
67	newsday.com	8.37
68	nyt.com	8.33
69	atom.io	8.32
70	expedia.com	8.32
71	mlive.com	8.32
72	vrbo.com	8.32
73	cleveland.com	8.31
74	eset.com	8.31
75	guim.co.uk	8.31
76	porsche.com	8.31
77	stackoverflow.co	8.31
78	bio.site	8.30
79	eslint.org	8.30
80	nordstrom.com	8.30
81	jnj.com	8.27
82	jsonline.com	8.27
83	airbnb.fr	8.26
84	squoosh.app	8.26
85	yelp.ca	8.26
86	carfax.com	8.25
87	cloudera.com	8.25
88	domaintools.com	8.25
89	grubhub.com	8.25
90	11ty.dev	8.24
91	hotels.com	8.24
92	wayfair.com	8.24
93	detroitnews.com	8.23
94	dispatch.com	8.23
95	opensource.com	8.23
96	citylab.com	8.21
97	ebay.com.au	8.21
98	lynda.com	8.19
99	chtbl.com	8.18
100	cygwin.com	8.17

See all dns providers and how they are measured.

Websites using IBM NS1 for DNS

High-authority sites

Look up any website for free