Ahrefs by the numbers

The Ahrefs team takes great pride in collecting, processing and storing large amounts of data for search marketing professionals.

We crawl the entire web 24/7 (much like search engines do) storing petabytes of information about live websites — how they link to each other and what keywords they rank for in search results.

We process large amounts of clickstream data to maintain the world's largest third-party database of search queries, with estimated monthly search volume and advanced keyword research metrics.

We're proud of our backend infrastructure. All existing solutions couldn't keep up with the volume of data that we operate, so we had to custom build the larger part of our software infrastructure in-house.

2000 Servers

100K CPU cores
600TB RAM
30PB HDD
50PB SSD

Content index

Our content index is basically a mini search engine. You can search for any word and we'll return all the pages mentioning that word with our useful SEO metrics attached to them.

Every 24 hours we discover

30 million new pages
Every 24 hours we update metrics for

350 million pages
Total content index size

5.02 billion pages

Keyword index

Keyword index is a huge database of search queries (across 10 different search engines) that you can browse and research what your prospective customers are looking for online.

11.6 billion keywords. 10 search engines. 229 countries.

Google

9.5 B
YouTube

1.3 B
Yahoo

261 M
Amazon

232 M
Yandex

170 M
Bing

157 M
Naver

33 M
Seznam

14 M
Baidu

5.7 M
Daum

3.3 M

11.6 billion keywords

4 B United States
636 M Brazil
424 M France
372 M United Kingdom
245 M Germany
231 M Spain
219 M Poland
206 M Italy
176 M Mexico
162 M Canada
161 M Russian Federation
155 M Argentina
149 M Japan
140 M India
125 M Colombia
115 M Australia
97 M Ukraine
74 M Chile
72 M Indonesia
71 M Turkey
65 M Czechia
64 M Netherlands
62 M Philippines
58 M Venezuela
57 M Belgium
56 M Taiwan
54 M Peru
48 M Greece
48 M Hungary
43 M Ecuador
39 M Finland
39 M Romania
36 M Thailand
36 M Portugal
35 M Sweden
33 M Malaysia
33 M Pakistan
33 M Egypt
31 M Vietnam
30 M South Africa
28 M Austria
27 M Korea
26 M Norway
26 M Algeria
26 M Switzerland
25 M Morocco
24 M New Zealand
24 M Serbia
23 M Denmark
23 M Slovakia
21 M Bulgaria
20 M Saudi Arabia
19 M Israel
18 M Croatia
18 M Hong Kong
18 M Bolivia
17 M Ireland
17 M Uruguay
16 M Singapore
16 M Belarus
14 M Dominican Republic
14 M Costa Rica
13 M Tunisia
13 M Kazakhstan
11 M Lithuania
11 M Slovenia
10 M Guatemala
9.7 M Bangladesh
9.6 M United Arab Emirates
9.5 M Sri Lanka
8.5 M Panama
8.3 M Nigeria
7.9 M Bosnia & Herzegovina
7.9 M El Salvador
7.8 M Latvia
7.7 M Paraguay
7.5 M Estonia
6.1 M Honduras
6 M Moldova
5 M Kenya
4.6 M Azerbaijan
4.6 M Puerto Rico
4.2 M Trinidad And Tobago
3.9 M Jordan
3.8 M Armenia
3.8 M Mauritius
3.6 M Reunion
3.5 M Jamaica
3.4 M North Macedonia
3.4 M Nicaragua
3.2 M Georgia
3 M Iraq
2.8 M Ghana
2.4 M Palestinian Territory
2.3 M Malta
2.3 M Lebanon
2.3 M Nepal
2.3 M Albania
2.2 M Qatar
2.2 M Cyprus
1.9 M Kuwait
1.9 M Luxembourg
1.9 M Madagascar
1.8 M Côte d'Ivoire
1.8 M Oman
1.7 M Cameroon
1.5 M Senegal
1.4 M Angola
1.4 M Iceland
1.4 M Guadeloupe
1.4 M Montenegro
1.3 M Martinique
1.3 M Zimbabwe
1.3 M Yemen
1.3 M Cambodia
1.2 M Tanzania
1.2 M Bahrain
1.1 M Kyrgyzstan
978 K Libya
973 K Mozambique
945 K New Caledonia
922 K Mongolia
876 K Ethiopia
871 K Iran, Islamic Republic Of
733 K Zambia
706 K Namibia
668 K Haiti
653 K Brunei Darussalam
652 K Fiji
616 K French Guiana
612 K French Polynesia
594 K Guyana
508 K Belize
497 K Botswana
462 K Bahamas
431 K Gabon
379 K Congo, Democratic Republic
357 K Afghanistan
354 K Maldives
334 K Suriname
318 K Cape Verde
309 K Guam
305 K Mayotte
280 K Rwanda
276 K Laos
274 K Saint Lucia
251 K Antigua And Barbuda
244 K Benin
225 K Andorra
194 K Aruba
193 K Burkina Faso
178 K Saint Vincent And Grenadines
176 K Grenada
167 K Togo
159 K Tajikistan
149 K Malawi
141 K Congo
131 K Djibouti
123 K Seychelles
123 K Bhutan
122 K Mali
121 K Mauritania
118 K Cayman Islands
118 K Monaco
113 K Saint Kitts And Nevis
105 K Guinea
101 K Faroe Islands
96 K Virgin Islands, U.S.
81 K Gibraltar
63 K Niger
30 K Equatorial Guinea
22 K Uganda
20 K Syrian Arab Republic
18 K Uzbekistan
16 K Myanmar
14 K Sudan
11 K China
6.7 K Cuba
5.7 K Macao
3.7 K Somalia
3.6 K Turkmenistan
2.8 K Papua New Guinea
2 K Jersey
1.9 K Sierra Leone
1.8 K Lesotho
1.7 K Liberia
1.6 K Isle Of Man
1.2 K Swaziland
964 Gambia
926 Guernsey
685 Bermuda
666 Liechtenstein
632 Burundi
624 Timor-Leste
534 Chad
411 Greenland
372 Guinea-Bissau
268 Aland Islands
249 Northern Mariana Islands
241 Dominica
215 Turks And Caicos Islands
199 Solomon Islands
195 Samoa
192 Virgin Islands, British
191 San Marino
166 Vanuatu
150 American Samoa
101 Central African Republic
95 Saint Martin
93 Tonga
69 Sao Tome And Principe
65 Micronesia, Federated States Of
58 Comoros
57 Anguilla
55 Saint Barthelemy
38 Cook Islands
34 Eritrea
34 Saint Helena
31 Marshall Islands
31 Palau
18 Montserrat
16 Svalbard And Jan Mayen
12 Falkland Islands (Malvinas)
11 Saint Pierre And Miquelon

Search traffic index

Search Traffic index is a database of search queries that we use to approximate the search traffic that any website or URL has, and show you the actual keywords that it ranks for.

468 million keywords. 155 countries

161 M United States
27 M Japan
21 M United Kingdom
18 M Germany
18 M India
16 M Australia
15 M Canada
15 M France
13 M Italy
11 M Russian Federation
11 M Brazil
11 M Turkey
9.7 M Spain
9.5 M Indonesia
8.6 M Mexico
7.3 M Poland
6.2 M Netherlands
5.4 M Vietnam
4.8 M Ukraine
4.7 M Thailand
4.2 M Argentina
3.6 M Sweden
3.1 M Colombia
2.9 M Taiwan
2.4 M Philippines
2.3 M Austria
2.2 M Denmark
2 M Israel
1.9 M Chile
1.8 M Belgium
1.8 M Egypt
1.7 M Malaysia
1.7 M Peru
1.7 M Czechia
1.6 M Singapore
1.6 M Greece
1.6 M Norway
1.6 M Hong Kong
1.5 M Korea
1.5 M Romania
1.5 M Pakistan
1.5 M Hungary
1.4 M Venezuela
1.3 M Saudi Arabia
1.3 M South Africa
1.2 M Finland
1.2 M New Zealand
1.2 M Portugal
1.2 M Switzerland
1.1 M Algeria
953 K Ecuador
948 K Morocco
822 K Bulgaria
767 K Ireland
726 K Serbia
701 K Slovakia
621 K United Arab Emirates
594 K Kazakhstan
591 K Croatia
529 K Belarus
441 K Bangladesh
416 K Sri Lanka
396 K Lithuania
386 K Dominican Republic
380 K Tunisia
377 K Nigeria
362 K Uruguay
352 K Bolivia
350 K Costa Rica
326 K Slovenia
305 K Guatemala
304 K Iraq
293 K Azerbaijan
264 K Kenya
242 K Bosnia & Herzegovina
225 K Latvia
221 K Puerto Rico
220 K Jordan
218 K Panama
204 K Estonia
191 K El Salvador
188 K Paraguay
178 K Georgia
175 K Moldova
152 K Armenia
149 K Honduras
138 K Ghana
133 K Qatar
132 K Lebanon
131 K Kuwait
127 K Palestinian Territory
120 K Jamaica
116 K Trinidad And Tobago
112 K Nepal
108 K North Macedonia
101 K Nicaragua
96 K Oman
95 K Tanzania
94 K Cyprus
92 K Albania
90 K Mauritius
82 K Côte d'Ivoire
73 K Kyrgyzstan
68 K Luxembourg
68 K Malta
65 K Senegal
64 K Cambodia
62 K Cameroon
61 K Bahrain
58 K Libya
53 K Angola
52 K Iceland
51 K Mozambique
49 K Mongolia
49 K Zimbabwe
47 K Guadeloupe
46 K Montenegro
45 K Ethiopia
36 K Madagascar
31 K Haiti
30 K Zambia
29 K Namibia
25 K Brunei Darussalam
23 K Laos
22 K Afghanistan
22 K Fiji
21 K Bahamas
20 K Congo, Democratic Republic
19 K Suriname
18 K Guyana
18 K Maldives
17 K Tajikistan
17 K Botswana
16 K Gabon
15 K Rwanda
13 K Burkina Faso
12 K Belize
12 K Benin
12 K Congo
10 K Mali
10 K Uganda
9.8 K Cape Verde
9 K Togo
8 K Bhutan
7.5 K Saint Vincent And Grenadines
7.5 K Uzbekistan
7.2 K Myanmar
6.8 K Niger
6.7 K Malawi
6.6 K Andorra
5.8 K Antigua And Barbuda
5.6 K China
5.3 K Djibouti
5 K Virgin Islands, U.S.
4 K Seychelles
3.9 K Gibraltar
2.9 K Cuba
1.5 K Somalia
1.5 K Turkmenistan
1.1 K Papua New Guinea
895 Jersey
809 Sierra Leone
731 Isle Of Man
560 Lesotho
439 Guernsey
354 Gambia
290 Liechtenstein
209 Greenland
190 Timor-Leste
185 Chad
184 Burundi
94 Dominica
91 San Marino
72 Virgin Islands, British
72 Samoa
58 American Samoa
55 Solomon Islands
54 Vanuatu
33 Sao Tome And Principe
30 Tonga
23 Central African Republic
20 Micronesia, Federated States Of
19 Anguilla
19 Cook Islands
3 Saint Helena

Backlink index

Ahrefs boasts the world's largest index of live backlinks. We update it with fresh data every 15-30 minutes. We use backlink data to calculate our proprietary metrics: Ahrefs Rank, Domain Rating and URL Rating.

Domains (post-vetting)

Pages in index

Internal backlinks

External backlinks