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
926 K Iran, Islamic Republic Of
922 K Mongolia
876 K Ethiopia
733 K Zambia
706 K Namibia
668 K Haiti
652 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
23 K Uganda
21 K Syrian Arab Republic
18 K Uzbekistan
17 K Myanmar
15 K Sudan
11 K China
7 K Cuba
5.8 K Macao
3.9 K Somalia
3.8 K Turkmenistan
2.9 K Papua New Guinea
2.1 K Jersey
2 K Sierra Leone
1.9 K Lesotho
1.7 K Liberia
1.7 K Isle Of Man
1.3 K Swaziland
1 K Gambia
966 Guernsey
715 Bermuda
696 Liechtenstein
673 Burundi
651 Timor-Leste
558 Chad
429 Greenland
389 Guinea-Bissau
281 Aland Islands
260 Dominica
255 Northern Mariana Islands
225 Turks And Caicos Islands
216 Solomon Islands
197 San Marino
195 Samoa
192 Virgin Islands, British
166 Vanuatu
153 American Samoa
103 Tonga
101 Central African Republic
96 Saint Martin
69 Sao Tome And Principe
66 Micronesia, Federated States Of
62 Anguilla
59 Comoros
56 Saint Barthelemy
41 Eritrea
38 Cook Islands
36 Palau
35 Saint Helena
31 Marshall Islands
18 Montserrat
16 Svalbard And Jan Mayen
13 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.

464 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
12 M Italy
11 M Russian Federation
11 M Brazil
11 M Turkey
9.6 M Spain
9.4 M Indonesia
8.5 M Mexico
7.3 M Poland
6.1 M Netherlands
5.4 M Vietnam
4.7 M Ukraine
4.7 M Thailand
4.1 M Argentina
3.5 M Sweden
3.1 M Colombia
2.9 M Taiwan
2.4 M Philippines
2.3 M Austria
2.2 M Denmark
1.9 M Israel
1.9 M Chile
1.8 M Belgium
1.7 M Egypt
1.7 M Malaysia
1.7 M Peru
1.6 M Czechia
1.6 M Greece
1.6 M Singapore
1.6 M Hong Kong
1.5 M Norway
1.5 M Korea
1.5 M Romania
1.5 M Pakistan
1.5 M Hungary
1.4 M Venezuela
1.3 M South Africa
1.3 M Saudi Arabia
1.2 M Finland
1.2 M New Zealand
1.2 M Portugal
1.2 M Switzerland
1.1 M Algeria
943 K Ecuador
941 K Morocco
817 K Bulgaria
757 K Ireland
720 K Serbia
694 K Slovakia
611 K United Arab Emirates
586 K Croatia
586 K Kazakhstan
526 K Belarus
436 K Bangladesh
412 K Sri Lanka
393 K Lithuania
383 K Dominican Republic
377 K Tunisia
373 K Nigeria
361 K Uruguay
349 K Bolivia
347 K Costa Rica
323 K Slovenia
304 K Guatemala
303 K Iraq
289 K Azerbaijan
261 K Kenya
241 K Bosnia & Herzegovina
223 K Latvia
217 K Jordan
217 K Puerto Rico
216 K Panama
202 K Estonia
189 K El Salvador
186 K Paraguay
176 K Georgia
174 K Moldova
151 K Armenia
148 K Honduras
135 K Ghana
132 K Qatar
130 K Lebanon
130 K Kuwait
125 K Palestinian Territory
119 K Jamaica
115 K Trinidad And Tobago
111 K Nepal
107 K North Macedonia
100 K Nicaragua
95 K Oman
95 K Tanzania
93 K Cyprus
91 K Albania
90 K Mauritius
81 K Côte d'Ivoire
73 K Kyrgyzstan
67 K Malta
67 K Luxembourg
64 K Senegal
63 K Cambodia
61 K Cameroon
60 K Bahrain
57 K Libya
53 K Angola
51 K Iceland
50 K Mozambique
49 K Zimbabwe
49 K Mongolia
46 K Guadeloupe
46 K Montenegro
44 K Ethiopia
36 K Madagascar
30 K Haiti
30 K Zambia
29 K Namibia
24 K Brunei Darussalam
22 K Laos
22 K Afghanistan
21 K Fiji
21 K Bahamas
20 K Congo, Democratic Republic
18 K Suriname
18 K Guyana
17 K Tajikistan
17 K Maldives
16 K Botswana
16 K Gabon
14 K Rwanda
13 K Burkina Faso
12 K Belize
12 K Congo
12 K Benin
11 K Uganda
10 K Mali
9.7 K Cape Verde
8.9 K Togo
8 K Bhutan
7.9 K Uzbekistan
7.7 K Myanmar
7.5 K Saint Vincent And Grenadines
6.7 K Niger
6.7 K Malawi
6.6 K Andorra
5.8 K China
5.8 K Antigua And Barbuda
5.3 K Djibouti
4.9 K Virgin Islands, U.S.
4 K Seychelles
3.9 K Gibraltar
3.2 K Cuba
1.7 K Somalia
1.6 K Turkmenistan
1.2 K Papua New Guinea
934 Jersey
874 Sierra Leone
759 Isle Of Man
605 Lesotho
461 Guernsey
386 Gambia
304 Liechtenstein
226 Greenland
202 Timor-Leste
200 Burundi
198 Chad
104 Dominica
102 San Marino
77 Virgin Islands, British
74 Samoa
64 Solomon Islands
62 American Samoa
56 Vanuatu
34 Sao Tome And Principe
31 Tonga
25 Central African Republic
23 Anguilla
23 Cook Islands
23 Micronesia, Federated States Of
8 Saint Helena
1 Montserrat

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