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.

8.9 billion keywords. 10 search engines. 228 countries.

Google

7.4 B
YouTube

832 M
Yahoo

171 M
Amazon

159 M
Bing

117 M
Yandex

96 M
Naver

18 M
Seznam

8.4 M
Baidu

3.5 M
Daum

1.8 M

8.9 billion keywords

3.8 B United States
405 M Brazil
313 M United Kingdom
272 M France
159 M Germany
150 M Spain
135 M Poland
133 M Italy
126 M Canada
110 M Mexico
108 M Japan
99 M Argentina
99 M Russian Federation
98 M Australia
89 M India
75 M Colombia
61 M Ukraine
58 M Venezuela
46 M Turkey
45 M Chile
45 M Indonesia
44 M Netherlands
43 M Czechia
39 M Philippines
37 M Taiwan
35 M Belgium
33 M Peru
31 M Vietnam
30 M South Africa
30 M Hungary
30 M Greece
25 M Ecuador
24 M Finland
24 M Thailand
23 M Sweden
23 M Romania
23 M Portugal
22 M Norway
20 M Malaysia
20 M Egypt
19 M New Zealand
19 M Pakistan
18 M Korea
17 M Austria
17 M Uruguay
16 M Switzerland
16 M Denmark
15 M Morocco
15 M Algeria
14 M Serbia
14 M Slovakia
14 M Israel
13 M Bulgaria
13 M Hong Kong
11 M Saudi Arabia
11 M Ireland
11 M Croatia
11 M Singapore
11 M Bolivia
9.6 M Belarus
7.9 M Costa Rica
7.9 M Dominican Republic
7.7 M Kazakhstan
7.7 M Tunisia
6.9 M Lithuania
6.7 M Guatemala
6.5 M Slovenia
6.3 M Bangladesh
6 M Sri Lanka
5.8 M United Arab Emirates
5.3 M Nigeria
5.2 M Panama
4.8 M Estonia
4.7 M El Salvador
4.5 M Latvia
4.5 M Paraguay
4.5 M Bosnia & Herzegovina
3.8 M Honduras
3.5 M Kenya
3.3 M Moldova
2.8 M Trinidad And Tobago
2.6 M Puerto Rico
2.4 M Azerbaijan
2.4 M Jamaica
2.3 M Mauritius
2.3 M Jordan
2 M Reunion
2 M North Macedonia
2 M Armenia
1.9 M Georgia
1.9 M Nicaragua
1.8 M Ghana
1.6 M Nepal
1.6 M Iraq
1.5 M Malta
1.4 M Lebanon
1.4 M Cyprus
1.3 M Albania
1.3 M Qatar
1.3 M Zimbabwe
1.3 M Yemen
1.2 M Palestinian Territory
1.2 M Luxembourg
1.2 M Kuwait
1.1 M Madagascar
1.1 M Côte d'Ivoire
1.1 M Cameroon
1 M Oman
922 K Senegal
902 K Angola
891 K Iceland
808 K Cambodia
781 K Guadeloupe
759 K Martinique
756 K Montenegro
743 K Tanzania
733 K Zambia
720 K Bahrain
642 K Kyrgyzstan
599 K Libya
596 K Mongolia
567 K Ethiopia
559 K Mozambique
535 K New Caledonia
453 K Namibia
452 K Fiji
410 K Haiti
405 K Brunei Darussalam
361 K French Polynesia
357 K Guyana
336 K French Guiana
326 K Belize
322 K Botswana
305 K Mayotte
295 K Bahamas
252 K Gabon
226 K Congo, Democratic Republic
212 K Suriname
209 K Maldives
208 K Afghanistan
199 K Guam
196 K Rwanda
186 K Cape Verde
178 K Saint Vincent And Grenadines
176 K Saint Lucia
168 K Laos
155 K Antigua And Barbuda
147 K Benin
139 K Iran, Islamic Republic Of
129 K Andorra
119 K Aruba
111 K Grenada
110 K Burkina Faso
108 K Togo
96 K Virgin Islands, U.S.
93 K Malawi
86 K Tajikistan
79 K Congo
77 K Bhutan
75 K Seychelles
73 K Cayman Islands
72 K Djibouti
71 K Mali
69 K Monaco
64 K Saint Kitts And Nevis
63 K Mauritania
59 K Faroe Islands
50 K Gibraltar
50 K Guinea
34 K Niger
19 K Equatorial Guinea
17 K Uzbekistan
2.5 K Syrian Arab Republic
2.5 K Uganda
1.6 K Sudan
1.3 K Myanmar
893 Cuba
635 China
486 Macao
389 Somalia
372 Turkmenistan
295 Papua New Guinea
248 Liberia
190 Jersey
189 Samoa
186 Virgin Islands, British
165 Vanuatu
157 Isle Of Man
148 Swaziland
128 Sierra Leone
125 Lesotho
79 Guernsey
76 Gambia
73 Burundi
73 Bermuda
67 Chad
65 Liechtenstein
58 Timor-Leste
34 Guinea-Bissau
29 Northern Mariana Islands
28 Aland Islands
21 Greenland
19 Solomon Islands
17 Turks And Caicos Islands
15 Dominica
14 American Samoa
14 Central African Republic
14 San Marino
12 Saint Martin
8 Saint Barthelemy
8 Tonga
7 Comoros
7 Palau
6 Sao Tome And Principe
4 Marshall Islands
3 Cook Islands
3 Micronesia, Federated States Of
3 Saint Helena
2 Anguilla
1 Eritrea
1 Falkland Islands (Malvinas)
1 Montserrat
1 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.

951 million keywords. 155 countries

316 M United States
52 M Japan
42 M United Kingdom
38 M Germany
36 M France
34 M India
32 M Australia
31 M Canada
27 M Italy
25 M Russian Federation
25 M Brazil
22 M Spain
21 M Turkey
19 M Mexico
18 M Indonesia
18 M Poland
12 M Netherlands
11 M Ukraine
10 M Vietnam
9 M Argentina
8.6 M Thailand
7.2 M Sweden
6.8 M Colombia
5.9 M Taiwan
5.2 M Philippines
4.7 M Austria
4.5 M Denmark
4.3 M Chile
4 M Israel
3.9 M Egypt
3.8 M Belgium
3.7 M Peru
3.7 M Czechia
3.6 M Greece
3.4 M Malaysia
3.3 M Singapore
3.3 M Pakistan
3.3 M Hungary
3.1 M Norway
3.1 M Romania
3.1 M Hong Kong
3.1 M Korea
2.8 M Venezuela
2.7 M Algeria
2.7 M Finland
2.6 M Portugal
2.5 M Saudi Arabia
2.5 M South Africa
2.5 M New Zealand
2.3 M Switzerland
2.1 M Ecuador
2.1 M Morocco
1.8 M Bulgaria
1.6 M Serbia
1.5 M Slovakia
1.5 M Ireland
1.3 M Croatia
1.2 M Kazakhstan
1.1 M United Arab Emirates
1.1 M Belarus
928 K Bangladesh
898 K Sri Lanka
838 K Lithuania
832 K Tunisia
831 K Dominican Republic
777 K Bolivia
757 K Nigeria
742 K Costa Rica
733 K Uruguay
703 K Slovenia
661 K Guatemala
583 K Azerbaijan
575 K Iraq
519 K Kenya
519 K Bosnia & Herzegovina
483 K Latvia
465 K Panama
446 K Estonia
442 K Puerto Rico
436 K Jordan
420 K El Salvador
397 K Paraguay
382 K Moldova
352 K Georgia
322 K Honduras
315 K Armenia
280 K Ghana
257 K Lebanon
257 K Qatar
256 K Kuwait
255 K Jamaica
252 K Trinidad And Tobago
249 K Palestinian Territory
233 K North Macedonia
217 K Nepal
211 K Nicaragua
197 K Mauritius
186 K Tanzania
183 K Cyprus
183 K Oman
181 K Albania
171 K Côte d'Ivoire
142 K Malta
136 K Senegal
136 K Luxembourg
134 K Cameroon
133 K Kyrgyzstan
125 K Cambodia
117 K Bahrain
111 K Libya
108 K Angola
106 K Iceland
103 K Mozambique
100 K Guadeloupe
97 K Montenegro
96 K Zimbabwe
94 K Mongolia
86 K Ethiopia
79 K Madagascar
60 K Haiti
59 K Namibia
58 K Zambia
48 K Brunei Darussalam
45 K Fiji
42 K Bahamas
40 K Afghanistan
39 K Laos
38 K Guyana
37 K Congo, Democratic Republic
36 K Suriname
34 K Botswana
34 K Maldives
33 K Gabon
33 K Tajikistan
28 K Rwanda
26 K Belize
26 K Burkina Faso
23 K Congo
22 K Benin
20 K Cape Verde
19 K Mali
17 K Togo
15 K Bhutan
15 K Saint Vincent And Grenadines
13 K Malawi
13 K Andorra
13 K Niger
12 K Antigua And Barbuda
11 K Djibouti
9.2 K Virgin Islands, U.S.
7.8 K Seychelles
7.3 K Gibraltar
2 K Uzbekistan
1.2 K Uganda
620 Myanmar
386 Cuba
186 China
152 Somalia
138 Turkmenistan
128 Papua New Guinea
43 Lesotho
42 Jersey
38 Sierra Leone
33 Guernsey
18 Liechtenstein
15 Isle Of Man
14 Chad
14 Timor-Leste
11 Gambia
4 Burundi
4 Virgin Islands, British
3 Samoa
2 Vanuatu

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