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.

2400 Servers

200K CPU cores
900TB RAM
30PB HDD
90PB 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
73 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
47 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
32 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
1.5 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
979 K Libya
974 K Mozambique
945 K New Caledonia
922 K Mongolia
877 K Ethiopia
734 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
382 K Congo, Democratic Republic
358 K Afghanistan
354 K Maldives
334 K Suriname
318 K Cape Verde
309 K Guam
305 K Mayotte
280 K Rwanda
277 K Laos
274 K Saint Lucia
251 K Antigua And Barbuda
244 K Benin
225 K Andorra
194 K Aruba
194 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 Bhutan
123 K Seychelles
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
33 K Uganda
30 K Equatorial Guinea
27 K Syrian Arab Republic
25 K Uzbekistan
23 K Myanmar
21 K China
19 K Sudan
11 K Cuba
8.4 K Macao
5.6 K Somalia
5.3 K Turkmenistan
3.9 K Papua New Guinea
3 K Jersey
2.8 K Sierra Leone
2.6 K Liberia
2.5 K Isle Of Man
2.5 K Lesotho
1.9 K Swaziland
1.4 K Guernsey
1.4 K Gambia
1.1 K Liechtenstein
1 K Bermuda
951 Burundi
863 Timor-Leste
784 Chad
748 Greenland
545 Guinea-Bissau
410 Aland Islands
366 Northern Mariana Islands
353 San Marino
344 Dominica
323 Turks And Caicos Islands
267 Virgin Islands, British
238 Samoa
221 Solomon Islands
205 Central African Republic
203 Vanuatu
194 American Samoa
124 Saint Martin
121 Tonga
108 Comoros
98 Sao Tome And Principe
79 Micronesia, Federated States Of
73 Saint Barthelemy
71 Anguilla
53 Saint Helena
50 Eritrea
44 Cook Islands
44 Palau
36 Marshall Islands
21 Svalbard And Jan Mayen
18 Montserrat
16 Saint Pierre And Miquelon
13 Falkland Islands (Malvinas)

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.

459 million keywords. 155 countries

160 M United States
27 M Japan
20 M United Kingdom
18 M Germany
17 M India
16 M Australia
15 M Canada
15 M France
12 M Italy
11 M Russian Federation
11 M Turkey
10 M Brazil
9.4 M Spain
9.3 M Indonesia
8.3 M Mexico
7.1 M Poland
6 M Netherlands
5.3 M Vietnam
4.7 M Ukraine
4.6 M Thailand
4 M Argentina
3.5 M Sweden
3 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
1.6 M Peru
1.6 M Czechia
1.6 M Singapore
1.6 M Greece
1.6 M Hong Kong
1.5 M Norway
1.5 M Korea
1.4 M Romania
1.4 M Pakistan
1.4 M Hungary
1.4 M Venezuela
1.3 M Saudi Arabia
1.3 M South Africa
1.2 M New Zealand
1.2 M Finland
1.2 M Portugal
1.1 M Switzerland
1.1 M Algeria
924 K Morocco
918 K Ecuador
797 K Bulgaria
740 K Ireland
705 K Serbia
680 K Slovakia
602 K United Arab Emirates
576 K Kazakhstan
571 K Croatia
516 K Belarus
429 K Bangladesh
404 K Sri Lanka
384 K Lithuania
372 K Dominican Republic
369 K Tunisia
368 K Nigeria
350 K Uruguay
338 K Bolivia
337 K Costa Rica
315 K Slovenia
302 K Iraq
295 K Guatemala
285 K Azerbaijan
257 K Kenya
235 K Bosnia & Herzegovina
218 K Latvia
214 K Jordan
213 K Puerto Rico
209 K Panama
196 K Estonia
185 K El Salvador
181 K Paraguay
172 K Georgia
170 K Moldova
148 K Armenia
143 K Honduras
133 K Ghana
130 K Qatar
129 K Kuwait
128 K Lebanon
123 K Palestinian Territory
115 K Jamaica
111 K Trinidad And Tobago
110 K Nepal
104 K North Macedonia
98 K Nicaragua
93 K Tanzania
93 K Oman
91 K Cyprus
89 K Albania
86 K Mauritius
79 K Côte d'Ivoire
73 K Kyrgyzstan
65 K Luxembourg
65 K Malta
63 K Senegal
61 K Cambodia
60 K Cameroon
58 K Bahrain
57 K Libya
51 K Angola
50 K Iceland
50 K Mozambique
48 K Zimbabwe
48 K Mongolia
46 K Guadeloupe
45 K Montenegro
44 K Ethiopia
35 K Madagascar
30 K Haiti
30 K Zambia
29 K Namibia
24 K Brunei Darussalam
22 K Laos
21 K Afghanistan
21 K Fiji
21 K Bahamas
20 K Congo, Democratic Republic
18 K Suriname
18 K Guyana
18 K Tajikistan
17 K Maldives
16 K Botswana
16 K Gabon
14 K Rwanda
13 K Uganda
13 K Burkina Faso
12 K Belize
11 K Congo
11 K Benin
10 K Mali
9.4 K Cape Verde
9.2 K Uzbekistan
8.9 K Myanmar
8.7 K Togo
7.8 K Bhutan
7.4 K Saint Vincent And Grenadines
7.2 K China
6.7 K Niger
6.6 K Malawi
6.4 K Andorra
5.6 K Antigua And Barbuda
5.2 K Djibouti
4.9 K Virgin Islands, U.S.
4 K Cuba
3.9 K Seychelles
3.8 K Gibraltar
2 K Somalia
1.8 K Turkmenistan
1.3 K Papua New Guinea
1.1 K Jersey
990 Sierra Leone
867 Isle Of Man
707 Lesotho
548 Guernsey
436 Gambia
372 Liechtenstein
269 Greenland
231 Burundi
231 Timor-Leste
226 Chad
129 San Marino
117 Dominica
85 Virgin Islands, British
75 Samoa
71 American Samoa
64 Solomon Islands
58 Central African Republic
54 Vanuatu
37 Sao Tome And Principe
27 Tonga
23 Micronesia, Federated States Of
21 Anguilla
19 Cook Islands
8 Saint Helena
3 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