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.

2500 Servers

200K CPU cores
1PB+ RAM
50PB 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

420 million pages
Total content index size

8.6 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.

11.7 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

11.7 billion keywords

4 B United States
638 M Brazil
426 M France
376 M United Kingdom
248 M Germany
233 M Spain
220 M Poland
207 M Italy
177 M Mexico
165 M Canada
162 M Russian Federation
161 M Japan
156 M Argentina
148 M India
126 M Colombia
118 M Australia
98 M Ukraine
75 M Indonesia
74 M Chile
73 M Turkey
65 M Czechia
65 M Netherlands
63 M Philippines
58 M Venezuela
57 M Belgium
57 M Taiwan
55 M Peru
48 M Greece
48 M Hungary
43 M Ecuador
39 M Finland
39 M Romania
38 M Thailand
36 M Portugal
36 M Sweden
34 M Malaysia
33 M Pakistan
33 M Egypt
33 M Vietnam
31 M South Africa
28 M Austria
28 M Korea
27 M Switzerland
27 M Norway
26 M Algeria
26 M Morocco
24 M New Zealand
24 M Denmark
24 M Serbia
23 M Slovakia
21 M Bulgaria
21 M Saudi Arabia
20 M Israel
19 M Hong Kong
18 M Croatia
18 M Ireland
18 M Bolivia
17 M Uruguay
17 M Singapore
16 M Belarus
14 M Dominican Republic
14 M Costa Rica
14 M Tunisia
13 M Kazakhstan
11 M Lithuania
11 M Slovenia
11 M Guatemala
10 M United Arab Emirates
10 M Bangladesh
9.6 M Sri Lanka
8.6 M Nigeria
8.5 M Panama
8 M El Salvador
7.9 M Bosnia & Herzegovina
7.9 M Latvia
7.8 M Paraguay
7.5 M Estonia
6.1 M Honduras
6 M Moldova
5.3 M Kenya
4.7 M Azerbaijan
4.6 M Puerto Rico
4.2 M Trinidad And Tobago
4 M Jordan
3.8 M Armenia
3.8 M Mauritius
3.6 M Reunion
3.5 M Jamaica
3.5 M North Macedonia
3.4 M Nicaragua
3.2 M Georgia
3 M Iraq
2.9 M Ghana
2.4 M Palestinian Territory
2.3 M Malta
2.3 M Lebanon
2.3 M Cyprus
2.3 M Nepal
2.3 M Albania
2.2 M Qatar
1.9 M Kuwait
1.9 M Luxembourg
1.9 M Madagascar
1.9 M Côte d'Ivoire
1.8 M Oman
1.8 M Cameroon
1.6 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 Cambodia
1.3 M Zimbabwe
1.3 M Bahrain
1.3 M Yemen
1.2 M Tanzania
1.1 M Kyrgyzstan
979 K Libya
975 K Mozambique
945 K New Caledonia
922 K Mongolia
878 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
383 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
219 K Burkina Faso
198 K Myanmar
194 K Aruba
178 K Saint Vincent And Grenadines
176 K Grenada
167 K Togo
159 K Tajikistan
150 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
36 K Uganda
30 K Equatorial Guinea
30 K Syrian Arab Republic
27 K Uzbekistan
22 K China
21 K Sudan
12 K Cuba
9 K Macao
6.1 K Somalia
5.8 K Turkmenistan
4.3 K Papua New Guinea
3.3 K Jersey
3 K Sierra Leone
2.9 K Liberia
2.7 K Isle Of Man
2.7 K Lesotho
2.1 K Swaziland
1.6 K Guernsey
1.5 K Gambia
1.2 K Liechtenstein
1.1 K Bermuda
1 K Burundi
925 Timor-Leste
855 Greenland
848 Chad
585 Guinea-Bissau
464 Aland Islands
405 San Marino
391 Dominica
389 Northern Mariana Islands
350 Turks And Caicos Islands
290 Virgin Islands, British
264 Central African Republic
257 Samoa
248 Solomon Islands
216 American Samoa
213 Vanuatu
137 Saint Martin
133 Tonga
117 Comoros
114 Sao Tome And Principe
81 Micronesia, Federated States Of
79 Saint Barthelemy
78 Anguilla
57 Saint Helena
55 Eritrea
46 Palau
44 Cook Islands
39 Marshall Islands
24 Svalbard And Jan Mayen
19 Montserrat
19 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.

514 million keywords. 186 countries

194 M United States
28 M Japan
21 M United Kingdom
20 M India
19 M Germany
16 M Canada
16 M Australia
15 M France
13 M Italy
11 M Russian Federation
11 M Turkey
11 M Brazil
11 M Indonesia
9.9 M Spain
8.9 M Mexico
7.4 M Poland
6.3 M Netherlands
5.7 M Vietnam
5 M Ukraine
4.8 M Thailand
4.4 M Argentina
3.7 M Sweden
3.3 M Colombia
3.2 M Taiwan
2.8 M Philippines
2.4 M Austria
2.3 M Denmark
2.2 M Chile
2.1 M Belgium
2 M Malaysia
2 M Israel
1.9 M Egypt
1.8 M Singapore
1.8 M Czechia
1.7 M Peru
1.7 M Hong Kong
1.7 M Greece
1.7 M Pakistan
1.6 M South Africa
1.6 M Norway
1.6 M Romania
1.6 M Korea
1.5 M Saudi Arabia
1.5 M Hungary
1.4 M Switzerland
1.4 M Venezuela
1.3 M Finland
1.3 M New Zealand
1.2 M Portugal
1.2 M Algeria
985 K Ecuador
948 K Morocco
878 K Ireland
846 K Bulgaria
815 K United Arab Emirates
738 K Slovakia
730 K Serbia
623 K Kazakhstan
607 K Croatia
571 K Belarus
552 K Bangladesh
515 K Nigeria
455 K Sri Lanka
407 K Lithuania
378 K Tunisia
373 K Bolivia
372 K Costa Rica
366 K Dominican Republic
349 K Uruguay
340 K Guatemala
331 K Kenya
319 K Slovenia
312 K Azerbaijan
301 K Iraq
246 K Jordan
232 K Bosnia & Herzegovina
223 K Latvia
210 K Puerto Rico
205 K Estonia
204 K Panama
202 K El Salvador
193 K Paraguay
175 K Ghana
170 K Georgia
168 K Moldova
147 K Armenia
141 K Honduras
128 K Qatar
128 K Kuwait
126 K Lebanon
122 K Palestinian Territory
122 K Cyprus
113 K Jamaica
112 K North Macedonia
110 K Trinidad And Tobago
109 K Nepal
105 K Nicaragua
99 K Côte d'Ivoire
92 K Oman
92 K Tanzania
88 K Albania
85 K Cambodia
84 K Mauritius
81 K Bahrain
78 K Cameroon
76 K Senegal
73 K Kyrgyzstan
68 K Malta
64 K Luxembourg
63 K Angola
56 K Libya
50 K Mozambique
49 K Iceland
47 K Mongolia
47 K Zimbabwe
45 K Guadeloupe
44 K Montenegro
44 K Myanmar
44 K Ethiopia
34 K Madagascar
29 K Haiti
29 K Zambia
28 K Namibia
23 K Brunei Darussalam
22 K Laos
21 K Afghanistan
21 K Congo, Democratic Republic
21 K Burkina Faso
21 K Fiji
20 K Bahamas
18 K Suriname
18 K Guyana
18 K Tajikistan
17 K Maldives
16 K Botswana
16 K Gabon
15 K Uganda
14 K Rwanda
11 K Belize
11 K Congo
11 K Benin
10 K Mali
9.8 K Uzbekistan
9.3 K Cape Verde
8.6 K Togo
8.6 K China
7.8 K Bhutan
7.3 K Saint Vincent And Grenadines
6.7 K Niger
6.7 K Malawi
6.3 K Andorra
5.6 K Antigua And Barbuda
5.2 K Djibouti
4.9 K Virgin Islands, U.S.
4.6 K Cuba
3.8 K Seychelles
3.8 K Gibraltar
2.1 K Somalia
2 K Turkmenistan
1.5 K Papua New Guinea
1.1 K Jersey
1 K Sierra Leone
884 Isle Of Man
694 Lesotho
550 Guernsey
446 Gambia
389 Liechtenstein
289 Greenland
241 Chad
229 Burundi
224 Timor-Leste
135 San Marino
116 Dominica
104 Central African Republic
85 Virgin Islands, British
67 Solomon Islands
66 American Samoa
57 Samoa
45 Vanuatu
44 Sao Tome And Principe
25 Tonga
22 Micronesia, Federated States Of
19 Anguilla
19 Cook Islands
10 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