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
63 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
9.8 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
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
194 K Aruba
194 K Burkina Faso
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
35 K Uganda
30 K Equatorial Guinea
29 K Syrian Arab Republic
26 K Uzbekistan
24 K Myanmar
22 K China
20 K Sudan
11 K Cuba
8.8 K Macao
5.9 K Somalia
5.7 K Turkmenistan
4.2 K Papua New Guinea
3.2 K Jersey
2.9 K Sierra Leone
2.8 K Liberia
2.6 K Lesotho
2.5 K Isle Of Man
2 K Swaziland
1.5 K Guernsey
1.5 K Gambia
1.1 K Bermuda
1.1 K Liechtenstein
999 Burundi
900 Timor-Leste
832 Greenland
823 Chad
570 Guinea-Bissau
448 Aland Islands
387 San Marino
384 Northern Mariana Islands
376 Dominica
343 Turks And Caicos Islands
284 Virgin Islands, British
250 Samoa
239 Central African Republic
238 Solomon Islands
212 American Samoa
208 Vanuatu
135 Saint Martin
127 Tonga
113 Comoros
111 Sao Tome And Principe
83 Micronesia, Federated States Of
76 Saint Barthelemy
74 Anguilla
56 Saint Helena
54 Eritrea
48 Palau
44 Cook Islands
38 Marshall Islands
24 Svalbard And Jan Mayen
19 Montserrat
18 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.

457 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 Indonesia
9.3 M Spain
8.3 M Mexico
7 M Poland
6 M Netherlands
5.3 M Vietnam
4.6 M Thailand
4.6 M Ukraine
3.9 M Argentina
3.5 M Sweden
2.9 M Colombia
2.9 M Taiwan
2.3 M Philippines
2.3 M Austria
2.2 M Denmark
1.9 M Israel
1.8 M Chile
1.8 M Belgium
1.7 M Egypt
1.7 M Malaysia
1.6 M Peru
1.6 M Singapore
1.6 M Czechia
1.6 M Greece
1.5 M Hong Kong
1.5 M Norway
1.5 M Korea
1.4 M Romania
1.4 M Pakistan
1.4 M Hungary
1.3 M Venezuela
1.3 M Saudi Arabia
1.2 M South Africa
1.2 M New Zealand
1.2 M Finland
1.1 M Portugal
1.1 M Switzerland
1.1 M Algeria
917 K Morocco
900 K Ecuador
791 K Bulgaria
735 K Ireland
701 K Serbia
673 K Slovakia
599 K United Arab Emirates
572 K Kazakhstan
565 K Croatia
513 K Belarus
427 K Bangladesh
401 K Sri Lanka
380 K Lithuania
368 K Dominican Republic
367 K Nigeria
365 K Tunisia
338 K Uruguay
333 K Costa Rica
332 K Bolivia
312 K Slovenia
301 K Iraq
292 K Guatemala
282 K Azerbaijan
257 K Kenya
233 K Bosnia & Herzegovina
216 K Latvia
213 K Jordan
212 K Puerto Rico
205 K Panama
195 K Estonia
181 K El Salvador
175 K Paraguay
171 K Georgia
169 K Moldova
147 K Armenia
141 K Honduras
132 K Ghana
129 K Qatar
128 K Kuwait
127 K Lebanon
123 K Palestinian Territory
114 K Jamaica
110 K Trinidad And Tobago
109 K Nepal
103 K North Macedonia
97 K Nicaragua
93 K Tanzania
93 K Oman
90 K Cyprus
88 K Albania
85 K Mauritius
79 K Côte d'Ivoire
73 K Kyrgyzstan
65 K Luxembourg
64 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
47 K Mongolia
47 K Zimbabwe
45 K Guadeloupe
45 K Montenegro
44 K Ethiopia
34 K Madagascar
30 K Haiti
29 K Zambia
28 K Namibia
24 K Brunei Darussalam
22 K Laos
21 K Afghanistan
21 K Congo, Democratic Republic
21 K Fiji
20 K Bahamas
18 K Suriname
18 K Guyana
18 K Tajikistan
17 K Maldives
16 K Botswana
16 K Gabon
14 K Uganda
14 K Rwanda
13 K Burkina Faso
12 K Belize
11 K Congo
11 K Benin
10 K Mali
9.5 K Uzbekistan
9.4 K Cape Verde
9.1 K Myanmar
8.7 K Togo
8 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.
4.3 K Cuba
3.8 K Seychelles
3.8 K Gibraltar
2.1 K Somalia
1.9 K Turkmenistan
1.4 K Papua New Guinea
1.1 K Jersey
1 K Sierra Leone
867 Isle Of Man
704 Lesotho
549 Guernsey
443 Gambia
372 Liechtenstein
279 Greenland
237 Burundi
232 Timor-Leste
231 Chad
131 San Marino
114 Dominica
88 Virgin Islands, British
86 Central African Republic
71 American Samoa
67 Solomon Islands
64 Samoa
49 Vanuatu
43 Sao Tome And Principe
25 Tonga
24 Micronesia, Federated States Of
19 Anguilla
18 Cook Islands
9 Saint Helena
2 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