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.

2600 Servers

205K CPU cores
1.5PB RAM
50PB HDD
130PB 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.

12 billion keywords. 10 search engines. 229 countries.

Google

9.8 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

12 billion keywords

4 B United States
649 M Brazil
430 M France
386 M United Kingdom
257 M Germany
237 M Spain
223 M Poland
211 M Italy
184 M Mexico
174 M Japan
172 M Canada
172 M Russian Federation
171 M India
161 M Argentina
129 M Colombia
124 M Australia
102 M Ukraine
87 M Indonesia
79 M Turkey
76 M Chile
72 M Philippines
69 M Netherlands
66 M Czechia
62 M Taiwan
59 M Venezuela
59 M Belgium
57 M Peru
49 M Greece
48 M Hungary
47 M Thailand
44 M Ecuador
41 M Vietnam
41 M Malaysia
41 M Romania
40 M Finland
38 M Sweden
37 M Portugal
37 M Pakistan
36 M Egypt
34 M South Africa
33 M Korea
30 M Austria
29 M Switzerland
28 M Algeria
28 M Norway
27 M Morocco
26 M New Zealand
25 M Denmark
24 M Serbia
24 M Saudi Arabia
23 M Slovakia
22 M Bulgaria
21 M Israel
20 M Hong Kong
19 M Ireland
19 M Singapore
19 M Croatia
18 M Bolivia
17 M Uruguay
17 M Belarus
15 M Dominican Republic
14 M Kazakhstan
14 M Costa Rica
14 M Tunisia
13 M United Arab Emirates
13 M Bangladesh
12 M Lithuania
11 M Guatemala
11 M Slovenia
11 M Nigeria
11 M Sri Lanka
8.9 M Panama
8.3 M El Salvador
8.3 M Bosnia & Herzegovina
8.2 M Latvia
8.2 M Paraguay
7.7 M Estonia
6.6 M Honduras
6.3 M Kenya
6.2 M Moldova
5 M Azerbaijan
5 M Puerto Rico
4.8 M Jordan
4.4 M Iraq
4.4 M Trinidad And Tobago
4 M Armenia
3.9 M Mauritius
3.7 M Reunion
3.7 M Jamaica
3.7 M Nicaragua
3.6 M Nepal
3.6 M North Macedonia
3.6 M Ghana
3.5 M Georgia
3 M Palestinian Territory
2.8 M Lebanon
2.7 M Qatar
2.7 M Kuwait
2.6 M Cyprus
2.5 M Albania
2.4 M Malta
2.2 M Oman
2.1 M Luxembourg
2.1 M Côte d'Ivoire
2 M Cameroon
1.9 M Madagascar
1.8 M Cambodia
1.8 M Senegal
1.6 M Yemen
1.6 M Angola
1.6 M Bahrain
1.6 M Tanzania
1.5 M Montenegro
1.5 M Iceland
1.5 M Zimbabwe
1.5 M Guadeloupe
1.4 M Kyrgyzstan
1.4 M Martinique
1.4 M Libya
1.2 M Ethiopia
1.1 M Mozambique
1.1 M Mongolia
967 K Zambia
960 K New Caledonia
814 K Namibia
803 K Uzbekistan
787 K China
785 K Haiti
758 K Brunei Darussalam
708 K Fiji
678 K Myanmar
651 K Guyana
635 K French Guiana
631 K French Polynesia
595 K Botswana
563 K Congo, Democratic Republic
544 K Uganda
541 K Belize
527 K Sudan
522 K Bahamas
519 K Afghanistan
479 K Gabon
457 K Maldives
441 K Laos
396 K Suriname
350 K Rwanda
350 K Guam
341 K Benin
330 K Cape Verde
313 K Mayotte
292 K Saint Lucia
291 K Burkina Faso
265 K Antigua And Barbuda
262 K Tajikistan
244 K Andorra
238 K Togo
227 K Turkmenistan
218 K Aruba
210 K Malawi
209 K Mali
188 K Saint Vincent And Grenadines
187 K Congo
185 K Bhutan
185 K Grenada
162 K Mauritania
159 K Guinea
136 K Djibouti
136 K Seychelles
135 K Cayman Islands
131 K Somalia
128 K Monaco
119 K Faroe Islands
118 K Saint Kitts And Nevis
114 K Virgin Islands, U.S.
110 K Macao
101 K Niger
94 K Papua New Guinea
87 K Gibraltar
64 K Swaziland
60 K Lesotho
59 K Sierra Leone
55 K Jersey
47 K Isle Of Man
42 K Liberia
36 K Equatorial Guinea
32 K Gambia
30 K Syrian Arab Republic
28 K Guernsey
27 K Greenland
27 K Bermuda
24 K Timor-Leste
24 K Chad
17 K Burundi
17 K Liechtenstein
12 K Virgin Islands, British
12 K Cuba
9.1 K San Marino
9 K Dominica
8.9 K Northern Mariana Islands
8.8 K Turks And Caicos Islands
8.7 K Guinea-Bissau
7.2 K Central African Republic
464 Aland Islands
257 Samoa
248 Solomon Islands
216 American Samoa
214 Vanuatu
137 Saint Martin
131 Tonga
117 Comoros
114 Sao Tome And Principe
81 Micronesia, Federated States Of
79 Saint Barthelemy
78 Anguilla
56 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.

590 million keywords. 186 countries

206 M United States
33 M Japan
26 M United Kingdom
26 M India
23 M Germany
19 M France
18 M Canada
18 M Australia
15 M Italy
13 M Brazil
13 M Russian Federation
13 M Turkey
12 M Indonesia
12 M Spain
11 M Mexico
9.8 M Poland
7.7 M Netherlands
6.9 M Vietnam
5.9 M Thailand
5.8 M Ukraine
5.3 M Argentina
4.2 M Sweden
4.2 M Colombia
4 M Philippines
3.3 M Taiwan
2.7 M Austria
2.7 M Chile
2.7 M Malaysia
2.6 M Denmark
2.6 M Belgium
2.3 M Egypt
2.3 M Israel
2.2 M South Africa
2.2 M Peru
2.1 M Pakistan
2.1 M Singapore
2.1 M Czechia
2.1 M Saudi Arabia
2.1 M Greece
2 M Romania
1.9 M Korea
1.9 M Norway
1.8 M Hungary
1.8 M Switzerland
1.7 M Hong Kong
1.6 M Finland
1.5 M Portugal
1.5 M Venezuela
1.5 M New Zealand
1.3 M Algeria
1.2 M Ecuador
1.2 M Ireland
1.1 M Morocco
1.1 M United Arab Emirates
984 K Bulgaria
917 K Slovakia
871 K Serbia
812 K Nigeria
798 K Kazakhstan
793 K Bangladesh
727 K Croatia
693 K Belarus
579 K Sri Lanka
492 K Lithuania
481 K Bolivia
479 K Dominican Republic
459 K Costa Rica
458 K Guatemala
455 K Kenya
451 K Tunisia
440 K Iraq
425 K Uruguay
378 K Slovenia
366 K Azerbaijan
320 K Jordan
278 K Panama
278 K Bosnia & Herzegovina
277 K Puerto Rico
265 K Latvia
258 K Paraguay
258 K Ghana
255 K El Salvador
248 K Estonia
231 K Nepal
210 K Georgia
204 K Kuwait
203 K Moldova
202 K Honduras
182 K Qatar
181 K Lebanon
171 K Armenia
153 K Cyprus
148 K Jamaica
146 K Palestinian Territory
140 K Oman
140 K Nicaragua
135 K Trinidad And Tobago
135 K North Macedonia
132 K Tanzania
127 K Côte d'Ivoire
113 K Cambodia
112 K Kyrgyzstan
111 K Albania
107 K Bahrain
104 K Cameroon
103 K Mauritius
101 K Senegal
100 K Uzbekistan
89 K Luxembourg
88 K Libya
86 K Malta
83 K Myanmar
78 K Angola
76 K Ethiopia
69 K Zimbabwe
66 K Mozambique
64 K Mongolia
62 K Iceland
62 K Uganda
58 K Montenegro
58 K Zambia
54 K Guadeloupe
52 K China
43 K Haiti
42 K Congo, Democratic Republic
41 K Madagascar
40 K Namibia
36 K Laos
35 K Afghanistan
33 K Brunei Darussalam
28 K Burkina Faso
28 K Tajikistan
27 K Bahamas
27 K Fiji
26 K Maldives
25 K Botswana
25 K Guyana
23 K Suriname
22 K Rwanda
21 K Benin
21 K Gabon
20 K Mali
20 K Turkmenistan
16 K Belize
15 K Togo
14 K Congo
14 K Somalia
13 K Bhutan
11 K Malawi
11 K Cape Verde
10 K Niger
8.2 K Saint Vincent And Grenadines
8.1 K Andorra
7.8 K Papua New Guinea
6.8 K Antigua And Barbuda
6.6 K Virgin Islands, U.S.
5.9 K Djibouti
5.1 K Sierra Leone
4.7 K Seychelles
4.6 K Cuba
4.5 K Lesotho
4.3 K Gibraltar
4.1 K Jersey
3.2 K Isle Of Man
2.5 K Gambia
2.2 K Chad
1.9 K Guernsey
1.8 K Timor-Leste
1.4 K Burundi
1.1 K Greenland
1 K Liechtenstein
595 San Marino
544 Central African Republic
539 Dominica
471 Virgin Islands, British
65 American Samoa
65 Solomon Islands
57 Samoa
46 Vanuatu
44 Sao Tome And Principe
24 Tonga
21 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