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.

3033 Servers

313K CPU cores
2.3PB RAM
50PB HDD
156PB 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

10 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.

20.8 billion keywords. 10 search engines. 243 countries.

Google

19 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

20.8 billion keywords

4.5 B United States
860 M Brazil
640 M United Kingdom
569 M France
508 M India
473 M Germany
413 M Canada
374 M Spain
360 M Russian Federation
347 M Mexico
337 M Italy
331 M Poland
322 M Japan
316 M Indonesia
292 M Australia
289 M Argentina
257 M Philippines
239 M Colombia
237 M Turkey
227 M Vietnam
213 M Ukraine
195 M Netherlands
192 M Thailand
191 M Malaysia
163 M Taiwan
156 M Korea
147 M Chile
144 M Pakistan
141 M Belgium
140 M Peru
131 M South Africa
126 M Sweden
123 M Egypt
120 M Switzerland
117 M Czechia
115 M Singapore
111 M United Arab Emirates
110 M Venezuela
108 M Ecuador
108 M Romania
105 M Saudi Arabia
101 M Austria
100 M Greece
99 M Bangladesh
95 M Morocco
94 M Portugal
94 M Algeria
93 M Hungary
91 M Ireland
83 M New Zealand
82 M Hong Kong
81 M Finland
78 M Norway
76 M Denmark
70 M Israel
69 M Serbia
65 M Nigeria
61 M Bulgaria
60 M Kazakhstan
60 M Dominican Republic
53 M Bolivia
53 M Slovakia
53 M Belarus
52 M Sri Lanka
52 M Iraq
48 M Tunisia
48 M Kenya
47 M Nepal
47 M Croatia
46 M Guatemala
45 M Costa Rica
40 M Lithuania
40 M Uruguay
37 M Panama
37 M Jordan
34 M Palestinian Territory
34 M Georgia
34 M Paraguay
33 M Qatar
32 M Lebanon
32 M Cambodia
32 M Slovenia
32 M Honduras
31 M Kuwait
31 M China
30 M Ghana
30 M Latvia
30 M El Salvador
30 M Puerto Rico
30 M Azerbaijan
28 M Bosnia & Herzegovina
25 M Moldova
24 M Estonia
24 M Oman
24 M Jamaica
24 M Trinidad And Tobago
23 M Uzbekistan
22 M Myanmar
21 M Cyprus
20 M Libya
19 M Albania
19 M Bahrain
19 M Armenia
19 M Nicaragua
18 M Ethiopia
18 M North Macedonia
18 M Syrian Arab Republic
18 M Luxembourg
17 M Yemen
16 M Sudan
16 M Uganda
15 M Tanzania
15 M Mongolia
15 M Mauritius
15 M Kyrgyzstan
13 M Malta
13 M Cuba
13 M Cameroon
13 M Zimbabwe
12 M Côte d'Ivoire
12 M Reunion
12 M Senegal
12 M Zambia
11 M Laos
11 M Afghanistan
9.7 M Angola
9.2 M Brunei Darussalam
8.9 M Montenegro
8.9 M Iceland
8.7 M Madagascar
8.2 M Mozambique
8 M Congo, Democratic Republic
7.9 M Maldives
7.9 M Bahamas
7.8 M Namibia
7.8 M Turkmenistan
7.7 M Haiti
7.1 M Botswana
6.4 M Guyana
6.1 M Macao
6.1 M Guadeloupe
6 M Somalia
5.6 M Martinique
5.6 M Belize
5.3 M Rwanda
5.2 M Suriname
5.1 M Tajikistan
4.9 M Benin
4.7 M Guam
4.7 M Togo
4.7 M Fiji
4.3 M Gabon
4.2 M Mali
4.2 M Malawi
4.1 M Mauritania
3.8 M Papua New Guinea
3.5 M Burkina Faso
3.5 M Bhutan
3.2 M Jersey
3.1 M Swaziland
3 M Saint Lucia
3 M New Caledonia
2.8 M Isle Of Man
2.8 M Niger
2.8 M Aruba
2.8 M Congo
2.8 M French Polynesia
2.7 M French Guiana
2.6 M Lesotho
2.6 M Andorra
2.6 M Antigua And Barbuda
2.6 M Guinea
2.5 M Sierra Leone
2.5 M Seychelles
2.4 M Cayman Islands
2.2 M Grenada
2.2 M Gambia
2.2 M Bermuda
2.2 M Cape Verde
2.1 M Liberia
2 M Virgin Islands, U.S.
2 M Guernsey
1.9 M Virgin Islands, British
1.8 M Saint Vincent And Grenadines
1.5 M Liechtenstein
1.5 M Timor-Leste
1.5 M Saint Kitts And Nevis
1.4 M Faroe Islands
1.4 M Chad
1.3 M Gibraltar
1.3 M Greenland
1.3 M Dominica
1.3 M Mayotte
1.3 M Djibouti
1.3 M Monaco
1.2 M Burundi
1.2 M Aland Islands
1.1 M Turks And Caicos Islands
892 K San Marino
874 K Equatorial Guinea
809 K Northern Mariana Islands
720 K Western Sahara
614 K Solomon Islands
564 K Samoa
557 K Vanuatu
535 K Sao Tome And Principe
530 K Comoros
512 K American Samoa
509 K Guinea-Bissau
483 K Saint Martin
475 K Anguilla
447 K Central African Republic
374 K Tonga
326 K Micronesia, Federated States Of
314 K Palau
270 K Saint Barthelemy
239 K Kiribati
236 K Cook Islands
222 K Marshall Islands
191 K Eritrea
128 K Svalbard And Jan Mayen
125 K Nauru
109 K Saint Pierre And Miquelon
93 K Montserrat
79 K Falkland Islands (Malvinas)
59 K Saint Helena
39 K British Indian Ocean Territory
37 K Wallis And Futuna
35 K Antarctica
27 K Tuvalu
25 K Norfolk Island
21 K Christmas Island
13 K Niue
3.9 K Tokelau
1.1 K United States Outlying Islands
12 Cocos (Keeling) Islands
8 South Georgia And Sandwich Isl.

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.

488 million keywords. 189 countries

145 M United States
30 M India
27 M Japan
20 M United Kingdom
19 M Germany
14 M France
14 M Indonesia
13 M Canada
12 M Australia
12 M Turkey
11 M Italy
11 M Brazil
9.9 M Mexico
9.6 M Spain
8.8 M Russian Federation
8.8 M Poland
6.7 M Thailand
6.6 M Vietnam
6.3 M Netherlands
5.4 M Philippines
5.2 M Ukraine
4.7 M Argentina
4.1 M Colombia
3.7 M Sweden
3.4 M Taiwan
3 M Malaysia
2.7 M South Africa
2.7 M Saudi Arabia
2.7 M Chile
2.4 M Egypt
2.4 M Peru
2.3 M Belgium
2.2 M Pakistan
2.1 M Denmark
2.1 M Austria
2 M Greece
2 M Romania
1.9 M Czechia
1.8 M Israel
1.8 M Switzerland
1.8 M Korea
1.8 M Singapore
1.7 M Hungary
1.6 M Hong Kong
1.6 M Finland
1.5 M Norway
1.5 M Portugal
1.4 M Nigeria
1.3 M Ireland
1.3 M United Arab Emirates
1.3 M New Zealand
1.2 M Bangladesh
1.1 M Ecuador
1.1 M Venezuela
1 M Algeria
927 K Kazakhstan
921 K Morocco
893 K Slovakia
864 K Bulgaria
804 K Serbia
671 K Croatia
663 K Belarus
619 K Kenya
596 K Sri Lanka
587 K Iraq
518 K Guatemala
501 K Bolivia
484 K Dominican Republic
460 K Lithuania
430 K Costa Rica
428 K Nepal
389 K Uruguay
386 K Tunisia
386 K Jordan
369 K Ghana
320 K Azerbaijan
312 K Panama
304 K Slovenia
299 K Kuwait
297 K Paraguay
285 K Uzbekistan
279 K Puerto Rico
248 K El Salvador
245 K Honduras
238 K Bosnia & Herzegovina
227 K Lebanon
226 K Qatar
220 K Estonia
218 K Latvia
204 K Oman
196 K Georgia
188 K Tanzania
174 K Moldova
168 K Uganda
166 K Kyrgyzstan
156 K Cyprus
156 K China
150 K Nicaragua
147 K Myanmar
147 K Jamaica
145 K Côte d'Ivoire
133 K Armenia
128 K Zambia
128 K Libya
126 K Cambodia
125 K Cameroon
121 K Senegal
120 K Bahrain
120 K Palestinian Territory
119 K Ethiopia
116 K Trinidad And Tobago
114 K North Macedonia
109 K Congo, Democratic Republic
106 K Albania
99 K Luxembourg
89 K Mauritius
89 K Zimbabwe
85 K Malta
84 K Angola
75 K Mozambique
69 K Mongolia
63 K Montenegro
61 K Laos
58 K Turkmenistan
57 K Iceland
57 K Haiti
54 K Afghanistan
49 K Namibia
45 K Guadeloupe
44 K Cuba
43 K Tajikistan
43 K Burkina Faso
40 K Mali
39 K Brunei Darussalam
38 K Benin
36 K Madagascar
36 K Somalia
35 K Botswana
35 K Maldives
31 K Rwanda
28 K Bahamas
27 K Guyana
26 K Fiji
26 K Gabon
24 K Togo
22 K Suriname
20 K Papua New Guinea
19 K Bhutan
19 K Malawi
18 K Belize
16 K Congo
15 K Niger
15 K Sierra Leone
12 K Lesotho
9.8 K Jersey
9.7 K Gibraltar
8.5 K Cape Verde
7.8 K Chad
7.7 K Isle Of Man
7.6 K Andorra
6.7 K Gambia
6.7 K Virgin Islands, U.S.
5.5 K Antigua And Barbuda
5.4 K Timor-Leste
5.3 K Saint Vincent And Grenadines
4.6 K Guernsey
4.5 K Seychelles
4.3 K Burundi
3.9 K Djibouti
2.7 K Greenland
2.7 K Central African Republic
2.4 K Liechtenstein
1.9 K Virgin Islands, British
1.8 K San Marino
1.5 K Dominica
1.4 K Sao Tome And Principe
483 Solomon Islands
415 American Samoa
412 Vanuatu
371 Samoa
278 Anguilla
204 Tonga
166 Cook Islands
161 Micronesia, Federated States Of
107 Kiribati
100 Nauru
39 Montserrat
18 Saint Helena
11 Niue

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