Ahrefs by
the numbers

Ahrefs collects, processes, and stores large amounts of data for search marketing professionals.

Similar to search engines, we crawl the entire web 24/7 and store petabytes (1PB = 1000TB) of information about live websites – like how they link to each other and what keywords they rank for in search results.

We're also really proud of our backend infrastructure. Since no existing solution could keep up with the volume of data we operate, most of our software infrastructure was built in-house.

3400

Servers

618

K

CPU cores

4

PB

RAM

33

PB

HDD

404

PB

SSD


$900

mn

The amount we’d have to spend on the cloud in 3 years without our own infrastructure.

Watch reel

Most active web crawler in the SEO industry

AhrefsBot is the most active web crawler in the “Search Engine Optimization” category on Cloudflare Radar. It’s also the 3rd most active web crawler in the world.

Every minute, we crawl

There are

5

M

170

T

Sidor

Rows in our key-value database

/

Rank

Bot

Owner

Category

1

GoogleBot

Google

Search Engine Crawler

2

BingBot

Microsoft

Search Engine Crawler

3

DataDog Synthetic Bot

DataDog

Monitoring & Analytics

4

AhrefsBot

Ahrefs

Search Engine Optimization

5

Qualys

Qualys

Search Engine Crawler

6

YandexBot

Yandex

Search Engine Crawler

7

PetalBot

Huawei

Search Engine Crawler

8

Google AdsBot

Google

SAdvertising & Marketing

9

Google Image Proxy

Google

Page Preview

10

Google Images

Google

Search Engine Crawler

Bots ranked by number of requests. Data supplied as of April, 2023


Content index

Our content index powers Content Explorer, which is basically a content search engine.

Every 24 hours, we discover

10

M

New pages

Every 24 hours, we update metrics for

300

M

Sidor

Total content index size

14.0B

Sidor


Keyword index

This powers Keywords Explorer, our keyword research tool for finding what your prospective customers are searching for online.

216

Platser

Total keyword index size

20.4B

Sökord

4.3BUnited States
862mnBrazil
662mnUnited Kingdom
606mnIndia
582mnFrance
547mnRussian Federation
505mnGermany
443mnCanada
396mnSpain
377mnIndonesia
365mnItaly
351mnPoland
348mnMexico
333mnJapan
325mnAustralia
309mnPhilippines
302mnArgentina
301mnTurkey
289mnVietnam
275mnUkraine
244mnColombia
239mnNetherlands
230mnKorea
214mnMalaysia
211mnThailand
206mnTaiwan
194mnPakistan
175mnEgypt
161mnBangladesh
161mnSouth Africa
157mnBelgium
155mnSweden
151mnSingapore
146mnChile
145mnSwitzerland
145mnUnited Arab Emirates
143mnPeru
138mnCzech Republic
129mnRomania
127mnIran
124mnSaudi Arabia
119mnIreland
117mnAlgeria
116mnMorocco
116mnAustria
115mnPortugal
109mnVenezuela
108mnGreece

4.3BUnited States
862mnBrazil
662mnUnited Kingdom
606mnIndia
582mnFrance
547mnRussian Federation
505mnGermany
443mnCanada
396mnSpain
377mnIndonesia
365mnItaly
351mnPoland
348mnMexico
333mnJapan
325mnAustralia
309mnPhilippines
302mnArgentina
301mnTurkey
289mnVietnam
275mnUkraine
244mnColombia
239mnNetherlands
230mnKorea
214mnMalaysia
211mnThailand
206mnTaiwan
194mnPakistan
175mnEgypt
161mnBangladesh
161mnSouth Africa
157mnBelgium
155mnSweden

4.3BUnited States
862mnBrazil
662mnUnited Kingdom
606mnIndia
582mnFrance
547mnRussian Federation
505mnGermany
443mnCanada
396mnSpain
377mnIndonesia
365mnItaly
351mnPoland
348mnMexico
333mnJapan
325mnAustralia
309mnPhilippines


Organic search traffic index

Our database of search queries and the amount of search traffic they send to top-ranking pages. It powers search traffic estimations in Site Explorer.

189

Platser

651

M

Sökord

171mnUnited States
33mnIndia
28mnJapan
27mnGermany
26mnFrance
25mnUnited Kingdom
23mnSpain
23mnCanada
22mnBrazil
20mnAustralia
18mnItaly
18mnRussian Federation
16mnIndonesia
14mnNetherlands
14mnTurkey
13mnMexico
11mnPoland
7.5mnVietnam
7.3mnThailand
7.0mnUkraine
6.4mnColombia
6.4mnArgentina
6.0mnPhilippines
5.8mnSweden
4.8mnTaiwan
3.5mnAustria
3.4mnMalaysia
3.4mnNorway
3.3mnDenmark
3.1mnChile
3.1mnSaudi Arabia
3.1mnSouth Africa
3.0mnNew Zealand
2.7mnCzech Republic
2.7mnEgypt
2.7mnBelgium
2.6mnPeru
2.5mnPakistan
2.4mnGreece
2.4mnHong Kong
2.3mnRomania
2.3mnFinland
2.2mnHungary
2.2mnKorea
2.1mnSwitzerland
2.1mnPortugal
2.1mnIsrael
2.1mnUnited Arab Emirates

171mnUnited States
33mnIndia
28mnJapan
27mnGermany
26mnFrance
25mnUnited Kingdom
23mnSpain
23mnCanada
22mnBrazil
20mnAustralia
18mnItaly
18mnRussian Federation
16mnIndonesia
14mnNetherlands
14mnTurkey
13mnMexico
11mnPoland
7.5mnVietnam
7.3mnThailand
7.0mnUkraine
6.4mnColombia
6.4mnArgentina
6.0mnPhilippines
5.8mnSweden
4.8mnTaiwan
3.5mnAustria
3.4mnMalaysia
3.4mnNorway
3.3mnDenmark
3.1mnChile
3.1mnSaudi Arabia
3.1mnSouth Africa

171mnUnited States
33mnIndia
28mnJapan
27mnGermany
26mnFrance
25mnUnited Kingdom
23mnSpain
23mnCanada
22mnBrazil
20mnAustralia
18mnItaly
18mnRussian Federation
16mnIndonesia
14mnNetherlands
14mnTurkey
13mnMexico


Länkindex

The world's largest index of live backlinks, updated with fresh data every 15–30 minutes. This index powers backlink data in Site Explorer, and is used to calculate our proprietary metrics: Ahrefs Rank, Domain Rating and URL Rating.

External backlinks history

35.0T

Records

Pages in index

350.2

B

Domains (post-vetting)

210

M

Interna länkar

24.2

T

Språk
Extra verktyg och funktioner
Produkt
Företag
Resurser
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