We’re powered by seriously big data

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.

3600
Servers
701
K
CPU cores
5
PB
RAM
33
PB
HDD
509
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

14.8B

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

16.2B

Sökord

1.4BUnited States
687mnUnited Kingdom
610mnIndia
532mnBrazil
513mnRussian Federation
465mnGermany
444mnCanada
394mnFrance
379mnIndonesia
344mnJapan
342mnAustralia
309mnSpain
308mnPhilippines
304mnMexico
303mnItaly
300mnTurkey
296mnVietnam
253mnPoland
246mnUkraine
243mnKorea
241mnNetherlands
223mnArgentina
207mnMalaysia
205mnThailand
197mnTaiwan
188mnColombia
184mnPakistan
174mnEgypt
166mnSingapore
163mnBangladesh
162mnSouth Africa
151mnSweden
150mnSwitzerland
150mnUnited Arab Emirates
140mnBelgium
124mnPeru
123mnSaudi Arabia
122mnRomania
121mnIreland
116mnChile
115mnAustria
113mnMorocco
111mnIran
110mnNew Zealand
109mnPortugal
105mnCzech Republic
103mnAlgeria
99mnNorway

1.4BUnited States
687mnUnited Kingdom
610mnIndia
532mnBrazil
513mnRussian Federation
465mnGermany
444mnCanada
394mnFrance
379mnIndonesia
344mnJapan
342mnAustralia
309mnSpain
308mnPhilippines
304mnMexico
303mnItaly
300mnTurkey
296mnVietnam
253mnPoland
246mnUkraine
243mnKorea
241mnNetherlands
223mnArgentina
207mnMalaysia
205mnThailand
197mnTaiwan
188mnColombia
184mnPakistan
174mnEgypt
166mnSingapore
163mnBangladesh
162mnSouth Africa
151mnSweden

1.4BUnited States
687mnUnited Kingdom
610mnIndia
532mnBrazil
513mnRussian Federation
465mnGermany
444mnCanada
394mnFrance
379mnIndonesia
344mnJapan
342mnAustralia
309mnSpain
308mnPhilippines
304mnMexico
303mnItaly
300mnTurkey


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
634
M
Sökord
169mnUnited States
32mnIndia
28mnJapan
26mnGermany
26mnFrance
25mnUnited Kingdom
22mnSpain
22mnCanada
22mnBrazil
19mnAustralia
17mnItaly
17mnRussian Federation
15mnIndonesia
14mnNetherlands
13mnTurkey
13mnMexico
11mnPoland
7.1mnVietnam
7.1mnThailand
6.5mnUkraine
6.5mnColombia
6.3mnArgentina
6.1mnPhilippines
5.5mnSweden
4.5mnTaiwan
3.3mnMalaysia
3.3mnNorway
3.3mnAustria
3.3mnDenmark
3.1mnChile
3.0mnSouth Africa
2.9mnSaudi Arabia
2.9mnNew Zealand
2.7mnCzech Republic
2.6mnPeru
2.6mnEgypt
2.6mnBelgium
2.5mnPakistan
2.3mnGreece
2.2mnKorea
2.2mnHong Kong
2.2mnFinland
2.2mnRomania
2.1mnHungary
2.1mnUnited Arab Emirates
2.1mnPortugal
2.1mnSwitzerland
2.0mnSingapore

169mnUnited States
32mnIndia
28mnJapan
26mnGermany
26mnFrance
25mnUnited Kingdom
22mnSpain
22mnCanada
22mnBrazil
19mnAustralia
17mnItaly
17mnRussian Federation
15mnIndonesia
14mnNetherlands
13mnTurkey
13mnMexico
11mnPoland
7.1mnVietnam
7.1mnThailand
6.5mnUkraine
6.5mnColombia
6.3mnArgentina
6.1mnPhilippines
5.5mnSweden
4.5mnTaiwan
3.3mnMalaysia
3.3mnNorway
3.3mnAustria
3.3mnDenmark
3.1mnChile
3.0mnSouth Africa
2.9mnSaudi Arabia

169mnUnited States
32mnIndia
28mnJapan
26mnGermany
26mnFrance
25mnUnited Kingdom
22mnSpain
22mnCanada
22mnBrazil
19mnAustralia
17mnItaly
17mnRussian Federation
15mnIndonesia
14mnNetherlands
13mnTurkey
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
332.2
B
Domains (post-vetting)
206
M
Interna länkar
22.7
T
Språk
Extra verktyg och funktioner
Produkt
Företag
Resurser
Social

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