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.

4100
Servers
901
K
CPU cores
6
PB
RAM
33
PB
HDD
665
PB
SSD

$900
m
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
5
M
Sayfalar
There are
170
T
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
Sayfalar

Total content index size

15.3Milyar

Sayfalar


Keyword index

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

216
Konumlar

Total keyword index size

12.0Milyar

Filtered keywords

74.0Milyar

Keywords ever seen

1.1MilyarUnited States
455mUnited Kingdom
396mIndia
290mCanada
286mGermany
279mRussian Federation
254mBrazil
224mJapan
218mFrance
207mAustralia
182mIndonesia
172mPhilippines
171mSpain
167mMexico
155mItaly
148mTurkey
139mNetherlands
138mVietnam
125mPoland
125mKorea
114mArgentina
113mUkraine
109mMalaysia
97mColombia
96mTaiwan
88mThailand
87mPakistan
83mSouth Africa
82mSwitzerland
80mBelgium
78mEgypt
77mIran
75mSingapore
74mSweden
73mPeru
69mChile
68mAustria
68mUnited Arab Emirates
63mSaudi Arabia
61mBangladesh
60mIreland
57mRomania
54mNew Zealand
54mPortugal
50mHong Kong
48mMorocco
48mNorway
47mCzech Republic

1.1MilyarUnited States
455mUnited Kingdom
396mIndia
290mCanada
286mGermany
279mRussian Federation
254mBrazil
224mJapan
218mFrance
207mAustralia
182mIndonesia
172mPhilippines
171mSpain
167mMexico
155mItaly
148mTurkey
139mNetherlands
138mVietnam
125mPoland
125mKorea
114mArgentina
113mUkraine
109mMalaysia
97mColombia
96mTaiwan
88mThailand
87mPakistan
83mSouth Africa
82mSwitzerland
80mBelgium
78mEgypt
77mIran

1.1MilyarUnited States
455mUnited Kingdom
396mIndia
290mCanada
286mGermany
279mRussian Federation
254mBrazil
224mJapan
218mFrance
207mAustralia
182mIndonesia
172mPhilippines
171mSpain
167mMexico
155mItaly
148mTurkey


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
Konumlar
596
M
Anahtar kelimeler
159mUnited States
32mIndia
26mJapan
24mFrance
24mUnited Kingdom
22mBrazil
22mGermany
20mCanada
19mSpain
18mRussian Federation
17mAustralia
15mItaly
13mMexico
13mNetherlands
12mIndonesia
11mTurkey
9.4mPoland
6.9mThailand
6.8mColombia
6.6mPhilippines
6.5mArgentina
5.7mVietnam
4.7mUkraine
4.7mSweden
3.8mTaiwan
3.5mMalaysia
3.3mChile
3.1mSouth Africa
3.0mDenmark
3.0mNorway
2.9mPeru
2.7mSaudi Arabia
2.7mPakistan
2.7mEgypt
2.7mAustria
2.5mCzech Republic
2.5mNew Zealand
2.5mKorea
2.4mBelgium
2.2mUnited Arab Emirates
2.1mPortugal
2.0mRomania
1.9mFinland
1.9mHungary
1.9mSingapore
1.9mSwitzerland
1.9mGreece
1.8mHong Kong

159mUnited States
32mIndia
26mJapan
24mFrance
24mUnited Kingdom
22mBrazil
22mGermany
20mCanada
19mSpain
18mRussian Federation
17mAustralia
15mItaly
13mMexico
13mNetherlands
12mIndonesia
11mTurkey
9.4mPoland
6.9mThailand
6.8mColombia
6.6mPhilippines
6.5mArgentina
5.7mVietnam
4.7mUkraine
4.7mSweden
3.8mTaiwan
3.5mMalaysia
3.3mChile
3.1mSouth Africa
3.0mDenmark
3.0mNorway
2.9mPeru
2.7mSaudi Arabia

159mUnited States
32mIndia
26mJapan
24mFrance
24mUnited Kingdom
22mBrazil
22mGermany
20mCanada
19mSpain
18mRussian Federation
17mAustralia
15mItaly
13mMexico
13mNetherlands
12mIndonesia
11mTurkey


Backlink dizini

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

35.0Trilyon

Records

Dizindeki sayfalar
329.8
B
Domains (post-vetting)
206.8
M
Dahili bağlantılar
22.5
T

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