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
757
K
CPU cores
5
PB
RAM
33
PB
HDD
534
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

14.9Milyar

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

1.2MilyarUnited States
616mUnited Kingdom
581mIndia
515mRussian Federation
435mCanada
420mGermany
396mBrazil
347mIndonesia
325mFrance
322mAustralia
303mPhilippines
299mJapan
273mSpain
273mMexico
272mTurkey
270mVietnam
251mItaly
233mKorea
230mNetherlands
227mUkraine
212mPoland
208mArgentina
202mMalaysia
191mThailand
181mPakistan
181mTaiwan
179mColombia
165mEgypt
161mSingapore
160mBangladesh
158mSouth Africa
147mSwitzerland
146mUnited Arab Emirates
144mSweden
138mBelgium
123mPeru
120mSaudi Arabia
118mIreland
117mIran
114mChile
114mRomania
111mAustria
109mMorocco
107mNew Zealand
106mPortugal
99mAlgeria
97mCzech Republic
94mHong Kong

1.2MilyarUnited States
616mUnited Kingdom
581mIndia
515mRussian Federation
435mCanada
420mGermany
396mBrazil
347mIndonesia
325mFrance
322mAustralia
303mPhilippines
299mJapan
273mSpain
273mMexico
272mTurkey
270mVietnam
251mItaly
233mKorea
230mNetherlands
227mUkraine
212mPoland
208mArgentina
202mMalaysia
191mThailand
181mPakistan
181mTaiwan
179mColombia
165mEgypt
161mSingapore
160mBangladesh
158mSouth Africa
147mSwitzerland

1.2MilyarUnited States
616mUnited Kingdom
581mIndia
515mRussian Federation
435mCanada
420mGermany
396mBrazil
347mIndonesia
325mFrance
322mAustralia
303mPhilippines
299mJapan
273mSpain
273mMexico
272mTurkey
270mVietnam


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
536
M
Anahtar kelimeler
139mUnited States
29mIndia
25mJapan
23mUnited Kingdom
22mGermany
21mFrance
19mBrazil
17mCanada
16mSpain
16mRussian Federation
15mAustralia
14mItaly
13mIndonesia
12mNetherlands
11mMexico
11mTurkey
9.6mPoland
6.5mThailand
6.0mVietnam
5.7mPhilippines
5.4mColombia
5.2mArgentina
5.0mUkraine
4.8mSweden
4.0mTaiwan
3.0mMalaysia
2.9mDenmark
2.8mSouth Africa
2.8mChile
2.7mNorway
2.7mAustria
2.6mSaudi Arabia
2.4mPeru
2.3mEgypt
2.3mCzech Republic
2.3mBelgium
2.3mPakistan
2.2mNew Zealand
2.0mGreece
2.0mFinland
1.9mRomania
1.9mUnited Arab Emirates
1.9mKorea
1.9mHong Kong
1.9mHungary
1.9mPortugal
1.8mSwitzerland
1.8mSingapore

139mUnited States
29mIndia
25mJapan
23mUnited Kingdom
22mGermany
21mFrance
19mBrazil
17mCanada
16mSpain
16mRussian Federation
15mAustralia
14mItaly
13mIndonesia
12mNetherlands
11mMexico
11mTurkey
9.6mPoland
6.5mThailand
6.0mVietnam
5.7mPhilippines
5.4mColombia
5.2mArgentina
5.0mUkraine
4.8mSweden
4.0mTaiwan
3.0mMalaysia
2.9mDenmark
2.8mSouth Africa
2.8mChile
2.7mNorway
2.7mAustria
2.6mSaudi Arabia

139mUnited States
29mIndia
25mJapan
23mUnited Kingdom
22mGermany
21mFrance
19mBrazil
17mCanada
16mSpain
16mRussian Federation
15mAustralia
14mItaly
13mIndonesia
12mNetherlands
11mMexico
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
373.2
B
Domains (post-vetting)
213.4
M
Dahili bağlantılar
25.3
T

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