Join the 1500 companies using G2 Track to manage SaaS spend, usage, contracts & compliance.
Compare Google Tag Manager, SimilarWeb, Alexa Marketing Stack, and Ahrefs

Pricing

 
FREE
$0
per month
ADVANCED
$149
per month
Lite
$99
/ month
 
ENTERPRISE
Custom Plans
Standard
$179
/ month
 
Additional Solutions
Custom Plans
Advanced
$399
/ month
 
Agency
$999
/ month
 
Free Trial Unavailable
Free Trial Unavailable
Free Trial
Free Trial Unavailable
Google Tag Manager
Free Trial Unavailable
SimilarWeb
FREE
$0per month
ENTERPRISE
Custom Plans
Additional Solutions
Custom Plans
Free Trial Unavailable
Alexa Marketing Stack
ADVANCED
$149per month
Free Trial
Ahrefs
Lite
$99/ month
Standard
$179/ month
Advanced
$399/ month
Agency
$999/ month
Free Trial Unavailable

Ratings

Meets Requirements
Meets Requirements
9.2
7.7
7.0
9.0
Ease of Use
Ease of Use
7.7
8.7
8.1
8.7
Ease of Setup
Ease of Setup
7.8
9.2
8.3
9.1
Ease of Admin
Ease of Admin
8.2
9.7
8.3
9.0
Quality of Support
Quality of Support
6.7
7.7
6.7
8.5
Ease of Doing Business With
Ease of Doing Business With
8.0
8.3
7.7
8.8
Product Direction (% positive)
Product Direction (% positive)
8.7
7.8
6.4
8.6
Meets Requirements
Google Tag Manager
9.2
SimilarWeb
7.7
Alexa Marketing Stack
7.0
Ahrefs
9.0
Ease of Use
Google Tag Manager
7.7
SimilarWeb
8.7
Alexa Marketing Stack
8.1
Ahrefs
8.7
Ease of Setup
Google Tag Manager
7.8
SimilarWeb
9.2
Alexa Marketing Stack
8.3
Ahrefs
9.1
Ease of Admin
Google Tag Manager
8.2
SimilarWeb
9.7
Alexa Marketing Stack
8.3
Ahrefs
9.0
Quality of Support
Google Tag Manager
6.7
SimilarWeb
7.7
Alexa Marketing Stack
6.7
Ahrefs
8.5
Ease of Doing Business With
Google Tag Manager
8.0
SimilarWeb
8.3
Alexa Marketing Stack
7.7
Ahrefs
8.8
Product Direction (% positive)
Google Tag Manager
8.7
SimilarWeb
7.8
Alexa Marketing Stack
6.4
Ahrefs
8.6

Reviewers' Company Size

Small-Business (50 or fewer emp.)
Small-Business
(50 or fewer emp.)
51.7%
33.3%
75.0%
62.0%
Mid-Market (51-1000 emp.)
Mid-Market
(51-1000 emp.)
34.9%
55.6%
18.8%
30.0%
Enterprise (> 1000 emp.)
Enterprise
(> 1000 emp.)
13.4%
11.1%
6.3%
8.0%
Google Tag Manager
Small-Business
51.7%
Mid-Market
34.9%
Enterprise
13.4%
SimilarWeb
Small-Business
33.3%
Mid-Market
55.6%
Enterprise
11.1%
Alexa Marketing Stack
Small-Business
75.0%
Mid-Market
18.8%
Enterprise
6.3%
Ahrefs
Small-Business
62.0%
Mid-Market
30.0%
Enterprise
8.0%

Reviewers' Industry

 
Marketing and Advertising
38.1%
Internet
26.8%
Information Technology and Services
21.1%
Marketing and Advertising
42.3%
 
Internet
9.7%
Marketing and Advertising
19.5%
Program Development
10.5%
Internet
17.2%
 
Computer Software
7.3%
Public Relations and Communications
17.1%
Online Media
10.5%
Computer Software
14.0%
 
Information Technology and Services
7.1%
Information Technology and Services
14.6%
Internet
10.5%
Information Technology and Services
6.0%
 
Retail
2.4%
Financial Services
4.9%
Design
10.5%
Insurance
1.9%
 
Other
35.4%
Other
17.1%
Other
36.8%
Other
18.6%
Google Tag Manager
Marketing and Advertising
38.1%
Internet
9.7%
Computer Software
7.3%
Information Technology and Services
7.1%
Retail
2.4%
Other
35.4%
SimilarWeb
Internet
26.8%
Marketing and Advertising
19.5%
Public Relations and Communications
17.1%
Information Technology and Services
14.6%
Financial Services
4.9%
Other
17.1%
Alexa Marketing Stack
Information Technology and Services
21.1%
Program Development
10.5%
Online Media
10.5%
Internet
10.5%
Design
10.5%
Other
36.8%
Ahrefs
Marketing and Advertising
42.3%
Internet
17.2%
Computer Software
14.0%
Information Technology and Services
6.0%
Insurance
1.9%
Other
18.6%

Reviews

Most Helpful Favorable Review
Most Helpful Favorable Review
Vincent M.
User in Marketing and Advertising

Ease of implementation and freedom it gives you to make changes on the site that would've otherwise need to go through a dev team, which can be very time consuming. Also allows for much more customization to data tracking and analytics reports.

G2 User in Public Relations and Communications

It gives an OK estimate of site traffic. For a PR pro, it's a necessary tool to track metrics. The Chrome extension aspect of it is a huge plus. Makes it quick, seamless process.

M. Serhat D.
User in Information Technology and Services

Alexa showed us the power of analytics and trends. We use Alexa metrics often when it is time to think about strategic choices for our company. Also Alexa toolbar is an easy to use and focused on purpose tool. I have been using the toolbar since it's...

Kathryn C.
Agency in Marketing and Advertising

The filtering filtering capabilities for backlinks and referring domains is amazingly helpful. It is easy to determine how many links are followed, .edus, .govs, etc. It saves me so much time because I don't have to export all the data and filter it myself....

Most Helpful Critical Review
Most Helpful Critical Review
G2 User in Marketing and Advertising

It can be a bit overwhelming with all the features.

G2 User in Marketing and Advertising

This is not a technology, but a service. You enter domains in a spreadsheet that can do look-ups. You cannot easily do a list build and the way they do look-ups eats into your API calls, which are limited every month. My CSM is definitely trying to be...

Emrah A.
User in E-Learning

I can't trust Alexa because its algorithm is open to manipulation. If i use Alexa Toolbar, my website statistics better than other site which is really good from my website. therefore Alexa must change the algorithm. Alexa insights are not agree with Google...

Eean O.
Agency in Marketing and Advertising

They've gutted their rank tracking system. Legacy customers who have been with the company for years were reduced from updates every day to updates every FIVE days. Unusable anymore. I may completely leave their platform and I will never recommend the...

 
Google Tag Manager
Most Helpful Favorable Review
Vincent M.
User in Marketing and Advertising

Ease of implementation and freedom it gives you to make changes on the site that would've otherwise need to go through a dev team, which can be very time consuming. Also allows for much more customization to data tracking and analytics reports.

Most Helpful Critical Review
G2 User in Marketing and Advertising

It can be a bit overwhelming with all the features.

SimilarWeb
Most Helpful Favorable Review
G2 User in Public Relations and Communications

It gives an OK estimate of site traffic. For a PR pro, it's a necessary tool to track metrics. The Chrome extension aspect of it is a huge plus. Makes it quick, seamless process.

Most Helpful Critical Review
G2 User in Marketing and Advertising

This is not a technology, but a service. You enter domains in a spreadsheet that can do look-ups. You cannot easily do a list build and the way they do look-ups eats into your API calls, which are limited every month. My CSM is definitely trying to be...

Alexa Marketing Stack
Most Helpful Favorable Review
M. Serhat D.
User in Information Technology and Services

Alexa showed us the power of analytics and trends. We use Alexa metrics often when it is time to think about strategic choices for our company. Also Alexa toolbar is an easy to use and focused on purpose tool. I have been using the toolbar since it's...

Most Helpful Critical Review
Emrah A.
User in E-Learning

I can't trust Alexa because its algorithm is open to manipulation. If i use Alexa Toolbar, my website statistics better than other site which is really good from my website. therefore Alexa must change the algorithm. Alexa insights are not agree with Google...

Ahrefs
Most Helpful Favorable Review
Kathryn C.
Agency in Marketing and Advertising

The filtering filtering capabilities for backlinks and referring domains is amazingly helpful. It is easy to determine how many links are followed, .edus, .govs, etc. It saves me so much time because I don't have to export all the data and filter it myself....

Most Helpful Critical Review
Eean O.
Agency in Marketing and Advertising

They've gutted their rank tracking system. Legacy customers who have been with the company for years were reduced from updates every day to updates every FIVE days. Unusable anymore. I may completely leave their platform and I will never recommend the...

Screenshots

 
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Google Tag Manager
SimilarWeb
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