Screaming Frog: The Best Desktop Based Website Crawler in 2020


Screaming Frog SEO Spider is a desktop-based crawler that allows you to crawl your website. This in-depth review will help you to find issues within your site and how its other features can be useful for you.

Product Outline

Screaming Frog SEO Spider is one of the best desktop-based crawlers. With this tool, you can find broken links, audit redirects, discover duplicate content, generate XML sitemaps, visualise site structure, analyse page titles and meta description. Its free version allows you to crawl 500 URLs only, if you want to crawl more, then you have to purchase a license.


➞   Third-party integrations
➞   Easy to export generated data
➞   Crawl any website within minutes
➞   Identify broken links and duplicate content


➞   No cloud-based service
➞   Confusing interface for beginners
➞   Limited crawls with the free version

Performing an SEO audit manually becomes difficult when you have hundreds of pages in your site.

Having the right tool will help you to analyze the number of broken links, broken images, missing meta description, H1 tag, title, and other SEO related issues.

Have you ever tried a tool that can crawl your full website and then generate the report of all the issues?

If not, then you should give a try to Screaming Frog SEO Spider tool.

A tool that helps you to identify flaws in your website that can affect your site rankings so you can take proper actions.

In this Screaming Frog SEO Spider review, we will look at this tool and how I used the tool to audit redirects when I migrated my website.

Screaming Frog SEO Spider Overview

Screaming Frog SEO Spider is a desktop-based crawling tool that allows you to crawl your website to analyze and audit technical & onsite SEO. If you want a cloud-based crawling tool, then read our in-depth review of DeepCrawl.

From now onwards, I will use SEO Spider instead of Screaming Frog SEO Spider.

SEO Spider supports macOS, Windows, and Ubuntu. You can download and install it on your desktop, it will automatically detect your operating system as soon as you click on Download.

You might be thinking why anyone will use a desktop-based tool just for finding the errors and issues within the site.

To be honest, I also thought that, until I used its free version.

It presents the complex SEO data in an easy-to-understand format. However, the issue of not being a cloud-based tool cannot be neglected, but it’s worth using it.

Once you open the SEO Spider tool, you will see various tabs at the top, lower and right side window. To understand the functioning of each tab, you can read the SEO Spider’s user guide.

Now, we will see some of its best features and how they can be used for your site.

Screaming Frog SEO Spider Features

SEO Spider offers various features that are quite often missed by experienced users as well. I cannot cover all the features, still, I will discuss my favourite and most important features in the tool.

In some of the features mentioned below, I have shared the links that will be redirected to the page where you can see how to use that particular feature within the tool.

I hope some of these features will help you to save your countless hours.

Auditing Redirects

When you migrate your site, you have to ensure permanent 301 redirects from the old URLs to the new URLs. At that time, it’s important to audit redirects on a site to prevent wrong destinations and errors.

You can upload the list of old URLs and then crawl them using the SEO Spider tool. You have to check redirects until you reach the final URL with a no response, 2XX, 4XX, or 5XX.

Once the crawl is finished, you’ll have to check the reports that mention the start and final URLs, their status codes and other information.

You can visit their site to get started with auditing redirects in a site migration.

Canonical Errors

The canonical tag helps the search engines to understand your preferred URLs (the web pages that you want to index). Fortunately, it helps you to avoid indexing of duplicate or similar content.

But, a canonical tag can cause serious SEO problems if you don’t use it properly – for example, if you canonicalize an entire site to your home page, or redirect to 404s and so on.

Navigate to Reports > Canonical Errors. You can select between “Canonical Chains” and “Non-Indexable Canonicals”. After exporting the report, you can view canonical errors detected by SEO Spider.

You can visit their site to get started with auditing canonicals.

Run Multiple Crawls Simultaneously

Currently, you cannot crawl more than one site at a time in the SEO Spider tool. However, you can do the same by opening multiple windows of the software.

On Windows, you can directly open the second window of software by the shortcut. But, on macOS, it’s not that straightforward.

To open multiple instances of the tool on macOS, you have to first launch a Terminal on your Mac and then type:

open -n /Applications/Screaming\ Frog\ SEO\

Crawl Path Report

The Crawl Path Report gives a quick insight into how the crawler identified that particular page or the path crawler took to reach the destination URL.

This report can be very helpful when you generate it for the pages that have a high crawl depth level. The Crawl path report can also be used to identify how the crawler picked up the problematic URL.

Right-click on any URL, click on “Export” and then select the “Crawl Path Report”. A report in CSV format will be downloaded.

Crawl Visualisations

SEO Spider provides interactive website visualisations to understand your site’s structure in different ways.

Visualisations provide data that are already available in a crawl. They are useful to understand the issues within the site. Most people use visualisations so they don’t have to look into spreadsheets.

Right-click on a URL, click on “Visualisations”, and then select the type of graph or diagram from the following:

  • Crawl Tree Graph
  • Directory Tree Graph
  • Force-Directed Crawl Diagram
  • Force-Directed Directory Tree Diagram

Crawl Tree Graph and Force-Directed Crawl Diagram generates the visualisations that tell you how the SEO Spider crawled your site (by shortest path).

Force-Directed Crawl Diagram

The diagram looks like a heat-map representing the homepage as the darkest green node. It represents that the crawl has started from the homepage and the lines between two nodes represent the link between two URLs.

As the crawl depth increases, the nodes get smaller and lighter. You can easily understand it by viewing the below image.

From the top-right corner, you can click on the ‘i’ icon to get more information about the colours of nodes.

Crawl Tree Graph

The purpose of the Crawl Tree Graph is the same as that of Force-Directed Crawl Diagram but it differs in the representation.

The URLs are represented with the small circles, and the lines represent the link between two URLs having the shortest path. The crawl depth can be calculated by viewing the graph from left to right.


Store & Rendered HTML

Sometimes, SEO Spider is not able to pick missing titles, meta descriptions, or canonical tags that can be seen to exist in a browser. It can be possible due to the site responding differently to the browser.

To diagnose exactly what the SEO Spider is considering, you have to save the HTML return by the server.

Navigate to Spider Configuration > Advanced. Checkbox both “Store HTML” and “Store Rendered HTML”.

After configuring, when a URL is crawled, it will return the exact HTML that was first returned to the SEO Spider. You can view it in the “View Source” tab.

Now, you can analyze the issues by reviewing the returned HTML. This feature will help you to diagnose the issues quickly and easily.

Note: Perhaps you have read many common features of this tool in other articles. In my review, those features may be missing because you can uncover them easily on your own once you start using the tool.

Plans & Pricing

SEO Spider offers two plans, in which one is free and the other is paid. For the paid version, you have to purchase a license that costs £149 per year.

If you want to identify broken links and analyze site metadata, you don’t have to purchase a license. But, when it comes to advanced features, then sticking with the free version is not a great idea.

With the paid version, you’ll be able to access advanced features, including schedule crawling, JavaScript rendering, custom extraction, Google Analytics and Search Console integration, custom robots.txt, and more.

You can only crawl 500 URLs with the free version. To compare all the features of the free and paid version of Screaming Frog SEO Spider, you can visit their official pricing page.

A single user needs one license, so if you want to allow two users then you’ll have to purchase two licenses. You can even purchase multiple licenses at a discounted price. To get a discount, you have to purchase 5 or more licenses.


Screaming Frog SEO Spider is not the only crawling tool, there are other crawling tools also available in the marketplace. Today, we will discuss two best alternatives to SEO Spider in which one is cloud-based and the other is a desktop-based crawling tool.


DeepCrawl is a cloud-based crawling tool that can run a large size of crawls to monitor and analyze the issues within your website. You can also view the issues prior that might come after you migrate or launch the site.

Unlike other crawling tools, DeepCrawl allows you to perform a technical audit, link audit, competitor analysis, site migration, site testing and optimization. It also offers various advanced features such as URL rewriting, JavaScript rendering, link restrictions and more.

If you want to run crawl more than a single time, you can schedule the crawls as hourly, daily, weekly, fortnightly, monthly, or quarterly basis.

When DeepCrawl identifies an issue, you can add a specific issue to the task manager and assign it to one of your team members. Within the task manager, you can describe the problem in detail and assign a deadline to completion.

The paid plan of DeepCrawl starts from $14 per month with which you can crawl 10,000 active URLs and full access to API. It also offers a 14-day free trial without providing the payment details.

Check our complete review and walkthrough of DeepCrawl here to learn more about this web-based crawling tool

Netpeak Spider

Netpeak Spider is a website crawler that helps you to discover various SEO issues within the site. By identifying the potential SEO issues, you can improve the visibility of your site in the search engine.

Netpeak Spider also checks for pages, titles, meta descriptions, headers, broken images, duplicate content, robots.txt file, and more. If you fix all of these issues, you can increase the organic traffic on your site.

Netpeak Spider PageRank Checker helps you to optimize your backlink profile by displaying dead ends, redirect pages, orphan pages, and other issues with each URL.

You can also generate white-label reports covering various aspects of on-page analysis. The white-label reports can be exported in PDFs. However, this feature is available in the Pro and Custom subscription plans.

The cheapest plan of Netpeak Spider starts from $19 per month that offers various features, including website crawling, site optimization, SEO audit, etc. You’ll have to upgrade your plan if you want to crawl more than one site simultaneously.

Conclusion — Screaming Frog SEO Spider Review

At a first look, you might not like to use Screaming Frog SEO Spider due to its interface, but once you get in-depth data about the SEO issues and performance of your site, you’ll definitely ignore its user-interface.

Being a desktop-based crawling tool, still, it generates valuable insights that other web-based crawling tools are unable to do.

I wouldn’t say that you should invest your money on Screaming Frog SEO Spider, rather I would suggest you use its free version first.

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