Written in Visual C++, Xenu is a popular computer program that looks for broken hyperlinks and websites. It is a proprietary software that is available for free.

This Link Sleuth runs on the Windows operating system. It was recognized as the fastest link-checking software by the PC Magazine.

It has some amazing features like:

• Finding the least linked-in pages
• Increasing the crawl rate by reducing the number of outbound links of each page
• Optimizing page load time by keeping track of large images and pages
• Images that do not have an alternative text can be found easily
• Identifying issues related to a site’s internal duplicate content

Take your SEO to the next level and make ranking a habit with Ahrefs, even if you’re a novice.

It’s an all-in-one tool with plenty of tools within it meant for different areas of SEO, such as generating content ideas, mining out profitable keywords, checking rankings, and so on.

Being one of the most accurate SEO tools out there, it gives you a sense of assurance that everything you perform on this tool will be nothing short of real data.

Here are some main tools of Ahrefs:

• Site Explorer to get an overview of any site in seconds
• Site Audit to check and optimize your website
• Keywords Explorer for identifying what people are searching for on the internet
• Content Explorer to know what type of content is doing best on your competitors’ sites
• Rank Tracker for keeping a watch on where you stand in the search engines

All of these tools combined help you make your site better and outrank your competition to potentially seal a good spot on the first page of search engines.

Apart from all these great features, you also get access to free learning materials and a super-helpful community on Facebook to clarify any doubts that you’d have + learn inside tricks to make the most out of your membership.

Trusted by brands like Nike, Amazon, and Apple, SEMrush fulfills all your online marketing requirements.

It takes care of your SEO, content marketing, marketing research, advertising, and even social media by leveraging two main things – data and strategy.

It shows you exactly what’s working around the internet and how you can implement it to your benefit without trying to reinvent the wheel.

For example, you can get insights on:

• Profitable keywords
• Trending topics
• Competitor promotional strategies
• Untapped backlink opportunities
• PPC campaign tactics
• Social media accounts

As long as you’re in the online world, there’s always going to be someone hungrier and eager to do things better than what you’re doing.

Their strategies might be making the difference for their growth, which is great, but it’d be super difficult to take wild guesses to replicate their strategies and apply them to your own venture.

That’s where Semrush comes into play. It does a great job of rectifying your flaws and suggesting the best possible fixes to improve your overall online visibility.

Not to make it too dramatic, but it’s somewhat like having a bag full of protective armor that’ll keep your empire strong no matter how good your competitors are.

URL Profiler is a very powerful tool used for SEOs. This SEO tool doesn’t confine itself to just a single task but can also be configured to retrieve large amounts of data from all possible sources.

With no limits and constraints, hundreds of URLs can be analyzed at once. Since this tool is very lean, it has been priced reasonably for its easy deployment.

Some of its features:

• Domain research: Helps users find relevance, ownership footprints and website authority
• Link prospecting: Allows blazing fast prospecting of all the data in a single place
• Penalty audits: Helps in quickly classifying links while getting penalties removed
• Social and Contact Data can be collected in abundance to boost a user’s outreach

Visual SEO Studio is a professional SEO audit tool. This tool can be used as a desktop analyzer for freelancers, in-house SEOs, web agencies and many e-commerce owners.

It has three versions up for use, a free, a trial and a paid version.

This tool has some really powerful features that are as follows:

• Visual SEO Studio Spider: Like search engine bots, it helps users explore sites, displaying in real-time, the path taken for crawling.
• XML Sitemap Control: A full control over the editing, auditing and validation of XML sitemap cycles.
• Site Analysis Suite: Pre-packaged reports provided for most common issues.
• Google Search Console: Integrated with Google search console, it provides Search Analytics data and site verification.

This SEO tool gives your website the benefit of outranking the competition on various search engines.

Spyglass is not only very easy to use but also provides tools that have all the information needed to become an expert SEO consultant of a website.

It has two versions, Professional and Enterprise, that lets users choose their tools accordingly.

It has some great features like:

• Finding the backlinks to any website on the internet
• Spyglass provides instant Google PageRank for the inbound links of websites
• Identifying the amount of traffic sent from each and every backlink
• Uncovering the age of various domains of backlinks
• Providing a proxy server to spy on competitors

Beam Us Up, is a great SEO crawling software. It is one of the fastest SEO tools that does not waste your time in exporting and analyzing the SEO crawling software.

This tool is available for Windows, Mac OSX and Linux. Unlike other crawlers, with no fixed limit for crawling, users can crawl through websites for free.

Some of its features involve:

• Finding Errors: Beam Us Up has built-in smart filters in the crawler that displays the common SEO errors
• Excel and Drive Export: All the data, along with the filters, will be easily transported to Excel or Google Drive Spreadsheets.
• Sorting Duplicate Pages: This tool allows quick identifying of duplicate content. By flagging the problem, it helps remove duplicate sites.

Netpeak Spider is one of the best SEO crawlers out there in the market today. It is designed to run SEO audits on the required web pages and report any discrepancies.

The software has a fourteen-day trial version, after which the license can be bought in subscription periods of 1 month, 3 months, 6 months and 12 months. The tool can carry out the following tasks

• Fifty plus on-page SEO parameters check
• Spot website optimization issues
• Incoming and outgoing internal link analysis
• Find broken links

The software is designed to warn you about errors like

• Page rank dead ends
• Duplicate titles
• Broken redirect
• Endless redirect

Screaming Frog is an SEO spider tool, used in order to link images and scripts just like a search engine to evaluate the SEO on a website.

A free version of the software is available which can carry out the following tasks:

• Find broken links and redirects
• Page data and Metadata analysis
• Duplicate page discovery
• With a URL crawl limit to 500

The paid version charges 149 pounds per year and is able to provide additional help like

• Crawl configuration
• Search console integration
• Free technical support
• Unlimited URL crawl limit

Companies like Apple, Google and Amazon are known to use this software.

SEO powersuite may seem like your average SEO tool, but it isn’t. What it really is, is a group of tools, 4 to be specific, which make sure your web page functions correctly and ranks high on search results.

The 4 tools are

• Rank Tracker

Collects ranking data does keyword research, reports ranking to the user and carries out scheduled tasks.

• SEO Spyglass

Carries out a quality audit, anti-penalty audit and check link quality based on 50+ factors

• Website Auditor

Does SEO health check and crawling and indexing.

• Link Assistant

Carries out link management and quality verification.
The free version of the software is available along with paid versions called professional and enterprise.