Now that you’ve got your technical SEO sorted and conducted your keyword research, you’re ready to start writing content for your site. This is where on-page SEO comes into play.

On-page SEO refers to the on-page HTML elements of your site and blog posts. It encompasses everything from meta tags to the heading structure and layout of the article contents themselves and it plays an important role in getting specific pages ranked.

We’ve compiled this list of on-page SEO tools to help you along your content writing journey. Continue reading to find out how these tools can assist you with the likes of outdated content, duplicate content and even targeting more than one language/region.

On-Page SEO tools

Many new bloggers and site owners are misguided by the popular adage ‘Content is King’ and often jump right into the content before doing diligent keyword research and technical SEO maintenance. If you’re starting from a weak foundation, then no matter how good your content is you’re not going to begin seeing the results you hoped for. We advise you only move onto content writing when everything else is in place.

That said, assuming you’ve done everything else, on-page SEO and content writing is an enjoyable and stimulating aspect of SEO. Although it can be a sometimes laborious process, these great on-page seo tools should help you reap the rewards your content deserves!

1. Animalz Revive

Pricing: Free

If you’ve been blogging for a while, it’s quite likely that you’ve built up a hefty amount of content. While this is good on paper, outdated content can be negatively scored by search engines which could push once high ranking articles further down the ranks. How do you fix this? Well you use a tool like Animalz Revive.

This free and simple tool accesses your Google Analytics data and flags any links that they feel are being affected by decay. This report is then sent to your email address for you and your team to review, so you can conduct a bit of spring cleaning and improve the quality of your content.

2. Copyscape

Pricing: Free / Paid

One of the most negatively impactful SEO rules you can break is duplicate content. If you’re copying content from others and rebranding it as your own without really changing much, this doesn’t go down well with search engines and soon enough you’re bound to pay the price.

However, what if others have copied your content without you knowing or you’re worried your article might be too similar to another? Thankfully tools exist to scour the internet looking for duplicates. One such tool is Copyscape.

Copyscape is a free tool to help you find duplicate content from a given source. Simply enter a URL to one of your posts and the tool will see if there are any other sites out there that come close to matching it. You can also pay for a premium version that provides additional features like team management, plagiarism cases and direct API access for automatic searching.

3. Google Tag Manager

Pricing: Free

While it may not seem like an obvious on-page SEO tool, Google Tag Manager, can help you create content that converts.

The tool allows you to add tags to be able to analyse and segment users, meaning you can determine the pages a user clicked through before landing on a desired page. For example, if it becomes apparent that many users are bouncing once they land on a certain page, you might have found a potential issue with your site. Moreover, if a user needs to click through a number of pages before they make a purchasing decision then it could be because the pages they landed on weren’t optimised enough.

4. Hreflang Tag Generator

Pricing: Free

If your site is targeting a global audience and you feature region specific pages, your content may be incorrectly optimised. This means that when a user from Japan searches for your brand, they may be returned results from your Chinese page for example or vice versa. To fix this, you need to properly ensure that your pages are targeting the correct geolocations. Thankfully tools exist to help you out.

Aleyda Solis created one such tool called Hreflang Tag Generator. The tool quickly generates the needed tags for the supplied targeted countries so search engines know to return the most relevant result. This simple task could drastically increase the rankings of your region specific pages.

5. Moz On-Page Grader

Pricing: Paid

If you’re looking for an on-page SEO checklist to ensure your pages meet all the necessary guidelines, then the Moz On-Page Grader could be exactly what you’re looking for.

This paid for tool scans supplied pages against Moz’s detailed list of on-page SEO recommendations and scores your content allowing you to see exactly where you need to improve to be able to increase your chances of ranking.

6. Rich Results Test

Pricing: Free

Rich Results Test is another simple to use tool offered by Google to enhance your understanding of your site and its content.

This specific tool is designed to test whether or not your page can facilitate rich results – a prominent search engine result snippet that offers more functionality compared to traditional listings. This is a great way to improve your SEO and click through rate as being listed as a rich result increases the likelihood your post will be clicked.

7. SEO Crawler

Pricing: Paid

Similar to Moz’s On-Page Grader, SEO Crawler is an analysis tool to check on-page data.

This paid tool offers a suite of features, but the on-page auditing is great for finding missing or duplicate meta and title tags, checking the originality of your content and highlighting any broken links.

8. SEO Mofo

Pricing: Free

If you want to visualise and improve the appearance of your search engine result snippets, then look no further than SEO Mofo. This quick tool will simulate the appearance of your search engine results and alert you if your title and description are too long.

Simply enter your title, description and URL, select any additional options and your simulated snippet will generate on the fly! A great tool if you want to test a range of potential titles/descriptions with other members of your team or even focus groups!

9. SERPSim

Pricing: Free

SEO Mofo is great and all for content that is yet to be published, but what about if you want to check your live pages? Well SERPSim provides the same results page simulation as SEO Mofo, but you can enter a live URL and click ‘fetch’ to default the input to your real metadata.

This is a great way to quickly test whether your published article looks exactly how you wanted it to!

10. Wordtracker Inspect

Pricing: Free / Paid

As well as being a great keyword research tool, Wordtracker also offers an on-page SEO tool called Wordtracker Inspect.

This easy to use tool analyses a given URL to see how well optimised it is. It scores your page against citation flow (internal links), trust flow (backlinks), page speed (how fast your page loads) and optimisation (on-page structure), before giving you an overall difficulty score of how hard it would be for another page to outrank yours. It even tells you what the top keywords are on the page and gives you a bunch of recommendations to boot!

The free version grants you 12 searches a day, while the paid version removes the limit and provides additional features and results.


Mastering SEO is a continuous process that takes time and substantial effort. But you don’t have to do it alone!

No doubt your content writing will improve with time, but if you’re looking to hack your results, find quick wins or are just curious on how technology can make your life as a content writer easier, hopefully these tools can help.