March 12, 2025

How Important Is Site Speed For SEO?

Written by
Jamie Stowe

Are you looking to take your website to the next level but worried that your site speed is holding you back? Unsure whether poor site speed will even affect your SEO? In this article, we’ll dive into how site speed affects your SEO, what is considered a good site speed, how to measure it, and ways to improve it through AMP.

Key takeaways

Here’s a quick introduction to site speed and how to improve it:

  • A site speed score of above 90 is considered “Good”, if you score below that, your site speed needs work.
  • Site speed is an important ranking factor, as confirmed by Google.
  • There isn’t one way to improve site speed and it requires multiple optimisations. We’ve listed our top 8.
  • AMP strips your page down to the basics to provide an almost instant loading time for mobile users.
  • AMP can be implemented manually by a developer, or by using a plugin such as AMP for WordPress.

What Is Site Speed?

Site speed refers to how fast a browser can load a page from your website. This includes the initial payload from when you click on a new site or page to when you see the content, not involving anything that happens once the page is loaded – see Site Performance.

Metrics that measure site speed include First Content Paintful, Largest Content Paintful, and Time To First Byte.

What is a Good Site Speed?

According to Google’s own documentation, a PageSpeed Insights score of 90 or above is considered good. If your site gets a score of between 50-89, this needs improvement, while below 50 is considered poor.

However, it also depends on specific metrics that are measured during the test, such as First Content Paintful and Largest Content Paintful – each of which has its own range for good, needs improvement, or poor scores.

[Screenshot from https://developers.google.com/speed/docs/insights/v5/about]

What Is The Difference Between Site Speed & Site Performance?

While site speed and site performance are often used interchangeably, they are slightly different. Performance is actually an umbrella term that includes site speed, the page’s responsiveness once loaded, and how well the site performs from a technical standpoint.

For example, once a page loads, it can sometimes take a moment for the page to show the correct styles, which can cause the page to shift and jump once the style loads. This would fall under site performance since the initial loading of the page has already been completed.

It can also involve how well elements load as you move down the page, how fast popout menus load, and how JavaScript performs once triggered.

Does Site Speed Affect Google Ranking?

Absolutely. Site speed has been a confirmed Google ranking factor on desktop since way back in April 2010, with mobile rankings including site speed since July 2018. Essentially, the faster your site loads, the higher you’re likely to rank.

How Important is Site Speed For SEO?

Site speed is one of the more important aspects of SEO to get right. With a technically poor website, you’re unlikely to rank well on search engines. This is because user experience is one of Google’s key ranking factors and site speed will greatly affect this.

How To Increase Site Speed?

Optimising site speed isn’t a single task, unfortunately. You’ll need to check over a range of things on your site to see what areas could be slowing your site down and most of these require a lot of manual work.

Here are the top 8 areas to optimise your site speed with:

  • Optimise Images – If used incorrectly, images can have massive file sizes that slow down your page’s load times. Ensure that all images are uploaded at the correct size for their use on the site and using an efficient format.
  • Limit HTTP Requests – Your pages will often require multiple HTTP requests to load the page, including images, Javascript, and CSS files. Each request adds load time while the browser waits for a response from the server hosting the file, so the number of requests should be kept to a minimum. Bear in mind that your choice of page builder can have a huge impact on the number of HTTP requests a page requires.
  • HTTP Caching – A developer can instruct the user’s browser to temporarily save certain elements of the page so that it’s loaded much faster on their next visit. This can greatly reduce loading times for your regular customers.
  • Remove Unnecessary Code – Pages will often be instructed to load code that isn’t actually used on the page. Removing this extra code will reduce load times and could also reduce the number of HTTP requests required.
  • Limit External Plugins & Scripts – Using a large number of external scripts and plugins can add to your load times – even when compared to achieving the same functionality manually. This is because external plugins will often include a lot of extra functionality and tasks that you aren’t using on your site.
  • Remove Redirects – Some redirects are unavoidable, but they will always add time to the page load. Make sure to remove all possible redirects and go through all of your pages to make sure you haven’t internally linked to pages that have been redirected.
  • Minify CSS & Javascript – Minifying code is the practice of removing any whitespace, comments, or unnecessary characters from your code. This essentially means that the browser will have less code to parse through, saving time. While the time savings here are marginal, it’s definitely worth doing. Just keep in mind that this can sometimes affect how your site looks or functions, so test your site in-depth afterwards.

What Are AMP Pages?

AMP (Accelerated Mobile Pages) is an HTML framework that strips your site down to basics to help it load faster on mobile. Initially created by Google, Bing and other search engines have begun to use AMP’s too.

Essentially, AMP restricts the HTML of a webpage and removes a lot of the extra design elements and attributes that slow down pages such as banners, images, and animations. This means that you’re left with the text content of the page with only the basic essentials so that the page loads almost instantly.

What Are The Negatives Of AMP Pages?

While AMP has benefits in terms of site speed and potential rankings, there are also certain negatives that should be considered.

Firstly, AMP strips down your page to the bare bones, meaning that it will essentially just be text. This can make for a very simple page that will load great but might have a negative impact on your conversion rates and the bottom line due to the lack of engaging content.

This means that you should only really use AMP if the design of the page is considered to be less important than the text content and speed of the page. This could be the case on blog pages for example.

How To Convert Normal Pages Into Accelerated Mobile Pages

To implement AMP into your site, you’ll need to add AMP HTML, Javascript, and cache. Doing this manually will require a developer to get right, but if you’re interested in learning more, you can read the AMP HTML Specification from Google.

Alternatively, you can often use plugins to complete these actions for you – depending on which CMS you’re using. Google, the AMP team, and Automattic (the founder of WordPress) contributed to an official AMP plugin for you to use to take over all of the heavy lifting for you.

This plugin is compatible with most other site speed-related plugins such as WP Rocket and setup is as simple as uploading the folder to your plugins, activating the plugin, and following the onboarding wizard to go through the guided setup.

Site Speed Optimisations To Improve Your SEO

With site speed being such an important factor for your overall SEO strategy, it’s important to get it right. At Wildcat Digital, our technical team are adept at completing technical optimisations of your site to ensure that pages load quickly and efficiently.
Get in touch with a member of our expert team to discuss your requirements and see what we can do for your site.

Post by

Jamie Stowe

Senior SEO Account Manager

Will Hitchmough

Founder

Our founder, Will Hitchmough, worked at a number of high profile Sheffield Digital Agencies before founding Wildcat Digital in 2018. He brings an extensive knowledge of all things related to SEO, PPC and Paid Social, as well as an expert knowledge of digital strategy.

Digital Marketing can be a minefield for many businesses, with many agencies ready to take your money without knowing how to deliver results. I founded Wildcat Digital to deliver digital success to businesses with smaller budgets in a transparent way.

Rich Ayre

Head of Growth

Rich joined us in May 2024 to head up our growth team. With years of experience helping other agencies to grow, Rich joins us at an exciting time as Wildcat is working on a five-year plan to become one of the biggest agencies in the UK.

Outside of work, Rich is a father to three children, which keeps him very busy! He’s also recently started running again to keep fit and loves a bit of DIY.

Sarah Tyree

Head of Digital

Sarah joined Wildcat in January 2025, bringing over seven years of SEO expertise to the team. With a background in Fashion Communication and Promotion, she has worked both in-house and at agencies, covering a range of digital marketing specialisms before focusing on SEO.

Passionate about all things search, Sarah thrives on helping brands grow their online presence.

Outside of work, she enjoys walking her dog, running, and shopping for vintage clothing.

 

Amelia Ashman

Office Manager

Amelia joined Wildcat Digital in January 2025, bringing extensive experience in HR, Health & Safety, Facilities Management and IT Support. Previously an Operations Manager at The University of Sheffield, she has a strong background in creating efficient and well-organized work environments.

Specialising in HR, Health & Safety, and Facilities Management, Amelia ensures the Wildcat Digital team has the resources and support needed to thrive. Whether managing office operations, maintaining compliance, or fostering a positive workplace culture, she keeps everything running smoothly.

Outside of work, Amelia loves trying new things, traveling, camping, and walking. She also enjoys socialising and exploring new places with friends and family. Her adventurous spirit and proactive approach make her a valued member of the team.

Siena Russell

Client Success Coordinator

Siena joined us in 2023 with a background in sales and digital marketing. She leads on client relationships across the company, ensuring that our customers are happy throughout their journey with us, from their initial consultation through to onboarding and beyond. 

Outside of work, Siena enjoys travelling and getting stuck into the local culture. She likes to make the most of her experiences and particularly enjoys watching sunrises and sunsets from beautiful locations around the world.

Paul Pennington

SEO Account Director

Paul has a strong background in SEO, having previously founded and ran a successful eCommerce business, as well as running a personal blog that achieves an average of 17K users per month. Paul’s knowledge of SEO is extensive, with a strong emphasis on client handling and technical SEO.

Outside of work, Paul enjoys spending time with his family and staying active with weight lifting and combat sports.

Dariusz Baczyk

Team Lead & Technical SEO Account Manager

With a degree in Computer Science and SEO experience dating back to 2017, Dariusz has a wide range of SEO skills and knowledge. His specialist knowledge of Technical SEO has firmly landed him the title of Wildcat’s Technical Wizard, and he has recently taken on the responsibility of Team Leader for the Panthers Team.

In his spare time, Dariusz loves hiking, experimenting and trying new coffees and loves learning new things. He is currently learning more about CRO and AI and how this could benefit our clients.

Molly Sturgeon

Team Lead & Senior SEO Account Manager

With a background in sales, Molly is a natural Account Manager, brilliantly handling any issues that come her way. Having joined us as a Digital Marketing Executive, and working part-time through her final year of University, Molly is a shining example of how hard work pays off. She is now an SEO Account Manager with a particular interest in Content and Client Management. 

In her spare time, Molly loves to get out in nature, hiking and exploring the Peak District. She also loves cooking and likes to unwind with a bit of yoga.

Libby Oldale

PPC Team Leader

Libby joined Wildcat in 2021 as our first PPC hire. With a degree in Digital Media Production, a Master’s in Digital Media Management and previous experience in Social Media Management, Libby hit the ground running and has since climbed the ranks to Senior PPC Account Manager and has a particular interest in the eCommerce sector.

Outside of work, Libby likes gaming, and cooking and likes to keep active by lifting weights.

Jamie Stowe

Senior SEO Account Manager

With a degree in Film and TV production, and a varied career history, Jamie made the move to marketing with a Masters degree in Digital Media Management. He has since worked in SEO at Agencies across Sheffield, before joining Wildcat and working his way up to SEO Account Manager. Jamie has a particular interest in backlinks and Digital PR and has recently gained a client a valuable backlink from Forbes!

In his spare time, Jamie is an avid foodie and loves trying new restaurants and cuisines. He also loves to travel and spent a year travelling to Australia after university.

Jasmine Savery

SEO Account Manager

Jasmine joined Wildcat in 2022 with a strong background in SEO and Account Management. At the time, she was finishing up a Level 4 Apprenticeship in Digital Marketing from the Chartered Institute of Marketing, and has since worked her way up to SEO Account Manager. Jasmine excels at content writing and promotion, and particularly enjoys finding creative ways to join the dots on multi-channel campaigns.

In her spare time, Jasmine volunteers at a charity, helping combat loneliness & social isolation experienced by older neighbours. Outside of Wildcat, she owns a catering company, Savery Grazing, creating delicious grazing tables & platters for a range of events. She also loves skiing and exploring the Peak District.

Jon Herdman

Senior SEO Executive

After spending ten years managing businesses, restaurants, cafes and event spaces across Sheffield, Jon decided to change careers and joined Wildcat as an SEO Executive in 2022. He especially enjoys the client management side of the job, helping them to understand digital marketing and ways in which they can build their business’s presence online. 

Outside of work, Jon likes to keep fit with running, badminton and football, and also loves music. 

Andy Blanchard

Senior SEO Executive

Andy joined Wildcat in 2023 after starting his digital marketing career in-house for a local Sheffield company. Since joining, he has developed a strong interest in Technical SEO and has strong skills in Account Management. 

Outside of work, Andy loves music and plays in a couple of bands. He also enjoys rock climbing, cycling, photography and good food.

Tom Brookes

PPC Executive

Before joining Wildcat, Tom worked across different industries, building skills in sales and customer service. He later developed a passion for digital marketing whilst working on personal marketing projects and freelance ventures, and gained numerous certifications in PPC and Social Media. 

Outside of work, Tom enjoys staying active by going to the gym and hiking. He also loves travelling and motorbiking.

Kezia Humphries

Senior SEO Executive

Kezia joined us in July 2024 after completing a CIM Certificate in Digital Marketing and gaining experience in Content SEO at another Sheffield agency.

In her spare time, Kezia loves to get outdoors, bouldering, hiking and travelling.

Alex Hickling

Senior PPC Executive

Alex joined Wildcat Digital in December 2024 as a Senior PPC Executive, bringing a strong background in Paid Media, Paid Social, and Programmatic advertising. With a degree in Business & Marketing and Google Ads certifications, she has the expertise to craft high-performing campaigns that drive results.

Before joining Wildcat Digital, Alex worked at two leading agencies in Leeds, honing her skills across various digital advertising platforms. Her analytical mindset and strategic approach help businesses maximize their online presence and advertising budgets.

Outside of work, Alex enjoys spending time with her dog, Lola, and going on walks with her dog walking group. She’s also a keen footballer and loves playing five-a-side whenever she gets the chance. Her enthusiasm and team spirit make him a great addition to the Wildcat Digital team.

Amy Varley

SEO Executive

Amy joined Wildcat in 2024 with a background in journalism, having worked as a News Editor and Editor-in-Chief at The Sheffield Tab. She is naturally interested in Content SEO and research, so will no doubt prove to be a content power-house.

In her spare time, Amy loves watching crime shows, listening to music and hanging out with her dog, Eddie!

Reiss Mason

SEO Executive

Reiss joined the Wildcat Digital team in July 2025, with a background in journalism and digital content, Reiss brings both creativity and technical know-how to the team.

After graduating with a Journalism Studies BA from the University of Sheffield, where he also served as Games Editor and Deputy Editor for the student-run newspaper – Reiss jumped straight into the world of climate tech communications.

Outside of work, Reiss loves crochet, swimming, playing guitar, and diving into both video and board games. He’s always up for picking up new skills and trying new things – which makes him a perfect fit for our team!

Lucy Young

Senior SEO Executive

Lucy joined the WildcatDigital Team in August 2025, with solid SEO experience and a creative edge from her work in wedding videography, a combination that brings both strategic insight and storytelling flair to the team.
When she’s not deep in keyword research or editing stunning wedding footage, you’ll probably find Lucy exploring new places on long walks or unwinding with a few books.

Bekky Croson

Office Assistant

Bekky joined the WildcatDigital Team in October 2025, with over a decade of customer-facing experience – including running her own vegan café.

Bekky brings a wealth of energy and expertise to the team. When she’s not keeping things running smoothly in the office, you’ll find her cooking up a storm for friends or playing hockey with the Sheffield Women’s squad.

Bianca Croitoru

PPC Account Manager

Bianca joined the WildcatDigital Team in October 2025, having worked with charities from £100k to £7M, blue-collar lead gen businesses, and clothing e-commerce brands – building multi-channel marketing strategies that flow seamlessly, Bianca will be a real asset to the team.

When she’s away from the office, Bianca loves diving into holistic health experiments… and indulging her inner conspiracy theorist (or truth seeker, depending on who you ask).

Fiorela Imerai

SEO Account Director

Fiorela joined the WildcatDigital Team in October 2025, she joins us with a strong background in SEO and Digital PR, helping UK and global brands grow their online presence and strengthen their reputation.

Outside of work, you’ll usually find her cooking, exploring new places, or “just browsing” flights… that she’ll probably end up booking!

Eviee Taylor

SEO Senior Executive

Eviee joined the WildcatDigital Team in January 2026 and has a background in marketing and SEO for the education and theatre industries, with a keen passion for writing and accessibility.

She is also a keen crafter, theatre-goer and certified cat lady!

Liv Hardwick

Content & Proposal Writer

Liv joined the WildcatDigital Team in June 2025, with a strong background in financial admin and client care, Olivia is taking an exciting step into the creative world – and we’re so glad she’s doing it with us!

She’s currently studying content creation through her apprenticeship with Wildcat, and already bringing fresh energy and creativity to the team.

Outside of work, Olivia runs her own BIAB nail business, loves reformer Pilates, long walks, and is a member of a competitive dance team.

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