Over the past few years, like everything else, SEO has gone through significant changes. This blog will take you on a journey through the evolution of SEO, which has shaped the industry over the past 20 years. As a marketing agency, understanding the changes that have been made within search engine optimisation is critical in order to help our clients remain competitive. SEO is changing in 2025, urging content to become more user-oriented, honest and human. This blog will explore the latest trends, statistics and current strategies that define the SEO landscape.

Changes in the SEO World
In 2015, user experience (UX) has become an important factor in SEO. It is all about providing smooth and enjoyable experiences for users once they land on your website. UX goes hand in hand with SEO, and it’s important to understand why and how. When evaluating and rating your website, Google doesn’t only consider technical factors. It also takes human behaviour into account, gathering data on how long users typically spend on your website and how they interact with it. The user-related metrics are an indicator of the quality of your website; optimising the user experience also optimises SEO.
According to research, 74% of users return to a website if they experience a good user experience, and 88% of consumers are less likely to return to a site after a bad experience, making it crucial for businesses to prioritise a smooth and engaging user experience.
Artificial Intelligence and How It Has Impacted SEO
AI is also transforming the future of SEO. Traditional tactics like simple keyword optimisation are no longer enough, which is why understanding AI is crucial, as it is reshaping search and adapting accordingly. As we are all aware, AI has become more advanced and popular in the past few years. AI is influencing everything, including how search engines rank content.
AI is the engine behind today’s search algorithm. AI-powered tools make SEO more efficient and precise. What you can do is audit your current SEO tool kit and investigate AI-driven solutions that align with your goals. AI is the future, and it is reshaping the way we approach optimisation. According to research, 67% of businesses already use AI for content marketing and SEO, and 78% are satisfied with the results. But keep in mind that AI isn’t here to replace SEO, it is here to enhance it. Focus on creating user-centric content that meets both human and AI expectations.
How Google Algorithm Has Changed
Experience, Expertise, Authoritativeness and Trustworthiness (E-E-A-T) is a framework that Google’s human reviewers use to assess content quality. This is important for SEO because it helps create quality content that performs well in Google results and performs well with users. This has evolved in 2025 as Google now use advanced AI to evaluate it more accurately; assessing how well content answers user questions and the overall quality of interactions. Google also now considers how your content is shared and discussed on social media and how others recognise you. They also look at clear privacy policies, honest content and reliable customer service.
In 2025, E-E-A-T remains crucial for SEO, but its application is getting more sophisticated. By focusing on delivering high-quality, trustworthy content, building your authority and ensuring a smooth user experience, you can improve your search rankings and strengthen your online presence. Staying updated on E-E-A-T trends and adapting your strategies will help you evolve the SEO landscape. Statistics show that 88% of consumers trust online reviews as much as personal recommendations from other people.
Unlike in the past, where SEO was primarily about matching keywords, modern algorithms focus on understanding the meaning behind queries. This means that businesses need to create content that provides real answers and value, not just a tick box of keywords.
How Mobile Optimisation Impacts Ranking
Mobile devices have reshaped how people interact with search engines, according to research, 72.59% of Google’s visitors come from mobile devices therefore, focusing on your mobile SEO efforts should be a priority. Mobile optimisation is all about making sure your website looks and works seamlessly on mobile devices.
If your site isn’t optimised for mobile devices, it may rank lower in search results. Most searches are now done on mobile devices rather than desktops. A poor mobile experience can lead users straight to your competitors, whilst user-friendly mobile sites keep visitors engaged, resulting in improved rankings.
Voice and Image Search
Voice search has grown in the past few years; more and more consumers are using voice to perform search engine queries. Marketers need to prepare for a future where voice commerce plays a large role in consumer buying journeys. 56% of smartphone users rely on voice search to find information, as voice search is a preferred option for those who are always on the go; voice assistance also helps people multitask. Taking steps to integrate voice search optimisation into the overall SEO strategy is important for businesses to remain visible in voice search results.
One of the most transformative innovations reshaping the landscape in 2025 is visual search. With the rise of AI-powered algorithms and image recognition technology, visual search is revolutionising how users interact with content online. Visual search is a game changer for SEO; search engines now use advanced computer vision to analyse image content directly. Your visual assets need to be optimised beyond metadata to rank in visual search results. To help ranking, your images should be high-quality, use descriptive file names and detailed alt text.
Quality content is the most important SEO factor. Google wants to show users high-quality, informative, and relevant content. Google is raising the bar on high-quality content and has made changes to its search algorithms. Content that is engaging, trustworthy, and answers the search intent is more likely to come up. The latest Google algorithm changes hint that human-like content will be favoured over AI-generated pieces.
How Different is SEO in 2000 compared to SEO in 2025?
SEO was much less complex than it is today. To optimise a website earlier on, all you had to do was update the meta-data of the website to rank highly by putting in the title tag, meta-description and meta-keywords. In the early days, high-quality content was also not considered a ranking factor; instead, stuffing in as many target keywords as possible into the content was more important.
This means that most of the content on websites was incoherent, which didn’t matter as the website was ranked at the top of the search engine. From an SEO point of view, there was little to no benefit to publishing content like it is today. Links, however, have always been one of the biggest ranking factors throughout the years, and even today, they’re still a vital part of ensuring websites rank.
SEO today has shifted towards a more user-centric approach, focusing on delivering valuable, relevant and engaging content whilst ensuring a smooth browsing experience. Rather than stuffing content with keywords, modern SEO emphasises understanding user intent and incorporating keywords naturally.
Content marketing has become a cornerstone for modern SEO, producing comprehensive, well-researched and insightful content. SEO is shifting towards a more user-centric digital landscape, and adapting to these changes means your businesses will be positioned to succeed and maintain a strong online presence in the competitive market. Understanding the overall key differences between the old and new SEO methods is important in order to maintain and improve online visibility in 2025.
History of Google’s Algorithm Updates
SEO has changed dramatically over the last decade because Google has continuously updated its algorithms to improve search results. These updates are made to understand user intent better and reward high-quality content. From foundational changes like Panda and Penguin to more recent updates that shaped how websites rank and how we approach optimisation.
Google aims to refine its search algorithm with a growing focus on AI-driven search experiences. In its early years, Google only made small changes to its algorithms. Now, Google makes thousands of changes every year to its algorithms to improve the accuracy and quality of its search results in order to enhance user experience and prioritise content that aligns with user intent.
The Future of SEO
The future of SEO is evolving rapidly. Staying ahead of emerging trends is vital for businesses to maintain and improve their online visibility. As mentioned, multiple times earlier, artificial intelligence is transforming the way search engines operate. AI is expected to play a significant role in delivering more personalised and efficient search experiences.
User experience has always been important, but in 2025 and the years ahead, it will become even more critical as a ranking factor. Websites that offer seamless and engaging user experiences are more likely to rank higher in search results. A focus on structured date, schema markup, and featured snippets will also be essential for improving visibility in search engines.
In Summary
In conclusion, SEO has changed in the past 20 years, and it is constantly evolving to achieve a better user experience and success. Focusing on enhancing user experience, embracing the use of AI technologies and optimising voice and visual search whilst prioritising engaging quality content means that you are ticking off all the boxes in order to rank higher in website search. SEO continues to change, and there are predictions of it evolving further later on in the years, which is why it’s important to stay up to date in order to maintain online visibility and align with the future of search.
While the industry has been moving, so have we been at SQ Digital. As one of the first UK SEO agencies, we’ve continuously reviewed our approach to SEO. We've taken great pride in being ahead of the curve and keeping our finger on the pulse of the latest industry trends; we’ve also pioneered many SEO techniques that are still in use today.
As we invest more in technology and allow automation and machine learning to play a pivotal role in the future of SEO, it is exciting to see how our agency has been shaped for scale without compromising on quality and customer service.