Google is the search engine in the world. Every day billion requests and behind each result lies a complex system: the Google algorithm. In fact, it is constantly evolving to offer ever better results. more relevant to web users.
In this article, we'll find out what it's all about. Google's algorithmhow it works, what its main features are updates and how optimize your site to better meet its criteria.
What is the Google algorithm?
Definition
The Google algorithm is a complex set of mathematical rules and calculations that the search engine uses to sort and classify the billions of existing web pages. Its main objective is to provide the most relevant results and the better quality possible for every user in just a fraction of a second.
Why does Google use an algorithm?
With billions of web pages online, it would be humanly impossible to find relevant information without an automated ranking system. Google is facing a huge quantity to be useful and effective, it must deliver the best possible results in the shortest possible time. record time.
Google therefore needs an automated system to :
- understand your search (even if poorly formulated or imprecise);
- analyze available contents on the web ;
- sort web pages to keep only most relevant ;
- classify results according to their usefulness, reliability and relevance.
In this way, Google can offer rapid experiencereliable to users with quality.
The algorithm: more than just a ranking system
Google's algorithm goes beyond simply ranking web pages: it evaluates the content qualitypage relevance and the user experience they offer. It takes many criteria into account: the words used on the page, site speed, quality of incoming links, mobile compatibility and many others.
With the evolution of artificial intelligence, Google's algorithm is becoming increasingly "intelligent": it has a better understanding of the natural languagethe context of a query, the research intentions the userand content that's actually useful. Its aim is to provide the right answer, at the right time, to the right person.
How does the Google algorithm work?
The three key stages: crawling, indexing and ranking
To display the right results for each search, Google's algorithm is based on a well-structured three-stage process: the crawling, indexing and the classification. These steps enable Google to discover, understand and prioritize the content available on the Internet.
Crawling: exploring the web
Visit crawling corresponds to explorationThis is the first step. Google sends robots, called Googlebotsto browse all the pages accessible on the Internet. These robots navigate from link to link, discovering new web pages or checking for updates to old ones. Good internal linking and a clear structure help Google crawl a site more efficiently.
Googlebots take into account :
- visit internal links between pages on a site ;
- visit external links pointing to the site ;
- the robots.txt file which indicates which web pages should be explored or ignored.
Indexing: organizing information
Once a page has been explored by the Googlebotsthe second step is indexing. This means that Google analyzes its content and decides whether or not to store it in its giant database, called the "Google index.
During this phase, Google's algorithm tries to understand several elements:
- what the page is about;
- what are the key words important ;
- what is its structure (titles, subtitles, images, links...) ;
- if the content is useful, original and quality.
If the content is clear, well structured and in line with best practice, the page is added to Google's index. This means it can now appear in search results.
Ranking: determining the relevance of results
It's during the last stage, the classification that Google's algorithm must choose which web pages to display in response to a query, and in which order. When a user enters a query in the search bar, Google analyzes the web pages in its index and selects those that are most relevant to the user. are best suited to this research. It evaluates hundreds of ranking factors to determine which page is the most relevant, the most reliable and offers the best user experience.
Key signals used by the algorithm
Relevance of content to query
For a page to be well classifiedAbove all, it must answer the user's question directly and completely. The algorithm analyzes the semantic field content, i.e. all terms and expressions related to the subject. It evaluates whether the page covers the subject in depthif it provides complete information and anticipates any questions the user may have after the initial query.
Content quality: E-E-A-T (Expertise, Experience, Authority, Trust) for natural referencing
Google's algorithm attaches great importance to the quality and reliability of content. To achieve this, it relies on the principle of E-E-A-T, which means :
- Expertise You have to show that you have mastered the subject by going into great depth;
- Experience Sites that offer visitors a pleasant experience are valued;
- Authority It is based on the recognition of your site as a reference in your field;
- Trust your site must inspire confidence by being reliable and secure.
Respecting these principles means improve the quality of the content offeredand thus its natural referencing.
User experience (UX): speed, ergonomics, mobile-first design
Google wants Internet users to have a clear seamless experience and pleasant on the sites it recommends. This is why it takes into account criteria related to the user experience :
- loading speed : a slow-loading site frustrates users and increases the bounce rate;
- mobile optimization : the mobile version of the site is given priority in the evaluation;
- ergonomics : navigation must be simple and intuitive;
- accessibility : content must be easy to read, well structured, with clear headings, optimized images and visible calls to action.
Backlinks: reinforce quality and relevance
Visit backlinkslinks are links from other websites pointing to yours. For Google's algorithm, this is a confidence signal If other sites recommend you, it's probably because your content is useful and relevant.
You have to be careful, because not all links have the same value, Google's algorithm focuses on :
Visit link quality : get a backlink from a recognized site in your field will have far more impact than a backlink from a directory, for example.
Visit thematic relevance : a link is stronger if it comes from a site that deals with a similar or complementary subject to your site.
Visit natural links : when your content is deemed relevant and is cited by others. Attempts to manipulate your content by buying links or otherwise are detected and may result in penalties.
The importance of voice search and conversational queries
More and more Internet users are using voice search (Google Assistant, Siri,...). This changes the way queries are formulated: they become longer and more natural.
For example, instead of saying "yogurt cake recipea user could potentially say "How do you make a yoghurt cake?" .
So try adapt content to natural language This can be done by integrating questions and answers into pages (FAQ), and/or by targeting specific expressions. long called long-tail keywords.
History of major Google algorithm updates
Major updates and their impact on SEO
Google's algorithm is constantly evolving, Google makes small adjustments several times a year. However, from time to time, it implements major updates which completely change the way sites are classified. This forces site owners to adapt their strategies. These updates are always aimed at improving the relevance and quality of results for the user.
Panda: the fight against low-quality content
Launched in 2011, the Panda aimed to penalize sites offering poor-quality content, often created solely to attract traffic, without really meeting user needs.
Panda attacks :
- at duplicate content or very similar ;
- pages with very little useful text ;
- with pages full of keywords without logic ;
- to the pages filled with advertisements to the detriment of the main content.
This update to Google's algorithm has forced sites to focus on quality rather than quantity, by ensuring the depth, originality and relevance of their content.
Penguin: penalizing artificial links
Before Penguin, many site owners used "black hat SEO creating or purchasing a large number of low-quality backlinks or unrelated to their field of activity to artificially increase a site's authority. The Penguin update is designed to combat these abusive practices.
Penguin has enabled Google's algorithm :
- to ignore poor quality links ;
- to detect unnatural link patterns ;
- to encourage the acquisition of organic, contextual and relevant.
Hummingbird: the era of semantic search
In 2013, the Google algorithm implemented the update Hummingbird. This involved a complete overhaul of its algorithm to better understand the overall meaning of a query, and not just the keywords that make it up.
With Hummingbird, Google's algorithm begins to analyze the semantic context of a searchand the relationship between words in a sentence.
RankBrain: integrating artificial intelligence
The update RankBrain integrates artificial intelligence in Google's ranking system. Its main role is to help Google interpret search queries. complex or ambiguousThis is particularly true of queries that Google has never encountered before. RankBrain uses AI to associate these unusual queries with similar queries that are already known, and to identify web pages that are likely to be the most popular. the most relevant.
Mobile-first indexing: making mobile optimization a priority
As of 2018, Google has officially adopted mobile-first indexing. This means that the algorithm now evaluates the mobile version of a site in priority to determine its ranking. This change was made because thehe majority of searches today are carried out from a smartphone. Google therefore wants to ensure that the web pages it offers are readable, fast and easy to navigate. functional on mobile.
BERT: a better understanding of natural language
After RankBrain, Google continued to invest in artificial intelligence to refine their understanding of language. The update BERT was deployed in 2019 and represents a major step forward in Google's ability to interpret the nuances of human language.
In concrete terms, thealgorithm BERT helps Google interpret :
- expressions complexes ;
- visit prepositions ("for", "with", "in") often overlooked by older Google algorithms;
- long requests and conversational.
Core Web Vitals: the importance of user experience (UX)
Integrated in 2021 as official classification factors, the Core Web Vitals are three indicators that measure user experience on a site, including :
- the loading time of the page's main element;
- the page responsiveness when a user interacts ;
- the visual stability during loading.
These technical indicators ensure that the web pages proposed by Google offer a smooth, fast and pleasant experience, 3 characteristics of a quality website.
Helpful Content Update: focus on useful and relevant content
Launched in 2022, the update Helpful Content is designed to reward sites that produce content for Internet users. It aims to promote genuinely useful content, who answer web users' questions directly.
On the other hand, sites that are written for SEO purposes only (e.g. overoptimization of keywords), that don't provide a clear answer to the user, that are too general or repetitive compared to others that already exist are penalized by Google.
Regular, unannounced updates: understanding Core Updates
In addition to the major updates announced, several times a year Google rolls out Core Updatesi.e. global improvements to its algorithm. Unlike other updates, such as Panda or Penguin, Core Updates are not targeted at a specific point, but rather are more general and aim to improve the overall algorithm.
Optimizing your site for the Google algorithm: a practical guide
Focus on content quality
Visit natural referencing (SEO) is above all based on quality content. This is what Google analyzes to determine what your page is about, who it is for, and if it deserves to be highly ranked.
Meeting user needs
Your first objective should always be to respond to the user's search intent. Before you even start writing, ask yourself what your audience is really looking for when they type in the query in question, and how you can provide it. a clear, comprehensive and useful response.
Integrate relevant and natural keywords
The integration of keywords is still important for Google to understand what your page is about, but their use must be natural and contextual. To do it right :
- identify key words wanted by your target audience;
- use them in titles, subtitles and body text, without over-optimizing;
- think about broader lexical field synonyms, related expressions, associated terms.
Using SERPmantics for content quality
The tool SERPmantics is the key to quality websites. It helps quality content writing to meet the criteria of search engines (in particular Google and Bing) and respond to Internet users' search intentions. Among its features, the :
- gives recommendations for elements to be integrated in your content so that it is optimized: word count, titles, paragraphs, links, images, videos, tables and lists;
- suggests a list of keywords to insert into your content using a keyword ;
- identifies the main search intentions for a keyword ;
- generates titles, meta descriptions and a structured content plan from Google's top search results and search intentions;
- allows compare with initial search results Google.
Structure your content for better readability
Have a structured content makes it easier for Internet users to read, which helps to improving the user experience. It also helps Google understand the organization and hierarchy of your information.
Here are a few recommendations:
- use securities H1, H2, H3hierarchical ;
- air out the text with short paragraphs ;
- highlight key ideas (bold, bulleted lists, boxes) ;
- add illustrationsdiagrams or videos if relevant;
- include a table of contents (with clickable links) for long content, so that users can find what they're looking for quickly.
Improving the user experience
A site that offers smooth user experience, is not only appreciated by visitors, but also by Google's algorithm. That's why it's important to optimize it.
Optimize site loading speed
A slow site frustrates users and pushes them to exit page before it's even fully displayed. This sends a negative signal to Google which penalizes this type of site. To optimize your website's loading speed, you can :
- use a high-performance hosting ;
- compress images using tools like Tiny PNG to reduce the size of your images without compromising quality;
- activate the lazy loadingIt gives priority to loading elements visible on the screen;
- activate the caching of the browser.
You can use the Google PageSpeed Insights to analyze the site speed and identify areas for improvement.
Ensuring mobile compatibility
With the majority of searches carried out on smartphones and mobile-first indexing, a website not adapted to cell phones is at a serious disadvantage. Here are a few things to check:
- if the site is responsiveIt automatically adapts to all screen sizes;
- if the text is easy to read without zoom ;
- if the buttons are easily clickable on mobile ;
- if the images are adapted to small screens ;
- if navigation remains fluid and intuitive on mobile.
Intuitive navigation allows users to quickly find what they're looking for. It also facilitates Google crawling. Here are the elements that can simplify site navigation:
- create a clear tree structure : users must be able to reach any page in less than 3 clicks;
- create a well-organized menu ;
- propose a breadcrumb trail to make it easier for users to navigate between the different pages of the site.
- set up a internal search barespecially if the site is large.
Building a quality link strategy
Acquire natural, relevant backlinks
As we saw with the Penguin update, quality of backlinks takes precedence over quantity. Here are some ways to get backlinks:
- create useful content that will encourage content creators to mention you;
- make guest blogging This involves writing blog articles for other well-known sites in your field, in exchange for a backlink.
- make partnerships with complementary sites to exchange backlinks.
Backlinks from reliable siteswith a certain authority in your field of activity.
Take care of your site's internal links
Visit internal networking corresponds to the links between the different pages of your website. It's important to integrate links naturally into content. It's also preferable to use explicit link anchors (rather than "click here"). Properly optimizing your site's internal linkage allows you to :
- help engines to explore and understand the structure of your site ;
- reinforce the thematic relevance of certain pages;
- to guide visitors to additional content ;
- from distribute SEO authority between pages.
The tool SERPmantics offers a specific internal link feature designed to improve your website's SEO. It will indicates which links are relevant to insert on a page.
Monitor site performance
The SEO optimization of a site is done in the following ways continues It's a long-term process. To remain well positioned in the search results, it is important to regularly monitor SEO performance and adjust your strategy according to results and changes in the Google algorithm.
Analyze organic traffic and its evolution
Visit organic traffic represents the number of visitors arriving on your site via search engines, without using paid advertising.
Google Search Console gives you information directly from the search engine. You can see :
- the search queries on which your site appears and those that generate clicks;
- your average position on these queries ;
- the number of prints (how many times your site was displayed in search results) and the click-through rate ;
- visit exploration problems or indexing problems that Google may have encountered on your site.
Google Analytics allows you analyze user behavior once they're on your site:
- number of users from organic traffic ;
- average time spent on pages ;
- the bounce rate (percentage of visitors who leave your site after having only
- consulted only one page);
- the user journey ;
- conversions (sales, registrations, downloads, etc.).
Identify areas for improvement
Analysis of SEO performance allows you to identify what's working well and, above all, what can be optimized on your website.
For example, if a page attracts traffic but has a high bounce rate, it may not be responding well to search intent. If certain pages on your site are no longer indexed, a technical problem or crawl error may be the cause.
It is recommended to conduct a regular SEO audit of your site with SEO tools (e.g. Screaming Frog, SEMrush or Ahrefs) to detect anomalies or opportunities.
Adapt your strategy to algorithm updates
As we have seen, Google's algorithm is constantly evolving. Core Updates and smaller updates can have an impact on search rankings. That's why it's important to stay informed about official Google announcements, in particular via the Google Search Central blog or their X account.
Conclusion
Finally, the Google algorithm is much more than a simple filing tool; it's a system that's constantly evolving to offer the best possible user experience. Over the years, Google has refined its ranking criteria through numerous updatesThis is the result of the progressive integration of artificial intelligence, natural language understanding, user experience and contextual relevance.
Updates Panda, Penguin, RankBrain or even BERT show that the simple overoptimization of keywords or the accumulation of artificial links are no longer enough. To be well referenced Today, a site must offer quality content, respond precisely to research intentions be fast, mobile-friendly, well-structured and user-friendly. inspire confidence. Various SEO tools can help you achieve this. So SEO isn't just a question of technique, it's also a process user-centrichis research and experience.
Finally, SEO is a work over the long term. It requires regularityactive monitoring of algorithm developments, and a constant desire for improvement.
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