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A constantly changing landscape
SEO (the work that helps a site show up in search results) is never really finished, because Google's algorithm — the system that decides which pages to show and in what order — keeps changing. It's not a whim: every update is meant to show users more relevant, trustworthy results, and to penalize those trying to game the system with shortcuts.
Ignoring these changes isn't a neutral choice: it means risking positions you worked hard to earn, sometimes without even understanding why.
The key milestones of the last 5 years
Here are the updates that have had the biggest impact on how Google evaluates a website, explained without jargon:
- Core Updates (ongoing) — periodic releases that don't target one specific aspect, but improve the algorithm's overall ability to recognize authoritative, trustworthy, quality content. Sites with weak information, or claims not backed by credible sources, tend to lose ground after a Core Update.
- Mobile-First Indexing (fully in effect since 2020-2021) — from this point on, Google evaluates a site by looking primarily at its mobile version, not the desktop one. A site not optimized for smartphones starts at a disadvantage.
- Page Experience Update (2021) — introduced "Core Web Vitals," metrics that measure how fast a page loads, how responsive it is, and how visually stable it is (no elements jumping around right as a user is about to click).
- BERT (2019) — improved Google's ability to understand the meaning of a sentence as a whole, not word by word. It rewarded content written naturally, aimed at genuinely answering a question.
- MUM (announced in 2021, still evolving) — an even more advanced model than BERT, able to understand information across multiple languages and formats (text, images, video). Its full impact on rankings is still taking shape.
- Helpful Content Update (since 2022) — penalizes content written mainly to please search engines rather than to genuinely help people. It rewards originality, depth, and real usefulness.
- Anti-spam updates (ongoing) — target manipulative practices like link spam, keyword stuffing (forced repetition of keywords), and low-quality auto-generated content.
The numbers that actually matter
Over half of global web traffic today comes from mobile devices (source: StatCounter). That's why Mobile-First Indexing isn't a minor technical detail: if your site doesn't work well on a smartphone, you're likely disappointing more than half of your visitors — and Google notices.
On speed: Akamai research found that even a one-tenth-of-a-second delay (100 milliseconds) in page load time can reduce conversions by up to 7%. You don't need a painfully slow site to lose customers — a few extra instants are enough.
How to adapt your strategy
Understanding how the algorithm has changed isn't enough: you need to turn that into concrete action. Here's where to start:
- Useful content firstWrite for the person reading, not for the algorithm: genuinely answer your audience's questions, with depth and originality.
- Mobile optimizationMake sure your site works perfectly on smartphones: responsive design, fast loading, intuitive navigation.
- Page experienceWork on your Core Web Vitals using tools like Google PageSpeed Insights to find what's slowing the site down.
- Authority and trust (E-A-T)Show your expertise with well-documented content, citing credible sources and being clear about who wrote what.
- Solid technical SEOMake sure your site is easy to crawl: clear structure, a correct robots.txt file, an up-to-date XML sitemap, canonical tags used properly.
- Quality link buildingAim to earn links from authoritative sites relevant to your industry, and avoid manipulative practices that can backfire on your ranking.
- Ongoing monitoringUse Google Analytics and Google Search Console to understand how the site is performing and where to step in.
Strategies built on shortcuts and manipulation are bound to fail in the long run: Google keeps getting better at spotting them. An approach that puts the people reading first, instead of the algorithm, remains the safer bet.
Frequently asked questions
Often it's the algorithm that changed, not your site. A Core Update can re-evaluate the entire web against new quality criteria: if your content is weaker than competitors' on those criteria, you can lose ground even without having done anything wrong before. They're three indicators that measure the real experience on a page: how quickly the main content appears, how quickly the site responds to a click or tap, and how visually stable it stays while loading. Yes, in the sense that it's worth writing naturally, the way you'd talk to a person, instead of forcing in keywords. These systems understand the meaning of a sentence as a whole, not isolated words. Generally a few months, since Google needs to re-crawl and re-evaluate pages first. There are no reliable shortcuts to speed this up.Why did my site lose rankings even though I didn't change anything?
What are Core Web Vitals, in plain terms?
Does AI in Google's algorithm (BERT, MUM) change how I should write content?
How long does it take to see results from an updated SEO strategy?
Is your site struggling to get found?
The I.T.S. Planet team tracks how Google's algorithm evolves and builds SEO strategies that stay current, with no risky shortcuts. Let's talk about your site.
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