What is SEO? Everything about SEO and SEO careers

SEO là gì (What is SEO) that makes every business, from startups to large corporations, invest in it seriously? According to a BrightEdge report, more than 53% of website traffic comes from organic search. That means if you do SEO properly, you open the door to millions of users right when they actually need you. So what is SEO, why keep doing it, and does it still work as AI develops so quickly?

For anyone who wants to do smart, lasting marketing and SEO, the article below from MONA Media will help you understand SEO from A to Z: from what website SEO is and how it works, to the thinking and latest trends behind it today.

What is SEO in marketing?

SEO is short for Search Engine Optimization, which means "optimizing for search engines". In the SEO trade, it is also the name of a job title, "Search Engine Optimizer". 

So what does web SEO involve? In marketing, SEO is the process of improving and optimizing a website to meet the ranking criteria of popular search engines such as Google, Cốc Cốc and Bing. The goal of SEO is to help raise your website's visibility on search results pages, and from there attracts organic traffic and potential customers,, along with brand building and builds trust.

Where SEO results appear on Google

Common SEO concepts, by type

SEO is split into several types of strategy, and each one serves a specific business goal. Knowing the types below will help you run an effective campaign and reach the end goal of online marketing.

SEO Branding

SEO Branding is SEO focused on building and strengthening a brand. Done the right way, it helps customers remember your brand, builds a trusted image and lifts your keyword rankings on SERPs.

SEO Sales

Also called e-commerce SEO, SEO Sales aims to raise revenue by optimizing the website and product content. When customers keep coming back to find quality information, they gradually become loyal customers, and the business saves on traditional advertising costs.

SEO done this way does more than improve keyword rankings. It creates chances to connect with customers and keep them for the long term, which shows the role SEO marketing plays in modern business.

SEO Trends

SEO Trends is SEO built on current trends and predictions of future ones, from hot topics on the internet and social media to popular TV shows. The aim of SEO Trends is to let a business capture the large traffic that trending topics bring, and to establish its standing in its field by quickly updating and optimizing related content.

SEO Traffic

SEO Traffic is about optimizing a website's traffic to attract the right audience. That traffic can come from several sources: direct visits (Direct Traffic), referral sites (Referral), social networks (Social) or search engines (Organic Search). When SEO is done properly, the website reaches the right potential customers, raises its conversion rate and delivers real results for the business. 

SEO Crisis

Sometimes a website suddenly loses rankings or traffic. This is an SEO crisis (SEO Crisis). The cause can be content errors, bad backlinks or changes to Google's algorithm. To fix it, a business needs to review and correct faulty content, remove toxic backlinks, optimize the whole website and report the changes to Google.

At the same time, you should also develop a new website alongside the current one, to keep your web SEO performing without interrupting your business.

How Google works

Google's process

Every day Google handles more than 8.5 billion searches, which is about 5 trillion searches a year, 373 times more than ChatGPT. A proper SEO strategy will get your website chosen from among millions of results. To build a complete SEO strategy that meets the algorithm, you need to understand the basic process behind Google SEO.

Crawling

Google automatically gathers information from web pages

This is the first step in how the Google search engine works. Automated programs called Googlebot scan and discover billions of web pages on the internet.

Googlebot mostly finds new content by following links (URLs) that Google already knows about. It keeps visiting, reading content and saving the pages it finds to a list for further processing.

Google currently uses two main types of Googlebot:

• Googlebot Smartphone
• Googlebot Desktop

-> Read more: What is crawling? The role of crawling in SEO

Indexing

Google crawls a website, evaluates it and stores the information

After crawling, Google analyzes and stores the information on the website (including text files, images and video) in a huge database called the Index. This is where Google keeps all the important content it has "read and understood" from web pages.

More simply, picture the index as a giant library holding detailed information on billions of web pages. When a user runs a query, Google can quickly pull the most relevant results from this store.

-> Read next: What is the Google index? Ways to get your website indexed faster

Serving search results

Serving the results that best match the user's query

When you type a query into Google, the search engine checks its Index to find the pages with the most relevant content. The results shown on the first page are decided entirely by Google's algorithm and Google does not accept payment to rank pages higher in organic search results.

Which results Google shows first depends on many factors, including your location, language settings, device type and even the phrases you searched for before. For example, when you search for "good restaurants" in Hanoi, Google will favor highly rated restaurants located near where you are.

In addition, to better understand user intent and search context, Google keeps applying powerful technologies such as artificial intelligence (AI), machine learning and natural language processing (NLP).

Why does SEO matter in online marketing?

Builds brand recognition and credibility

When your website keeps appearing at the top of Google for searches related to your industry or services, your brand gradually becomes familiar and sticks in users' minds. More importantly, customers tend to trust and think highly of brands that lead the search results. A highly ranked website combined with a professional experience once they click through builds the image of a trusted, reliable brand in your industry.

High rankings on Google widen your brand's reach and make customers remember you

Drives lasting sales

SEO is more than a way to get visits. Full-scope SEO also brings in the right potential customers. Some users are still looking up information and comparing products, while others are ready to buy and only need a trusted place to do it. When your website shows up at the right moment for the right query, you reach the customers most likely to convert. A steady flow of customers from organic search keeps growth stable without depending entirely on paid ads.

The right SEO strategy attracts a base of potential customers

Measurement and analysis

The data you analyze lets you adjust how you reach and attract customers

SEO's biggest advantage is that you can track and measure your website's performance in detail. With tools such as Google Analytics and Google Search Console, you can see the key numbers on your site, from direct business results (rankings, traffic, conversions, revenue) to technical and process factors (page speed, backlinks, user engagement).

This data also helps decode customer behavior on your website. By analyzing how they interact, what interests them and where they leave, you gain useful insights into who your customers are and can make the right improvements.

Example:

• A customer adds a product to the cart but leaves before paying because of extra costs such as shipping or VAT, or because they lack the push to complete the order.

→ Send an email or message reminding them of the order, with a voucher code or a "pay within 24 hours and get a gift" offer.

• A customer lingers on the "Return policy" section and then leaves. This shows they are not yet reassured and fear the risk after buying.

→ Write the policy in more detail, add illustrations, and include an FAQ section or live chat support.

• A high bounce rate on a product page because it lacks convincing information such as reviews, real photos and customer feedback.

→ Add customer reviews, real photos sent in by users and short review clips. You can also add a "Frequently asked questions" section to address buyers' hesitations.

Lays the groundwork for a remarketing strategy

Traffic from SEO can be remarketed to raise your customer conversion rate

When SEO puts your website at the top of search, you do more than attract people who want to learn about your products or services. You also build up a pool of potential customer data. These are users who have shown initial interest, and that gives you a solid base for running remarketing campaigns effectively.

The users SEO brings in, who have already visited your website, are the ideal audience to follow up with the right remarketing ads, reminding them of your brand and encouraging them to come back and finish what they started.

Some remarketing methods that work well with SEO:

• Facebook Remarketing: When users reach your website from SEO results, you can use the Facebook Pixel to remember them, track their behavior and show them personalized ads on Facebook. This raises the rate of return visits and conversions from audiences who have shown interest. 

Facebook Remarketing

• Google Ads Remarketing: For users who visited your website but did not act right away, you can show image or text ads through the Google Display Network (GDN) or search results (RLSA).

Google Ads Remarketing

• Tiktok Remarketing: If your website targets Gen Z, you can set up the TikTok Pixel to track behavior and then run remarketing videos on that platform. It is an effective way to stay in front of people who have visited your website with livelier content, to remind them of your brand and prompt action.

Tik Tok Remarketing

To see what SEO does in marketing, take a look at the project MONA did with Saigon Outdoor

• CASE STUDY: MONA X SAIGON OUTDOOR

Starting as a spin-off brand with no place on the search map, Saigon Outdoor shows that SEO can create real value, in both website traffic and customer trust. See how a trusted SEO agency MONA Media ran an overall SEO strategy that took the website saigonoutdoor.vn to impressive traffic growth and keyword rankings in just 4 months.

The 2026 process for getting a website to the top of Google

As Google keeps updating its algorithm and AI develops, today's SEO process needs constant fine-tuning and adaptation. As leading experts note, rather than focusing on single techniques, modern SEO is the sum of user experience, quality content and and solid technical optimization. So what is web SEO, and how do you do it to the proper standard? Read on:

User research and analysis

Gather and research user information from many different sources

Theo Phil Frost, effective SEO is not about "tricking Google" but about working with Google to give users the best search results. So if you want full-scope SEO to succeed, first understand exactly which customers you serve, then build a detailed user profile and analyze their search intent.

So how do you collect accurate information for your web SEO strategy?

• Analyze the data you already have through Google Analytics 4 and Google Search Console.
• Look for information from sources beyond Google, such as social networks, YouTube, magazines and newspapers.
• Use tools such as Ahrefs, SEMrush and SimilarWeb to see which keywords are trending at the top.

Design a website that works well on desktop and mobile

A website that displays well on every device

A smooth, optimized experience for users on any device is no longer a trend or an option but a required standard. With more than 60% of web traffic coming from mobile devices, Google has adopted a "Mobile-First Indexing" policy, giving priority to mobile content and experience when ranking search results.

To make your website work well on both desktop and mobile when you start SEO, follow these principles:

• Use responsive design to create a flexible layout that adjusts automatically to the screen size.
• Optimize images, compress code and use a CDN service to improve page load speed.
• Use a hidden (hamburger) menu to save space, design large, clear buttons and put the search bar where it is easy to see.
• Optimize fonts and content so they are easy to read and interact with on small screens.
• Use Google's Mobile-Friendly Test to check your website and get suggestions for improvement.

Build useful, user-focused content

Every effective SEO content strategy has to revolve around real value for the user. That is why Google stresses: "Create helpful, reliable, people-first content."

For your content to reach the top, stay in readers' minds and fully solve the problem they are searching for:

• Focus on solving the problem and meeting the user's search need exactly, with clear, readable, well-structured content rather than writing only for search engines.
• Provide accurate information backed by evidence and cited from reputable sources (including external links, which Google encourages).
• Produce original content with its own character that offers distinctive value or a fresh perspective.
• Work keywords and related terms into the structure of your article sensibly and naturally, so Google understands the context without hurting the reading experience.

According to Semrush, pages with long, highly useful content of 1,200 to 2,000 words tend to hold readers 32% better than short, generic articles.

Build backlink assets to stay competitive

Natural backlinks are valued highly by Google

With Google constantly updating its algorithm and cracking down hard on spam, building a high-quality backlink profile has become a key factor for raising a website's rankings and credibility. According to a report from Digiyuni, websites that use unnatural linking tactics can be penalized by Google's new AI-based link evaluation techniques.

So what are effective ways to build backlinks for a Google SEO campaign?

• Guest Blogging 2.0: Publish articles on high-authority websites with related content, making sure the article is original and genuinely valuable.
• Broken link building: Find broken links on reputable websites and suggest replacing them with links to your content.
• Infographic submission: Create and share engaging infographics on infographic-sharing platforms to attract natural links.
• Social bookmarking: Share content on social bookmarking sites to increase visibility and attract links.

CASE STUDY: MONA X KIM KHÍ TIẾN THÀNH

Although it sells quality screws and fasteners in a field with big potential, Kim Khí Tiến Thành's website had struggled online, so the brand was not positioned as well as it deserved. MONA stepped in with a full Google SEO strategy, restructured the whole website and improved content quality and visibility on Google. Thanks to MONA's search engine SEO approach, Kim Khí Tiến Thành expanded its target market and raised its conversion rate.

Challenges of doing SEO today

What makes website SEO difficult?

Google keeps getting smarter, users keep getting pickier and the market keeps getting tougher, so Google SEO today is no longer a matter of "get the technical side right and you reach the top". These big challenges mean SEO marketing strategies need to be flexible and seriously funded.

SEO marketing takes a long time

SEO results take 6 to 12 months on average

Most SEO specialists agree that it takes 6 to 12 months to see clear results from an SEO campaign, especially in highly competitive fields. For a new website, or one without much trust yet, it can take longer, because quality content and a reputable link profile have to be built first. 

However, once you reach a high position in search results, Google SEO delivers lasting, long-term benefits for your business. So set your long-term goals clearly, invest in quality content and stick with your strategy to get the best results.

Competition from rivals

SEO is not a race you run alone. While you optimize content and build links for your website, your competitors are doing the same, and sometimes doing it better. If you do not keep updating your strategy and refreshing your content, your rankings will quickly be overtaken, especially in highly competitive industries such as finance, technology and e-commerce.

The complex changes to algorithms in the AI era

Constant Google algorithm updates and AI's involvement affect SEO

One of the biggest and most constant challenges for SEO marketers in 2026 is the endless change in Google's algorithms, which has now become even more complex with the integration of AI. The arrival of Search Generative Experience (SGE) is the clearest sign: users get a complete AI-written answer without clicking any link.

Meanwhile, Google's Gemini 2.0 model is getting more sophisticated at handling natural language, which raises the bar for content: it must be accurate, deep and useful from the very first line. To avoid being left behind by AI, a full-scope SEO strategy needs to focus on high engagement, optimizing not only for search engines but for users themselves.

The latest SEO trends 

As these challenges show, Google's "rules of the game" keep shifting, especially in the AI era. If you stick to old habits you will not keep your results, let alone break out and lead a competitive market. SEO is not dead. It has only changed how it works, and it asks you to truly adapt to the latest trends.

SEO trends that will catch Google's eye

Improve user experience (UX)

User experience is no longer a side factor. It is now central to effective SEO. Google increasingly favors websites that give a smooth, pleasant and genuinely useful experience, because that reflects a page's quality and trustworthiness.

Optimize UX to keep users on your website longer

To improve UX and optimize for search engine SEO, a business should focus on these areas:

• Page load speed and Core Web Vitals (According to a Google report, 53% of users leave if a site takes more than 3 seconds to load).
• The website must display and work perfectly on every device, from desktop to phone and tablet.
• Intuitive navigation, a clear site structure and an effective internal linking system.
• Use suitable fonts, sufficiently large text, sensible line spacing, clear headings and good formatting.

User-focused content

2026 SEO trends are changing how content is made, because the focus is no longer on plain search engine optimization techniques but on creating real value and meeting users' needs. An article should not be produced mechanically by "rehashing" the top results, adding a few points and stuffing in keywords, because today's AI tools can generate masses of similar content that lacks depth.

More importantly, it is users who buy from you, not search engines. When they search, they always want the most relevant and useful results. So to keep readers, build trust and drive conversions, get up to date with the latest content trends before AI replaces your old habits. 

Google once said in a post: "There are trillions of searches on Google every year. In fact, 15% of the searches we see every day are new. That means we always have more work to do to give people the best answers to their queries from many legitimate sources. While our search results will never be perfect, we are always committed to maintaining your trust and making sure our products stay useful for everyone." This also shows why it matters to keep reviewing and updating your content so it reflects the latest information and trends for readers.

Use AI as a capable assistant

AI is a capable assistant, not a full replacement for people

Bringing artificial intelligence (AI) into the SEO marketing process is now widespread. From keyword research and trend analysis to content creation, AI cuts the workload for people while improving speed and accuracy.

Still, AI is only a support tool. It cannot fully replace human strategy and creativity. Artificial intelligence gives us a clearer view of the data and helps optimize tasks, but strategic decisions and the emotional side that users feel still need SEO experts.

There is no denying that AI has had a big effect on traditional SEO, as many users now turn to AI instead of typing keywords into Google. To stand out, a business needs to find the best way to appear everywhere, any time customers search. If you want to upgrade your SEO strategy, to improve rankings in AI Overview, MONA is ready to work with you. 

So why choose SEO AI with MONA Media and not another provider?

• Content that AI reads, understands, summarizes and cites naturally to the right target users.
• More chances to appear in AI Overviews, conversational results and voice search.
• A better visiting experience that keeps users longer and raises real conversions.
• Staying ahead of smart search trends and helping your brand lead the market.

MONA Media is a pioneer in applying AI SEO to content strategy and website technology. We have proven it on our own website and across many client projects. Contact MONA to build a lasting AI SEO strategy with you and take the top spot in the age of AI-powered search.

Optimize multimedia, multi-platform content

With each update, Google returns results in more formats

Beyond text, users spend more and more time engaging with images and video. In response, Google keeps diversifying the result formats on SERPs instead of the traditional 10 blue links. Google's SERP has become a multimedia picture, and if you only optimize text, you are missing a lot of visibility.

Here are ways to make good use of multimedia content:

• Optimize video and images: Use relevant keywords in titles, descriptions and ALT tags to improve visibility in search engines.
• Share across multiple platforms: Distribute video content on channels such as YouTube, TikTok, Facebook and Instagram to widen your reach.
• Create interactive content: Use interactive or shoppable video formats to raise engagement and conversions.

Raise content quality with E-E-A-T

SEO marketing content aimed at the E-E-A-T standard

When people ask what SEO involves, many immediately think of keyword optimization or backlink building. But according to John Mueller , Google's web trends expert: "Google always prioritizes helpful content, not content over-optimized for bots." 

Although they are not direct ranking factors, E-E-A-T is the set of signals Google's algorithm uses to identify and assess high-quality, trustworthy content. Content that is helpful, expert (E-E-A-T) and transparent is rated higher by Google, which helps a site rank better and build lasting credibility. 

In particular, the Experience factor shows that Google favors content based on real experience, such as product reviews from real users, over compiled knowledge or theory.

How do you show E-E-A-T?

• Include stories, examples and results from your own direct experience or from people with expertise.
• Provide accurate information and deep, comprehensive analysis of the topic.
• Cite reliable sources, show clear author information (Author Bio), and earn recognition or mentions from other reputable sources.
• Provide clear contact information, transparent policies and a secure website (HTTPS), and make sure the information is completely accurate.

These principles are the foundation of modern search engine optimization, where content quality comes first instead of simply chasing the algorithm.

As you can see, SEO is no longer a game of single keywords or large numbers of backlinks. If all you do is follow trends, can you keep up with these new updates? It is time for a properly planned strategy and a partner who cares and thinks big.

With more than 8 years of hands-on experience, MONA is a trusted strategic partner to businesses of all kinds, delivering professional, effective SEO solutions. We are always ready to work beside our partners and clients to reach their most important business goals.

MONA's results speak for themselves: SEO services at MONA:

• 300+ successful SEO projects across many fields, large and small.
• We commit to getting your website to the top of Google in just 1 to 3 months.
• More than 12,000 clients in Vietnam and abroad have chosen to trust us.

MONA does not focus on rankings alone. We optimize the whole picture, from content and technical work to backlinks, with the end goal of raising your purchase conversion rate and bringing real revenue to clients. With an experienced team that knows SEO inside out and keeps up with Google's latest algorithm trends, working with MONA makes your website a serious contender against thousands of other businesses.

It is never too late to upgrade your website, from design to content. With just one call to HOTLINE 1900 636 648, you will get a clear quote full-scope SEO quote and the best search engine optimization plan, the one that fits your goals and needs.

Google algorithms that affect search engine rankings

Google's algorithms remove low-quality results that do not serve users' needs

Your website's ranking can drop off page 1 of Google if you do SEO without understanding these search engine optimization algorithms:

• Panda: Deals with low-quality, copied and spam content.
• Penguin: Penalizes unnatural links and dirty backlinks.
• Pirate: Targets pages that infringe copyright or get reported often.
• Hummingbird: Blocks keyword-stuffed articles that miss the search intent.
• Pigeon: Improves local search and filters out Google Business Profile setup errors.
• Mobile Friendly: Removes pages that are not optimized for mobile devices.
• RankBrain: Assesses relevance and user experience.
• Possum: Filters duplicate results from the same location.
• Fred: Removes sites with heavy ads, junk content and nothing for the user.

Tools that support Google SEO

Apply tools that support your SEO strategy effectively

The business's SEO tools will give you useful data and insights, so you can make accurate strategic decisions based on evidence rather than gut feeling.

• Google Search Console (GSC): Track keyword performance and indexed URLs, spot technical errors and see how Google views your website.
• Google Analytics (GA4): Analyze user behavior in depth, with both web and app data.
• Google Trends: Knowing what users search for, where and when is an advantage for content marketing campaigns.
• Google Keyword Planner: Discover keyword ideas, see search volume and get ad group suggestions.
• SEMrush: Analyze competitors, do in-depth keyword research (difficulty, volume, intent), run site audits, track rankings, analyze backlinks in detail and more.
• KeywordTool.io: Suggests thousands of long-tail keywords based on autocomplete from Google, YouTube, Bing and others, which is very useful when writing SEO content.

Frequently asked questions about website SEO

1/ What does SEO stand for?

SEO stands for Search Engine Optimization.

2/ What does SEO do?

What kind of job is SEO? Put simply, doing SEO means fully optimizing a website so it appears in the highest position on search engine results pages (SERPs), especially Google.

3/ What is SEO writing?

SEO writing is the skill of creating content that serves readers' need for information and holds their interest, while also being optimized so search engines such as Google can easily understand it, index it and rank it high for related queries.

4/ What is web SEO?

Web SEO (Search Engine Optimization for a website) is the process of optimizing a whole website to improve its rankings on search engines such as Google, which increases organic traffic and the chance of converting customers.

5/ What does "SEO-friendly" mean?

"SEO-friendly" describes the criteria that make a website friendly to search engines such as Google while also meeting readers' needs.

A website or article is considered SEO-friendly when it covers factors such as:

• Helpful, high-quality content
• Sensible keyword optimization
• A clear website structure
• Effective technical optimization

6/ What is AI SEO?

AI SEO is the use of artificial intelligence (AI) to automate and optimize SEO strategies, helping a website improve its search engine rankings faster and more effectively.

7/ How long does SEO marketing take to show results?

SEO services in Ho Chi Minh City start to show results after about 6 months, but clear and lasting results take 12 months or more. SEO performance builds over time and depends on the strategy and the level of competition.

8/ Is doing SEO yourself effective?

Doing SEO yourself can absolutely work if you invest time in learning, practice patiently and keep up with Google's algorithm and new SEO trends. But for the best results in time, cost and outcome, you may want to consider help from a reputable SEO company .

9/ Should I choose SEO or run Ads?

SEO suits sustainable growth and builds long-term organic traffic for your website. Ads suit you if you need quick results and orders in the short term. The best approach is to combine both, so you have steady traffic and can push conversions when you need to.

We hope this summary from MONA has made clear what SEO is SEO là gì (What is SEO) in marketing, and what it stands for, and has given you a full view of this year's SEO trends. With the rise of AI, modern SEO is no longer a set of single tricks but an overall strategy that blends technical work, high-quality content and new updates. If you want your website to stay at the top of search but are not sure how, let MONA start with you.

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