What is search engine optimization?

What is SEO? Learn how search engine optimization works, its types, keywords, backlinks and simple steps to improve your website and rank higher in AI search.

Sandeep Bhandari By Sandeep Bhandari
In this guide you will learn:
  • Why is SEO important?
  • How Does Search Engine Optimization Work?
  • Where do AI search answers come from?
  • What are the types of SEO
what is search engine optimization

Search engine optimization (SEO) is the work that we do on our website. It helps search engines and AI-powered search results know about your site and show it to users who are looking for it. Do it well and your pages and blogs move up in the results. More users visit your site without paying for each click. In this blog, we explain what is SEO in detail, you will learn these things:

  • How SEO works
  • What its main types are
  • What keywords and backlinks mean
  • How to improve your own website
  • How to improve pages so they are picked by AI search tools

Key Takeaways

  • SEO means earning free visitors from search engines like Google and Bing
  • SEO covers things like the pages, the technical side of your site, what other websites say about you
  • There is no trick that beats a page that clearly answers a real question
  • SEO takes time. Most websites need a few months to see a clear change

What is SEO in marketing?

In marketing, SEO is one of the ways to bring customers to your business. It’s one more way to get customers, like social media or paid ads. The difference is that the person is already looking for something when they find you. For example, if someone is searching on Google by typing “dentist near me” it means he/she wants a dentist right now. If your clinic page is at the top at that time, the call or enquiry comes to you right when the person needs it. This all happens by following proper SEO strategy.

SEO is also popular because the work of maintaining pages well-written can bring visitors for months or years. On the other hand, a paid ad stops when your budget ends. Understanding the benefits of search engine optimization helps businesses plan their marketing efforts for long-term growth.

What is Website SEO?

In website SEO, we work on the whole website rather than only one page. It covers:

  • How your pages are organized
  • How fast they load
  • How they look on a phone
  • How they link to each other
  • How useful the content is on each page
  • And more that make your website easy to understand for search engines

Google ranks page by page, yes. But if the whole site is slow or messy, every page suffers. This is why website optimization is an important part of improving your website’s overall search performance.

Why is SEO important?

Nowadays you often see that if someone wants to learn something or buy a product or service. The first thing they do is search the internet. If your website isn’t in those results, you’re missing out on those customers. There are a few more reasons why SEO is important. Someone typing in Google already knows what they want. So they are often more prone to take action than people who just scroll on social media posts. When you run ads, the traffic stops the day you stop paying. Organic SEO don’t work like that. When your page achieves a good spot on Google. Visitors come and click. And that click costs you nothing. These are some of the key benefits of search engine optimization, especially for businesses that want to attract potential customers over time.

How Does Search Engine Optimization Work?

Let’s review the basics. SEO helps Google in three steps. First Google has to find the page. Second, Google has to understand what’s on it. Lastly, is the page worth being shown to the world? The first two steps are called crawling and indexing, the last step is called ranking. We’ll go over each step.

Crawling

Google uses small automated programs to move around the internet. People call them crawlers or bots, and Google’s bot is named Googlebot. It goes from one page to the next by following links, like a person walking through a market, shop after shop.

Let’s say you start a website for your bakery, with pages for cakes, bread, prices and contact details. Googlebot can reach it through a link on some other site, or through a sitemap you submitted. Then it opens your pages and reads whatever it is allowed to read. A sitemap is only a file that lists your important pages. That’s all it is.

To make crawling easier at, we usually start with these:

  • Keep the site structure clear
  • Link your pages to each other
  • Submit your sitemap in Google Search Console
  • Make sure no important page is blocked by accident

If Google can’t find a page, it will struggle to show it in results. Finding a page is one thing. Google may still not save it. That comes next.

Indexing

After crawling, Google reads the page. Text, headings, images, links, all of it. What it knows is stored in a very big database – the index. Like a catalogue of a very big library if that helps. Not every page makes it in. Pages that copy other pages, have almost no content, or are blocked can get skipped.

Say we look at the chocolate cake page of a bakery website. For instance, the first thing that Google can read can be the title, Chocolate Cakes in Chandigarh. It will see the flavours, sizes and prices written on the page, and your cake photos. It also checks which pages link here and if the page is helpful and opens without trouble.

Want better indexing? Start with a clear title on each important page. Write original content that really helps someone. Make it easy to find via internal links from other pages on your site. And check Search Console from time to time to see indexing problems and which pages Google didn’t index and why.

A crawled pages does not always an indexed page. Keep that in mind. Google makes that choice, not you.

Ranking

Ranking is just the order of pages on the results page after someone searches. Google looks at many things here. Whether your content really answers the question. How much people trust your website. How fast the page loads. If it works properly on a phone. These are some of the factors people discuss when learning about Google ranking factors and search engine rankings.

Let’s say a person searches “best chocolate cake in Chandigarh”. Google lists pages from a few different bakeries. One bakery gets the top spot. Others sit lower, and some never reach page one. Google just wants to put the page with the best answer on top.

Where do AI search answers come from?

Google AI Overviews, ChatGPT search and Perplexity also begin with web pages. First, the tool splits your question into small pieces. For each part they look for a passage that answers it, and then they write a short reply. Many times, there are source links shown below the answer. Pages with clear, direct answers and clean structure get picked more. A trusted publisher helps too. Good Google rankings still help. But a few studies found that AI answers sometimes come from pages outside the top ten. This is where SEO for AI search and AI search optimization become relevant. The broader concept is sometimes called GEO, or generative engine optimization.

What are the types of SEO

SEO is usually split into three parts. Each part handles a different side of the job. These three areas work together as part of an effective SEO strategy.

Type What it covers Where the work happens
On-page SEO Content, titles, headings, images, internal links On your own pages
Technical SEO Crawling, speed, mobile use, security, site structure Behind the scenes of your website
Off-page SEO Backlinks, brand mentions, reviews On other websites and platforms

What Is On-Page SEO?

In On-page SEO, you make changes and improve the page. It helps to search engines and also users to understand it quickly. It starts with the content part, write useful content for the page that users want. After that, come to the title tag and meta descriptions, headings, URL’s, image alt text, and internal links to relate pages. Write for people first. Put your main keyword in the title, the first paragraph and one heading. After that, just write normal. If you push the keyword into every line, the page reads bad and it can hurt you.

What Is Technical SEO?

This is the behind-the-scenes part. Can Google crawl your site and index it without trouble? If not, the rest of your work won’t count for much. This is what we look for in technical SEO:

Here is what we check:

  • Pages load fast
  • Site works well on mobile, because Google mostly uses the mobile version to index
  • HTTPS is on
  • Clean URLs and an XML sitemap
  • robots.txt is not blocking pages you want people to find
  • Broken links and long redirect chains are fixed
  • Canonical tags are used when two pages look alike
  • Schema markup, a small code that tells Google what the page is

Google also looks at Core Web Vitals which focus on how quickly the main content of a page loads. For issues with how Google crawls and indexes pages, check out Google Search Console which is free. Following SEO best practices during technical improvements helps search engines access and understand important pages.

What Is Off-Page SEO?

Off-page SEO is everything outside your website that shows people trust you. The biggest example of this is backlinks. Trust is also shown with mentions of your brand, reviews by your customers, business listings, and features in articles. These things are mostly earned. You can try to make your business as useful as possible and easy to find. Then trust can be shown through backlinks and other things. Social media is also a place that shows your content to a wide audience. Sometimes links are earned through social media posts.

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What Is SEO Content?

SEO content writing is the process of creating a page or article made to answer a search. It’s just good content, but planned around what people really search for. Looking at what’s ranking on Google for a particular question is a good place to start. Once you’ve done this, make your answer more up-to-date. The following tips can help you write pages and blog posts for your site.

  • Keep it simple
  • Short paragraphs and clear headings
  • Use lists and tables only for readability
  • Claims must be backed by citations or facts
  • Follow EEAT (Experiance, Expertise, Authoritativeness, Trustworthiness) quality rater guidelines
  • Content that shows these is easier for people to believe
  • Never copy from other websites
  • Come back and fix the old page if something changes

How to improve SEO

You can start with very little money. Work through the following tasks in order. If you want to learn about SEO, start by working through these:

  1. Attach your site to Google Search Console and Google Analytics
  2. Research the keywords your customers use
  3. Fix technical errors like page speed, mobile layout, broken pages and indexing errors
  4. Write new pages or improve old ones to match what people are searching for
  5. Clean up the titles, meta descriptions, headings, images and internal links, page by page
  6. Create content other sites want to link to. That’s how backlinks come
  7. Check results every month
  8. Look at impressions, clicks, rankings and enquiries, then decide what to fix next

Following SEO best practices and regularly reviewing your website can help you avoid these common problems.

What Are SEO Services?

Professional SEO services are all the tasks that help your site get seen in search. Some businesses hire an SEO agency for it, some have their own person or team.

This includes audits, keyword research, page and technical fixes, content planning and writing, link building, and others. Local SEO services are offered if you have only one location. Same goes for e-commerce SEO services if you sell online. You should request for a monthly report to keep a record of your SEO investments.

Hiring someone, ask what exactly they can do for you. Avoid any person who guarantees the number one spot. Actually, Google states no one can assure you that spot.

How Long Does SEO Take?

There is no hard and fast rule to this, but in general, the older your website, the less competition you have, and the better your content and backlinks are, the faster your website will rank. A new website in a crowded market needs more time. An old website in a small niche gets there faster.

Small improvements can show in few weeks. For solid growth, think in months, not weeks. And SEO never really finishes. Search engines keep changing, and your competitors keep putting out new pages, so you have to keep going too.

Common SEO mistakes to avoid

  • Using the same keyword in every other line
  • Taking content from other sites, or putting the same text on many pages
  • Ignoring mobile users
  • Letting pages load slowly
  • Buying cheap links in bulk
  • Picking keywords without checking what the searcher is looking for
  • Hiding pages by accident with robots.txt or a noindex tag
  • Never updating old content
  • Expecting results in one week

Final Thoughts

If SEO still feels too big, start small. Really small. First, set up Google Search Console. It’s free and takes a few minutes. Then pick one page that matters to your business, maybe a service page or a product you want to sell more. Make that page the clearest answer to one question. Don’t try to fix the whole website in one go, that only makes you tired and nothing gets finished.

Now wait. Check the results after a month and see what changed. Did the page get more impressions? More clicks? Any calls or enquiries? Whatever you learn, use it on the next page. Then repeat. That’s really all it is. One page, then another. After a few months, you will have a website that works better, and you will also know what is working and what is not.

FAQs About Search Engine Optimization (SEO)

Is SEO free?

The clicks from organic results are free. Google doesn’t charge you when a person lands on your site. Still, SEO needs your time and a bit of skill. Many times you spend money also, on content, tools or someone who knows the work.

Can I do SEO on my own?

Yes, you can absolutely do SEO yourself. You can learn the basics fairly quickly, and do things like find keywords for your web pages and blog posts, produce helpful content, optimize your titles and headings, and track your results using Google’s various tools. That said, if your site is big or has more involved issues, you’ll want to enlist the help of an SEO agency.

Is SEO still useful when AI gives direct answers?

Yes, people are still using Google and Bing to do web searches. AI tools scan web pages for their answers and conclusions. When AI SEO best practices are used, your site will be useful and trusted by both search engines and AI platforms.

Do I need coding knowledge for SEO?

You don’t need to have knowledge of coding for Basic SEO work. But for things like schema or speed fixes, you may need a developer.

What is an SEO Agency?

An SEO agency is a team of SEO experts. An agency has dedicated experts for different areas, such as on-page work, off-page work, technical SEO, and AI SEO. If your website has several pages, you can hire an SEO agency for your website SEO.

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