10 Types of SEO: ALL You Need to Know in 2021

10 Types of SEO
Daniel Martin April 29, 2021

10 Types of SEO: ALL You Need to Know in 2021

Digital marketing has become more flexible. Marketers are more competitive in using different types of SEO (Search Engine Optimization) to their benefit. Understanding the different types of SEO will help you rank better in search engine results pages (SERPs) and get your site the online presence it deserves.

However, this is no easy task. Search engines have specific algorithms to scour your website for data. There are web crawlers that index your website and rank it according to relevance from the search query. You can either learn how to optimize your site for these algorithms or hire SEO services to tackle your SEO problems.

If you want to find your business on top of Google search results, you need to know the different types of SEO. As you learn more about SEO, you will have a concrete plan on how to outrank your business competition.

Different Types of SEO

Knowing the different types of SEO will help you decide which one to use and how to use them safely. And when we say SEO, it includes more than the traditional keyword research and optimization. You can now do different types of SEO to fully optimize your site.

That’s why in this part, we will discuss the types of SEO and how they can help you gain more audience for your business. The amount of information may be overwhelming, but we’ll try to discuss all types of SEO. There are also SEO services that can do the work for you.

1. On-Page SEO

Everything that you can find in the content on your website is considered a part of your on-page SEO. These are the things that you often edit for optimization. Therefore, you should consider a second look at your website’s content.

An effective on-page SEO is leaning towards high-quality content and informative discussions. People are searching for answers to their solutions, and your website should be able to answer specific problems from your niche.

Remember that search engines look at websites as a unit, but the ranking is based on each page’s performance. That’s why it’s essential to make sure that your content is worth reading. Creating good content on your site will make your visitors interested in what your business has to say.

Here are some guidelines that you need to know to make your on-page SEO effective:

Page titles should be optimized

Your page title should be interesting enough for people to click through. A page title is a critical SEO (on-page) factor that you don’t want to go against your way. When people search for a query, the title and HTML will appear on the search results, depending on your ranking.

Page title, HTML, and meta description appear on SERPs when searching for a website.

That’s why your title should be interesting and informative at the same time. It should contain the gist of your site and enough information for web crawlers to know what your site is all about.

Optimizing heading tags for search engines

Headers are important when creating content. Headers serve as the markers to make it easier for readers and crawlers to navigate your page. It also makes it easier for them to identify what your content is all about.

Your web pages should only have one (H1) header per page. H1 tags usually have the same value as the page title. Make your header interesting to get your reader’s attention. Also, make it informative to satisfy the requirement of web crawlers.

Page formatting

It’s always a good practice to optimize your page first before making it live. A well-designed page is still better than a dull-looking one. That’s why you should always consider formatting before publishing to improve SEO on-page.

The way your page looks can affect your ranking in SERPs. For example, Google can mark your website as suspicious because of the number of ads and popups on your homepage. These things matter for web crawlers, therefore you should always do some formatting to a page before release.

Image formatting and editing for SEO

You can use images to boost your website’s on-page SEO. All you need to do is place alt texts for the search engine to understand what the image is about. Google doesn’t have eyes but it can see the images on your website through the alt text that you will provide.

You should optimize the file size, file name, and alt text based on specific keywords. Your images should load fast on mobile devices, laptops, and computers. This way, you won’t have any problems with broken images that can make your users leave your site.

Keyword research and optimization

Keyword research and optimization is one of the most important on-page SEO factors that you should consider for your site. Good content is something that your readers will appreciate and search engines will understand. And you will need keywords for that.

You should target your keywords depending on your niche. Optimizing the keywords on your site increases the chances for your site to appear when a visitor searches for a query. If you have the organic search keywords included in your content, it’s most likely that it will appear on Google or Yahoo.

2. Off-Page SEO

This type of SEO (off-page) is more concerned about the marketing aspect of promoting your site. Off-page SEO is different from other types of SEO because it relies heavily on your link building strategy. There are a lot of benefits from link building, that’s why it’s often used in digital marketing.

Importance of a good link building strategy

A good strategy thrives in the hyperlinks that you acquire from trusted websites. This hyperlink serves as a bridge between the two websites where the web crawlers can crawl to and from a website. It can also help your users navigate through different pages on the same niche.

With a good strategy, you can also make impressive marketing campaigns. You can extend this strategy to content marketing and SEO marketing campaigns. This will improve your overall digital marketing strategy and the authority of your website on Google.

“Link building is effective when done along with other marketing activities.” -LinkDoctor

According to research from LinkDoctorTM last year, almost all of the respondents said that effective link building is paired with good marketing strategies. Getting backlinks the right way will reward your site with organic traffic and domain authority.

That’s why the US is 43% more interested in building links than it was in 2005. The more you gain quality backlinks, the more your website will be trusted by your visitors and web crawlers. This will affect your ranking on SERPs.

3 benefits of a good quality backlink


Through a high-quality backlink, you can improve your SEO and improve your site’s authority on SERPs. This will improve the chances of getting referred to other websites. Through referrals, you can gain more authoritative backlinks from high-ranking websites.


“Google my business” is a great phrase to subtly brag about your brand. A website with great branding will appear more trustworthy for web crawlers and visitors alike. This will reflect on your site ranking on Google. The more you establish your brand, the more you will gain organic traffic. The more you gain organic traffic, the higher your ranking will be.

Establishing relationships

By exchanging URLs with other websites, you are also establishing relationships with businesses related to your niche. These connections can be used for referrals in the future. There are a lot of benefits you can reap if you establish genuine relationships with other business owners, so you have to make an effort to do so.

3. Technical SEO

Technical SEO is another type of SEO that you can improve through improving the technical aspect of your website. This includes having a responsive design, fast loading time, and mobile responsiveness. All of which can be solved using technical knowledge and skills in SEO.

SEO technical tips to improve your website

Technical SEO will require technical knowledge and skill about search engine optimization. These SEO tips will improve your website loading speed, image loading speed, and other technical aspects of your website. Here are some technical SEO tips to aid you in improving your website:

Include sitemaps and navigation

What good is your content if nobody would see it? You’re doing SEO tactics to amplify your site’s visibility. Sitemaps and navigation widgets for your website will help visitors navigate through your website and see your content with ease.

Navigation tools will help you have an effective sitemap. This will also help web crawlers in indexing your website. HTML tags can be used to jump from one page to another. This way, you can navigate through different pages on your website using different hyperlinks to your content.

Using tags properly

When searching for something on Google, the result will appear as a hyperlink with a description below. That description is what we call a meta description tag. If the <title> tag tells us something about the topic, the <description> tag tells us a summary of the content of the web page.

Using meta description tags properly improves your website visibility.

Optimizing your tags will help you guide web crawlers to finding what’s important in your content. This will help Google and other search engines to navigate through your content and grasp the idea of your page. This will also positively affect your SEO and authority in your niche.

Optimize for all types of devices

Your page content should be optimized for all types of devices. By optimizing your content for all devices, you’re making sure that your website visitors will be able to view your site, no matter what device they’re using. This also prevents slow loading speed and page load errors.

Your website should be optimized for computers, laptops, mobile devices, tablets, and even smart speakers. For example, Google Nest uses Google search results to display answers for queries. If your keyword/s matches the keyword/s on the query, Alexa will be prompted to announce the website and the result of the search. This will count as an organic search made by users that use smart speakers.

Make your URLs understandable

To crawl your website completely, web crawlers need a unique name for each unique content. This means that you have to think of a lot of names for your Uniform Resource Locator (URL). Also, make sure that your URL is understandable for your visitors.

For example, your local business is focused on selling women’s clothes online. You should use a URL that will help your visitor understand what page is she on. This will also help web crawlers understand your web page’s content.

Example: https://www.yourlocalclothingline.com/dress/womens?size?=4

Check for broken links

As a website owner, it’s a good habit to check for broken links on your website every once in a while. When users land on an error 404 page, they are going to leave your website. This will reflect badly on your website’s credibility and will affect your rankings negatively.

Broken Link Checker is an extension for Google Chrome which makes checking for broken links faster and easier.

You can use the Google Chrome Extension Broken Link Checker to identify and solve the problem regarding broken links. The software will run without the need to install anything. This makes it easy to check for broken links and take action before any SEO damage is done.

4. Local SEO

While many businesses shifted to online stores, some local businesses are still open today. These businesses are heavily rooted in the local community and use local SEO to their advantage. Local SEO is suited for local businesses that need people coming through their front door to generate an income.

This type of SEO is a special kind of SEO because it requires more steps to accomplish. But if you make it effective and efficient, your business will have a niche that will become trusted customers. Here are the few extra steps you need to consider when doing local SEO:

  1. Create a Google My Business account
  2. Register your local business in online directories such as Yahoo small business, FourSquare, Yelp, and other trusted directories.
  3. Use online directories/newspapers and partner with other local websites for more exposure.

Make sure that the name of your business, address, reviews, contact information, and other useful details appear on every page of your website. Also, embed the Google Maps marker on your homepage to show your shop’s location on the map.

5. White Hat SEO

Also known as the “good SEO”, white hat SEO techniques are good techniques that comply with search engine’s terms and conditions. These types of SEO techniques improve your website’s SERPs rankings and are very healthy for your site.

It’s important to know what methods are best for your website’s integrity and authority. This will protect your website rankings on SERPs. These SEO best practices can be used to boost your website’s presence “by the book”.

White hat SEO techniques are techniques known to boost your website’s presence.

White hat SEO techniques

Quality content

When we talk about the best SEO methods, the first thing people are going to say is to make high-quality content. Always remember that your content is not made for web crawlers. Your content is meant to capture your website visitor’s attention and inform them about the topic.

This will reward your website with a good ranking. It will also increase your website’s credibility and can open doors to collaborations. Many opportunities can be created when you start with making high-quality content.

Content-relevant keywords

When writing your content, you’ll need to use certain keywords to increase your website ranking. However, you should only use keywords that are relevant to your content and your niche. Stuffing your content with a nonsense keyword will get your website flagged by Google as spam.

Ease of navigation

If your website is easy to navigate, visitors will have an easy time scanning and reading through your content. But if your visitors get lost inside your website, the tendency is for them to leave the website instantly. This could hurt your SEO.

User experience is taken very seriously by search engines, and so should you. Although this can be placed under technical SEO, it’s still considered a white hat SEO technique. That’s why it’s important to add navigation widgets and internal links to help your users navigate through your site.

Fast page speed

Fast loading speed and responsiveness are necessary for your visitors to have a smooth flow when navigating your site. A slow and clunky web page can be the reason why your visitors won’t come back for a second look at your site.

Be aware of the functions and features of your website that can slow download speed. Large images, popups, and ads can slow down loading speed, so make sure to optimize these to improve loading time.

6. Black Hat SEO

If white hat SEO is the “good SEO”, black hat SEO is the counterpart. These malicious SEO practices can gain you higher traffic and ranking on SERPs at the cost of your website’s integrity. These types of SEO practices try to outsmart search engines through loopholes in the system, but are unsuccessful and can damage your credibility.

Black hat SEO techniques can also gain you traffic, but these practices are prohibited by search engine authorities.

Black hat SEO techniques

Paid link

Paid links are bought for the sake of increasing a website’s rank. This technique is outright buying a link without even making an effort to make quality content in exchange for it. You simply pay to place the URL on a high-authority website (even if it’s not from your niche) and reap the benefits of it. But this manipulation is flagged by the search engine as a black hat SEO technique.

Keyword and meta keyword stuffing

Keyword stuffing is purposely placing a keyword on your content to a point that it’s saturated and out of context. This technique may have tricked search engines before, but with the change in algorithms, tracking down these stuffed keywords has become much easier. Search engine authorities can also block your site or fine you for committing this black hat SEO technique.


Cloaking your content to appear relevant to web crawlers is considered a black hat technique because it gives people irrelevant results from their searches. This also violates the Google Webmaster Guidelines. Your website can receive penalties for doing this, which can affect your website’s long-term performance.

7. Social Media SEO

Social media has become one of the most used platforms on the Internet today. People all over the world are using their mobile phones now more than ever. And as a marketing manager, using content marketing strategies on social media platforms can help boost your website’s popularity.

However, you have to understand that social media presence does not directly affect your rankings. Links shared on Facebook or Twitter cannot be seen by search engines, but these can help you boost your traffic.

By gaining more traffic, more people will see your website and its contents. It will increase brand awareness and visibility. By publishing creative, informative, and inspiring content, you can improve your website’s performance and rank.

8. eCommerce SEO

The eCommerce business has grown so big that a lot of competition exists in the market. Thus, if you have an eCommerce store, your website will be harder to promote. There will be more competition that you need to look out for while running your eCommerce business.

eCommerce SEO is different from other types of SEO because, aside from the on-page SEO and off-page SEO modifications, you also need to optimize all tags and every image included on every product page. You also need to think of creative ways for people to share your product and provide positive reviews.

Here’s what you need to do if you want to improve your eCommerce SEO:

  1. Start optimizing your online shop through the homepage and category pages.
  2. Once you optimize your homepage and category pages, do this to ALL of your product pages (based on keyword research).
  3. Optimize all images and other visual elements on your shop.
  4. Optimize your online store for mobile phones and other mobile devices.

9. App Store SEO

Google Play Store and Apple App Store have search inputs if you’re looking for a specific application. If your business has an app for mobile phones, your goal is to make it to the top of the search results. Just like on-page SEO, you need to make sure that your visitors will see your product when they search for it.

Titles, tags, images, and all other elements should be optimized. Your product descriptions, just like meta descriptions, should contain keywords necessary to guide people in finding your product page. It’ll be easier for your customers to find your product if these elements are optimized.

10. YouTube SEO

YouTube SEO has similarities with App Store SEO in terms of its target niche. These types of SEO are focused on specific niches that have high amounts of organic traffic. YouTube SEO focuses on promoting your brand through YouTube mentions, comments, and other white hat ways to gain organic traffic.

Like Google, there are also search prediction results if you input a keyword in YouTube.

Remember that YouTube is also a search engine and has tons of traffic. And there are also keywords that people use when they look something up. All you need to do is to research the keyword/s relevant to your video and optimize your video title and description.

And for your video to appear on Google results, you need to know the video keywords for your content. These keywords are commonly used for video tutorials and other video content that are searchable on Google.

Here are some video keywords to choose from:

  • How to
  • Reviews
  • Tutorials
  • Anything sports-related
  • Funny videos

Lastly, don’t forget about the quality of your video content. For viewers to like and subscribe to your videos, you need to give them entertaining, informative, and engaging content. One that will surely get your audience’s interests.


Successful strategies for boosting SEO include multiple types of SEO. To improve your rank on SERPs, doing the first 3 types of SEO is a must. The other types of SEO are always at your disposal whenever you need them.

Just remember that the reason you’re improving your website’s SEO is to improve the overall user experience. Your site is designed for regular customers and not web crawlers. You can always hire SEO services to aid you in optimizing your site.

If you have other tips that you can share with us, leave a comment in the comment section. I’ll be happy to respond to your questions. Thanks for sharing!

Daniel Martin

Dani started his career in an aviation company and worked his way up the ranks into positions of leadership, where he feels most at home. Now, he’s building winning SEO teams that are able to solve complex problems with simple, effective solutions.

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