• Skip to primary navigation
  • Skip to main content
321 Web Marketing logo dark
321 Web Marketing logo light

321 Web Marketing

Inbound Lead Generation Company

  • Inbound Lead Strategy
    • AI Marketing
    • Search Engine Optimization
    • Generative Engine Optimization
    • Google Ads Management
    • WordPress Optimization
    • Content Marketing
    • Lead Generation
    • Website Development

    Would you like a free market research workshop?

    Schedule Conversation

    Ready To Turn Website Traffic Into Real Leads?

    Explore the inbound marketing services that drive measurable results.

    Build Your Lead Pipeline
  • 321 Software
    • 321leadtracker.io
    • Content Portal
    • Real-Time Metrics
    • 321 WordPress Tools

    Would you like a free market research workshop?

    Schedule Conversation

    View Our Past, To See Your Future.

    Explore the strategies, websites, and systems we’ve built for clients across industries.

    View Portfolio
  • Free Tools
    • ROAS Calculator
    • Lead Gen Benchmarks
    • Website Checklist

    Would you like a free market research workshop?

    Schedule Conversation

    Real Campaigns. Real Results.

    See how we’ve helped real clients increase visibility, lower cost-per-lead, and generate consistent inbound leads.

    Explore Case Studies
  • Industries

    • Contractors
    • Cybersecurity
    • Insurance
    • IT
    • Healthcare
    • Legal
  • Who We Are

    • About
      • Awards
      • Portfolio
      • Community
      • Careers
      • Case Studies
      • Team
    • Blog
      • Articles
      • Guides
      • News

    Would you like a free market research workshop?

    Schedule Conversation
Free Consultation
person searching SEO marketing strategies
Home › Blog › Search Engine Optimization ›

Important SEO Ranking Factors In 2021

Elijah Millard Headshot

Elijah Millard

Principal, Digital Marketing

Elijah leads the marketing department, organizing and implementing creative and innovative digital marketing campaigns with a background in mass communications & psychology.

Table of Contents

  1. 1. Top 14 SEO Ranking Factors in 2021
  2. 2. Schedule A Consultation Today

Share this post

Copy to clipboard
321 Web Marketing logo 2025

Ready to Drive Real Growth?

Stop guessing and start generating real results. Let’s talk about what growth could look like for your business.

Get Started Today

Calendar icon Aug 16, 2021 · Clock icon 5 min read · ChatGPT logo Summarize in ChatGPT

Search engine optimization (SEO) determines how websites rank in the search engines. Developing an effective SEO strategy can boost a business’s online visibility, target quality traffic and generate profits. Search engines look at a multitude of factors when ranking websites.

Top 14 SEO Ranking Factors in 2021

Here are the most important SEO ranking factors in 2021 and how to use them to rank well in the SERPs.

1. Website And Page Speed

Speed is critical to the health of a website. According to a study published by Forrester Consulting, the average online shopper expects a web page to load in about two seconds. The study shows that approximately 40 percent of shoppers will not wait more than three seconds before abandoning a slow-paced website.

Google scores desktop and mobile versions differently in terms of page speed. Therefore, businesses must ensure that both versions perform optimally to prevent visitors from abandoning the site. There are many ways to improve page speed, such as by choosing a quality hosting solution, compressing images and reducing redirects.

2. Usability On Mobile Devices

pie chart of mobile view

Figure 2.1

The number of mobile internet users in 2020 stood at 4.28 billion, according to Statista, indicating that more than 90 percent of the global internet population uses a mobile device to search online. Creating a mobile-friendly website is not just convenient but is also critical to a business’s SEO strategy.

When designing a mobile website, ensure that it is responsive, meaning it automatically resizes to fit the device. Content should not be hidden by ads and there should be accessible menus that make the website easy to navigate. Also, use large fonts that are easy to read on a small screen.

Figure 2.1 shows a pie chart that displays how many potential customers view one of our clients’ websites, Waterprpoof Caulking & Restoration, through mobile devices.

3. Inbound, Outbound & Internal Links

There is a direct correlation between the quality and quantity of links that a website contains and how much search traffic it receives. Search engines look at several factors when evaluating the quality of a link, such as its relevance to the web page content, the authority of the website and the diversity of links.

Businesses can use three main types of links to improve SEO. Inbound links are links that come from other websites or another domain name. Outbound links are links on a website that link to websites with a different domain name. Links between different pages within the business’s own website are considered internal links.

4. Keyword Targeting

SEO keywords refer to keywords or phrases used in web content that make it possible for online users to find the website organically through search engines. Keyword research can provide businesses with valuable insight into consumer search queries that the company’s target audience is actually searching for on search engines.
There are several steps in the keyword research process. Start by creating a list of important and relevant topics related to the business. Research related search terms to find words and phrases that can optimize the business’s content. Keyword research tools can be useful for identifying the best-performing keywords and phrases.

5. Domain Name & Authority

Domain names are the unique internet addresses of websites. A domain name is made up of three main components: a top-level domain, a domain name (IP address) and an optional subdomain. The term “root domain” refers to the combination of the domain name and top-level domain.

To maximize search engine traffic, choose a domain name that is memorable and includes broad keywords when they make sense. Another important SEO ranking factor is domain authority. Acquiring a good domain authority requires businesses to practice good SEO techniques that focus heavily on building authoritative backlinks.

6. User Experience

User experience (UX) is how a person perceives their interaction with a particular product or service, either at the time they are using it or at the time they are browsing a website or app. There are several main aspects of UX, including accessibility, usability, interaction and communication style.

There are many ways that businesses can create a better web page experience. Start by looking at how content is displayed. Break up content into small paragraphs with meaningful heading tags, optimized images, and the use of ordered lists or bullet points. Test each page on different mobile devices to ensure a smooth user experience.

7. Website Security & Accessibility

Brand reputation plays a direct role in the effectiveness of SEO. Customers are depending on the business to securely manage their private information and money. If consumers lose trust in a business, it can cause a loss of revenue. Do not allow search engines to blacklist a business website due to poor security.

Website accessibility is also an important aspect of website optimization. A website should be usable and accessible by everyone, including individuals with cognitive, auditory, physical, visual or neurological impairments. Accessible websites allow all users to easily navigate the site and find the information they are looking for.

8. Meta Description

A meta description is an HTML attribute that delivers a summary of a web page. This brief description is generally displayed by search engines on the results pages and can directly influence click-through rates. Although a meta description can be any length, Google limits snippets to 160 characters.

meta description for new city

Figure 8.1

Meta descriptions give businesses the opportunity to advertise their content and encourage web searchers to click by letting them know exactly what the page is about. When creating a meta description, add words that give value to the page. Include a call to action, such as “click here” or “view video.”

Figure 8.1 is an example of a meta description for one of 321 Web Marketing’s clients, New City Insurance, for their homepage.

9. Title & Header Tags

Title and header tags deliver context and structure to content. These tags should provide the reader with a basic understanding of what information they will find in the section that follows. Header tags typically range from H1 to H6 with H1 introducing the reader to the topic, H2 introducing main topics, and H3 to H6 serving as subheadings.

The title tag belongs in the “head” section of a web page and is used to identify the title of the web page. It is usually a clickable headline when seen in the SERPs and social media channels. A title tag should provide the reader with a clear idea of what the page content contains.

10. Social Signals

Although Google has previously reported that social shares are not a direct ranking factor, there seems to be a strong correlation between websites with high social shares and high-ranking websites. More social shares generate more traffic to the website and make the content more likely to build backlinks.

For these reasons, generating more social shares can help a business improve its search engine rankings. However, this requires businesses to create a strong presence on social media sites like Facebook, Twitter and Instagram. Share content regularly on social media to heighten social signals.

11. Optimized Content

how many users are coming through organic seo

Figure 11.1

SEO and content go hand-in-hand so it makes sense that having optimized content will help a website rank in the SERPs. People use search engines every day to find information, products, services and answers to questions. Publishing original, high-quality content is the foundation of any trustworthy and well-optimized business website.

There are many types of SEO content that businesses can publish to help them rank better in search engines. This includes product pages, blog posts, articles, guides, lists, slideshows, infographics, videos, directories and glossaries. It can also be useful to have a mix of these content types.

Figure 11.1 shows where traffic is coming into a website from. Here, we see that the large majority of traffic is entering the site through organic search, which can be attributed to SEO marketing efforts.

12. Image Alt-Text

Alt text, otherwise known as an alt attribute or tag, is a small snippet of information that describes an image. Originally, alt text was used as an aid to the blind or visually impaired to let them better understand what an image portrays using screen reader tools. Today, alt text can serve multiple purposes, such as improving a website’s SEO.

When alt tags are used with an image, search engine crawlers can better understand what the image is trying to portray and can index the image correctly. Alt text can also be useful when a browser is unable to render a web page properly. In place of an image, the page will show the alt text which describes what the user should be seeing.

13. Real Business Information

Businesses that have a brick-and-mortar location may rely on local search to draw in customers. When targeting particular areas, it is important to provide real business information. Up-to-date and accurate real business information plays a critical role in local SEO ranking factors.

Real business information includes several key pieces of information that help local customers find the business, such as the NAP (name, address and phone number), reviews on directories like Yelp, and business listings on social media and Google My Business (GMB).

14. Site Crawlability

Search engines rely on bots called “crawlers” or “spiders” to browse, index and rank millions of web pages across the internet. Crawlable sites have several common characteristics, including a clear layout, simple sitemap and easy-to-access internal links that point to each page of content.

Sites that are not crawlable also have some similar characteristics, such as an incoherent sitemap, 404 errors, broken links and dead-end web pages. When trying to rank in the search engines, it is important to ensure that the website can be easily crawled and indexed.

Schedule A Consultation Today

High rankings in the search engines can help businesses improve their online brand visibility, attract new and repeat customers, and create a solid reputation that helps consumers see the business as reputable. Working with an experienced web marketing agency can help businesses rank in 2021. For more information or to request a consultation with a Northern Virginia web marketing team, contact the experts at 321 Web Marketing.

Related Articles:

  • The Ultimate SEO Guide For 2020
  • How To Generate Leads With SEO
  • What Is SEO Management?
Elijah Millard Headshot

Elijah Millard

Principal, Digital Marketing

Elijah leads the marketing department, organizing and implementing creative and innovative digital marketing campaigns with a background in mass communications & psychology.

321 Web Marketing logo circle new

About 321 Web Marketing

Inbound Lead Generation Company

We provide expert national SEO services to help businesses rank for lead-generating search terms on the front page of Google.

Share this post

Copy to clipboard

What Our Clients Are Saying About Us

OFP LAW logo

Kim Greer

OFP Law

One of the best business decisions I ever made was to contract with 321 Web Marketing. Jonathan Gessert and his team are knowledgeable, efficient, and effective, making digital marketing goals easy to achieve and helping [...]

Business Benefits group logo

Kelly Cole

Business Benefits Group

My company hired 321 Web Marketing in February 2016 to resurrect our web site. We feel our web site is the face to our business and desperately needed a make over. 321 took us from blah to WOW effortlessly and what a difference [...]

Diener & Associates Logo

Emily Hawkins

Diener & Associates

Thanks to 321 Web Marketing, the client has seen an increase in their search engine leads, averaging 12 qualified leads per month. The client has also achieved prominent Google Maps and search placement. The team manages the engagement [...]

Paw Pals Pet Sitting Logo

Trevor Telesz

Paw Pals Pet Sitting

321 Web Marketing successfully translated the client’s design into a stunning and refreshed website, ensuring seamless functionality across all dynamic views. The team provided clear timelines and stuck to them, keeping everything [...]

Spartan Animal & Pest Control Logo

Corey Davis

Spartan Animal & Pest Control

321 Web Marketing is truly phenomenal at what they do. Their ability to communicate and describe the steps and actions that they are implementing , Alex Zarpas in particular, is excellent. Delivering on promises is all they have done for me [...]

MFE Insurance Logo

Alec Roberts

MFE Insurance

I can’t say it enough, Jonathan and his team have gone above and beyond since day one to accommodate our needs and meet our goals. I run a specialty insurance brokerage based in LA and once we found 321 we never looked [...]

Advantage Tech Logo

Richard Wilbur III

Advantage.Tech

Thanks to 321 Web Marketing’s web development work, the client increased rankings and traffic from search engines. Also, their business secured prominent positions on Google Maps and industry-relevant, profitable keywords. The client also [...]

FVCBank logo

Bruce Gemmill

FVCbank

After the website revamp, the client saw a steady rise in leads from search engines, resulting in additional traffic. 321 Web Marketing is highly punctual when it comes to deliverables, and internal stakeholders are impressed with the service [...]

VAE Logo

Drew Weeks

VAE

321 Web Marketing delivered a sleek website that accurately portrays the size and quality of the client’s organization. All of their completed websites have received positive feedback from users who have been impressed by the UX/UI. The [...]

Masten Pools Logo

Ryan Masten

Masten Pools

321 Web Marketing has increased the client’s leads from zero to 53 monthly. Their SEO efforts pay off impressively due to a top-ranking position on Google and making the site the number one result for several local service keywords. The [...]

Previous
Next

Related Articles

Mar 8, 2026 · 7 min read

search in google panel on ipad

Why Google’s AIO Has Impacted Visibility and CTR

Are AI Overviews hurting your search traffic? Learn why Google's AIO has impacted visibility and CTR, and adapt with 321 Web Marketing today. Read More

Elijah Millard Headshot

Elijah Millard

Jul 14, 2025 · 5 min read

women working on new website design choosing pictures using the laptop surfing the internet

Why User Experience Design Affects Search Rankings

Google tracks how design affects user behavior and rankings. Poor layout, speed, or mobile issues can quietly hurt your SEO performance. Read More

Steve Bishop Headshot

Steve Bishop

Jul 3, 2025 · 27 min read

seo campaign data

Everything You Need To Know When Planning An SEO Campaign

Master SEO campaign planning with our complete guide. Learn proven on-page, technical, & off-page strategies to improve your search rankings. Read More

Elijah Millard Headshot

Elijah Millard

Clutch Top 1000 Companies 2024 Award
Clutch Top Technical SEO 2024 Badge
Google Partner logo

Recognized For Results, Backed By Data

We believe marketing should be measured by performance, not promises.

Schedule Meeting
321 Web Marketing logo light

Virginia Office
1900 Reston Metro Plaza
Suite 600
Reston, VA 20190

Maryland Office
1209 North East St
Ste A #250
Frederick, MD 21701


Contact Us

Link to company Facebook page

Link to company LinkedIn page

Link to company Instagram page

  • Inbound Lead Strategy
    • AI Marketing
    • SEO (Search Engine Optimization)
    • GEO (Generative Engine Optimization)
    • Local SEO
    • Google Ads
    • WordPress Optimization
    • Content Marketing
    • Lead Generation
    • Website Development
  • 321 Software
    • 321leadtracker.io
    • Content Portal
    • Real-Time Metrics
    • 321 WordPress Tools
  • Free Tools
    • ROAS Calculator
    • Lead Gen Benchmarks
    • Website Checklist
  • Industries

    • Contractors
    • Cybersecurity
    • Insurance
    • IT
    • Healthcare
    • Legal
  • About
    • Our Process
    • Awards
    • Portfolio
    • Community
    • Careers
    • Case Studies
    • Team
  • Blog
    • Articles
    • Guides
    • News

Copyright © 2026 321 Web Marketing·All Rights Reserved·Privacy Policy·Terms of Use·Client Login