Supercharge Your SEO with the 18 Best Chrome Extensions

Search engine optimization (SEO) is a complex and ever-evolving discipline. With Google using over 200 ranking factors in their algorithm, staying on top of SEO best practices is a constant challenge for marketers.

Fortunately, there are a number of excellent Chrome extensions that can help streamline and enhance your SEO efforts. The right browser tools allow you to quickly access key data points, audit on-page elements, identify issues and opportunities, and track your rankings – all without navigating away from the page you‘re on.

But with so many Chrome extensions available (over 188,000 in the Chrome Web Store as of 2023), it can be overwhelming to know which are truly valuable for SEO. That‘s why we‘ve done the legwork for you and compiled the 18 best Chrome extensions for SEO success.

Our criteria for inclusion was based on:

  • Unique value and functionality for SEO
  • Ease of use and intuitive UI
  • Affordability (free or low-cost)
  • Positive reviews and reputable developers

Whether you‘re an SEO novice looking for some handy browser-based tools, or a seasoned pro wanting to upgrade your extension toolkit, you‘ll find some great options on this list. Let‘s take a closer look at each one.

1. Mozbar

Pricing: Free (paid version available)

Mozbar Chrome extension

Key features:

  • Instant on-page metrics (DA, PA, links)
  • Highlight and analyze page elements
  • SERP overlay with key data points

Moz is a household name in the SEO industry, and their free toolbar extension is a must-have for quick, on-the-go analysis. With the MozBar installed, you can instantly view critical page metrics like Domain Authority, Page Authority, and number of linking root domains – both for the page you‘re on and the search results.

The toolbar also allows you to highlight and analyze on-page elements like headings, links, and metadata to ensure proper optimization. For more advanced features like keyword difficulty scores and page optimization suggestions, you can upgrade to a paid Moz Pro account. But even the free version packs plenty of functionality.

Best for: Quick domain and page-level analysis for any site, on-the-go optimization checks, SERP comparison at a glance. A solid everyday tool for SEOs of all levels.

2. Keywords Everywhere

Pricing: $10 for 100,000 credits

Keywords Everywhere Chrome extension

Key features:

  • View search volume, CPC, competition for keywords
  • Bulk upload keyword lists for analysis
  • Export and copy data to other tools

For keyword research, Keywords Everywhere is one of the handiest extensions around. It shows you search volume, cost per click, and competition data for any search you perform on Google. You can also analyze multiple keywords at once by pasting in a list or uploading a CSV file.

The data is powered by the Google Keyword Planner, so it‘s reliable and aligns with what you‘d see in Google Ads. You can also view trend graphs, related keywords, and "people also search for" suggestions. By eliminating the need to switch between tools, Keywords Everywhere is a huge time saver for both quick and in-depth keyword research.

Note: As of October 2019, Keywords Everywhere moved to a credit-based system. $10 gets you 100,000 credits, which should last a while for most users.

Best for: SEOs and content marketers who perform frequent keyword research and want reliable data without opening a separate tool.

3. Ahrefs SEO Toolbar

Pricing: Free

Ahrefs SEO Toolbar Chrome extension

Key features:

  • View Ahrefs‘ domain and page-level metrics on any site
  • Analyze top performing pages on a domain
  • Highlight nofollow links
  • Quickly access Site Explorer tool for deeper analysis

Ahrefs is one of the most popular SEO software suites on the market. Their free SEO toolbar extension gives you quick access to Ahrefs‘ proprietary metrics as you browse the web.

For any page or SERP, you can view key data points like Domain Rating, URL Rating, number of backlinks and referring domains, and estimated organic search traffic – without opening up the full Ahrefs platform. The toolbar also lets you generate free reports showing a site‘s top pages by traffic, and quickly see nofollow links.

While some features do require an Ahrefs subscription (like viewing a page‘s full backlink profile), the extension offers plenty of value on its own. It‘s an excellent companion if you already use Ahrefs, and a solid standalone SEO extension regardless.

Best for: Quick competitive analysis, identifying top performing content on any domain, analyzing SERPs, link prospecting. Great for existing Ahrefs users or anyone who wants reliable 3rd party SEO metrics at a glance.

4. Chrome Link Audit Extension

Pricing: Free

Chrome Link Audit Extension

Key features:

  • Check status codes of all links on a page
  • Highlight nofollow, UGC, and sponsored links
  • Bulk export link data to CSV

Broken links are bad for user experience and can hinder your SEO efforts. The Chrome Link Audit Extension makes it easy to quickly identify any HTTP status code issues with both your internal and outgoing links.

With the extension installed, simply click the icon and it will scan the page, highlighting any links that return 4XX or 5XX errors, 301 redirects, and more. You can also quickly spot nofollow links as well as UGC and sponsored attributes. Clicking on a highlighted link copies it to your clipboard for easy reference.

For more detailed analysis and reporting, you can export all the link data to CSV with one click. While it doesn‘t have some of the more advanced features of popular standalone link audit tools, this extension is a fast and effective way to identify critical issues that could be harming your on-page SEO.

Best for: Content managers, web developers, and SEOs who want to ensure their pages have healthy, functional links and proper use of link attributes.

5. META SEO Inspector

Pricing: Free

META SEO Inspector Chrome extension

Key features:

  • Audit titles, meta descriptions, headings, schema, and more
  • Check for optimal keyword usage and placement
  • Analyze page speed and mobile-friendliness
  • Generate automated optimization suggestions

On-page optimization remains a critical component of SEO. From title tags and headings to site speed and structured data, there are many on-page elements that influence your search rankings. The META SEO Inspector extension is a comprehensive tool for auditing these elements and identifying areas for improvement.

Running the extension on any page will generate an overview report scoring your on-page SEO and highlighting any issues like missing or duplicate tags, low keyword density, large page size, and more. You can also drill down into individual elements to get more detail and suggestions.

One handy feature is the ability to compare your target keyword usage and placement to top ranking pages for that term. This competitive analysis can help inform your on-page keyword optimization strategy. You can also bulk analyze multiple pages to find sitewide issues and opportunities.

Best for: Content marketers, bloggers, and SEOs looking to ensure their pages are properly optimized for target keywords and following technical SEO best practices.

6. SEOquake

Pricing: Free

SEOquake Chrome extension

Key features:

  • SERP overlay with key SEO metrics
  • On-page audits and optimization suggestions
  • Internal and external link analysis
  • Keyword density report and TF-IDF analysis

SEOquake is a powerful all-in-one extension for SEO analysis on both the page and SERP level. Its highly customizable SERP overlay allows you to view dozens of key metrics for ranking pages, including SEMrush ranking data, Alexa rank, social shares, and more. You can click on any result to perform a quick on-page audit as well.

For more in-depth page analysis, the extension offers a full site audit tool that checks for over 50 common SEO issues like broken links, duplicate content, missing alt text, and more. You can also get detailed reports on a page‘s link profile, keyword density, and semantic content analysis powered by TF-IDF.

One notable feature is the "Compare URLs" tool, which allows you to analyze two pages side-by-side to see how they differ in terms of keyword usage, content length, page speed, and more. This is useful for competitive analysis or comparing different pages on your own site.

Best for: SEOs and content marketers looking for a feature-rich extension for on-page audits, SERP analysis, and competitive benchmarking. The wealth of data and custom configuration options make this a power user‘s dream.

7. Lighthouse

Pricing: Free

Lighthouse Chrome extension

Key features:

  • Analyze page performance, SEO, accessibility, and best practices
  • Identify render-blocking resources and optimization opportunities
  • Generate detailed reports with actionable insights
  • Test for mobile-friendliness and Core Web Vitals

Lighthouse is a powerful open-source tool for analyzing web page quality, built and maintained by Google. While it‘s mostly known for its site speed auditing capabilities, Lighthouse also offers valuable insights for on-page SEO and overall site health.

Running a Lighthouse audit on a page generates a report with scores and suggestions across 5 key dimensions:

  1. Performance
  2. Accessibility
  3. Best Practices
  4. SEO
  5. Progressive Web App (PWA)

The SEO checks include important factors like crawlability, mobile-friendliness, legible font sizes, and descriptive link text. Lighthouse is also a great tool for identifying page speed issues that could be hindering your SEO, like render-blocking resources and unoptimized images.

Best for: Web developers and technical SEOs looking to optimize site performance and ensure proper search engine visibility. Running regular Lighthouse audits and implementing the recommendations can have a big impact on your organic search results.

Wrap Up

The Chrome extensions featured here offer immense value for marketers and SEOs looking to work smarter and drive better results from organic search. Whether you need help with keyword research, on-page optimization, link building, or technical audits, there‘s an extension to help streamline the process.

My advice is to choose a few of these tools that align with your most pressing SEO needs and priorities. Trying to learn and use too many extensions at once can be overwhelming, so start with a solid foundation and build from there. As you get comfortable with your essential extension toolkit, you can explore more advanced or niche tools over time.

Also, keep in mind that while these extensions can provide valuable insights and help automate certain SEO tasks, they‘re not a complete substitute for expertise and manual effort. At the end of the day, the strategic thinking, content creation, and relationship building that drives SEO success still requires a human touch.

Do you have a go-to Chrome extension for SEO that wasn‘t mentioned here? I‘d love to hear about it! Let me know in the comments below.