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Marketing Checklist



Title Tag

Add-ons for Firefox

Length: 19 character(s)


Great, your title tag contains between 10 and 70 characters.

Make sure your title tag is explicit and contains your most important keywords.

Be sure that each page has a unique title tag.

Check the title of your website


<H1> <H2> <H3> <H4> <H5>
1 7 60 0 0
<H1> Add-ons
<H2> Explore
<H2> Categories
<H2> Most Popular All »
<H2> Featured Extensions See all »
<H2> Up &amp; Coming Extensions See all »
<H2> Featured Themes See all »
<H2> Featured Collections See all »
<H3> Welcome to Firefox Add-ons.
<H3> On the go?
<H3> QrCodeR
<H3> Capture &amp; Print
<H3> Adblock Plus
<H3> All-in-One Sidebar
<H3> SmoothWheel
<H3> FindBar Tweak
<H3> Tile Tabs
<H3> Stratiform
<H3> BetterPrivacy
<H3> Bluhell Firewall
<H3> LeechBlock
<H3> QuickMark
<H3> DuckDuckGo Plus
<H3> Font Finder
<H3> Clean Links
<H3> Converter
<H3> Lightbeam for Firefox
<H3> Saved Password Editor
<H3> Smart Ads Blocker
<H3> English - English Dictionary
<H3> GPU Accelerated Flash Player
<H3> No Flash
<H3> Ageless for YouTube
<H3> Instagram Video Download
<H3> I don&#39;t care about cookies
<H3> SoundCloud Player
<H3> RSS Feed Icon in Navbar
<H3> AlertStopper
<H3> Cliqz Beta
<H3> Menu Wizard
<H3> GMX MailCheck
<H3> Euskalbar
<H3> Steam linkfilter bypasser
<H3> URL Logger
<H3> Copy Links
<H3> iPhone AppStore
<H3> Alice in Wonderland Varal - Clothes Line
<H3> Sunny Mountains
<H3> I Love Butterflies_2014
<H3> Turquoise Paradise
<H3> Floral Overhang
<H3> leaves with dew
<H3> Cheerful Spring Frogs
<H3> leaf with dew drops
<H3> Grey blue liberty
<H3> Retro Color
<H3> Hummingbird and Butterfly Vector
<H3> Sunset Harbor Lighthouse
<H3> Physalis x-ray
<H3> Chii&#39;s Sweet Home - Playing 2 (Black Text)
<H3> dream of autumn
<H3> Albino Lizard
<H3> Sweetonly!
<H3> Aspen Gold
<H3> Web Developer&#39;s Toolbox
<H3> Family Organizer
<H3> Privacy
<H3> Complete Themes

Great, your website is structured using HTML headings (<H1> to <H6>).

Use your keywords in the headings and make sure the first level (<H1>) includes your most important keywords. Never duplicate your title tag content in your header tag.

While it is important to ensure every page has an <H1> tag, never include more than one per page. Instead, use multiple <H2> - <H6> tags.

Add the important keywords in <H> headings

Keywords Cloud

  • users 65
  • firefox 57
  • download 50
  • add-on 46
  • version 45
  • following 44
  • compatible 43
  • rated 39
  • stars 36
  • add-ons 18

This Keyword Cloud provides an insight into the frequency of keyword usage within the page.

It's important to carry out keyword research to get an understanding of the keywords that your audience is using. There are a number of keyword research tools available online to help you choose which keywords to target.

Keyword Consistency

Keywords Freq Title Desc <H>
users 65
firefox 57
download 50
add-on 46
version 45
Keywords (2 words) Freq Title Desc <H>
add-on compatible 43
version firefox 43
compatible version 43
firefox following 43
download add-on 39
Keywords (3 words) Freq Title Desc <H>
compatible version firefox 43
add-on compatible version 43
version firefox following 43
download add-on compatible 39
rated stars download 35

This table highlights the importance of being consistent with your use of keywords. To improve the chance of ranking well in search results for a specific keyword, make sure you include it in some or all of the following: page URL, page content, title tag, meta description, header tags, image alt attributes, internal link anchor text and backlink anchor text.

Be more consistent with your keywords

Alt Attribute

We found 48 images on this web page.

47 ALT attributes are empty or missing.

  • https://addons.cdn.mozilla.net/user-media/addon_icons/333/333648-32.png?modified=1360059587
  • https://addons.cdn.mozilla.net/user-media/addon_icons/395/395282-32.png?modified=1401303223
  • https://addons.cdn.mozilla.net/user-media/addon_icons/1/1865-32.png?modified=1401960626
  • https://addons.cdn.mozilla.net/user-media/addon_icons/1/1027-32.png?modified=1399405049
  • https://addons.cdn.mozilla.net/user-media/addon_icons/0/357-32.png?modified=1369411891
  • https://addons.cdn.mozilla.net/user-media/addon_icons/308/308417-32.png?modified=1398616046
  • https://addons.cdn.mozilla.net/static/img/addon-icons/default-32.png?b=29f3b6a-542968c7
  • https://addons.cdn.mozilla.net/user-media/addon_icons/539/539044-32.png?modified=1411553985
  • https://addons.cdn.mozilla.net/user-media/addon_icons/465/465981-32.png?modified=1411800468
  • https://addons.cdn.mozilla.net/user-media/addon_icons/541/541882-32.png?modified=1412009939
  • https://addons.cdn.mozilla.net/static/img/addon-icons/webdev-32.png
  • https://addons.cdn.mozilla.net/user-media/addon_icons/532/532854-32.png?modified=1411635899
  • https://addons.cdn.mozilla.net/static/img/addon-icons/downloads-32.png
  • https://addons.cdn.mozilla.net/user-media/addons/547404/preview.png?1412084359
  • https://addons.cdn.mozilla.net/user-media/addons/545758/preview.png?1411510830
  • https://addons.cdn.mozilla.net/user-media/addons/547550/preview.png?1412108430
  • https://addons.cdn.mozilla.net/user-media/addons/546304/preview.png?1411663737
  • https://addons.cdn.mozilla.net/user-media/addons/545262/preview.png?1411334430
  • https://addons.cdn.mozilla.net/user-media/addons/544690/preview.png?1411147774
  • https://addons.cdn.mozilla.net/user-media/collection_icons/0/2.png?m=1412217675
  • https://addons.cdn.mozilla.net/user-media/collection_icons/0/6.png?m=1410544281
  • https://addons.cdn.mozilla.net/user-media/collection_icons/5367/5367586.png?m=1411894451
  • https://addons.cdn.mozilla.net/static/img/icons/collection.png
  • https://addons.cdn.mozilla.net/static/img/zamboni/footer-logo-med.png?b=29f3b6a-542968c7

Alternative text (the alt attribute) is missing for several images. Add alternative text so that search engines can better understand the content of your images.

Remember that search engine crawlers cannot actually "see" images, so the alternative text attribute allows you to assign a specific description to each image. They are also used by screen readers to help provide some context for the visually impaired.

Adding alternative text can help to reinforce how relevant a page is to its target keywords, while also making images more likely to be displayed in the Google™ Images search results.

Check the images on your website and make sure ‪‬‬effective alternative text is specified for each image.

Restrict the number of characters in alt text to 150, including spaces, and minimize the size of images to optimize your website's page load times.

Set a name for all your images

Text/HTML Ratio



This page's ratio of text to HTML code is below 15 percent. This means that your website probably needs more text content.

A ratio between 25 and 70 percent is ideal. When it goes beyond that, the page might run the risk of being considered as spam.

As long as the ‪‬‬content is relevant and gives essential information, it is a plus to have more of it.

Write additional content with more keywords

Indexed Pages

547,747    547,747

This is the number of pages on your website that are indexed by search engines. It's important to aim to have all of your web pages crawled and indexed by the search engines, as this gives you more opportunity for your website to be found.

A low number (relative to the total number of pages/URLs on your website) indicates that there is an issue, whether it's due to a bad internal linking structure, or you're unknowingly preventing search engines from crawling your pages.

Make sure your website's XML sitemap is present and you have submitted it to the major search engines. Building backlinks to your website's internal pages will also help bots to discover, crawl and index them, while building authority to help them rank in the search engines.

Check Google™ Search Console under 'Google Index' and 'Crawl' to keep track of the status of your site's indexed/crawled pages.

Write more content

IP Canonicalization



Good, your website's IP address is forwarding to your website's domain name.

To check this for your website, enter your IP address in the browser and see if your site loads with the IP address. Ideally, the IP should redirect to your website's URL or to a page from your website hosting provider.

If it does not redirect, you should do an htaccess 301 redirect to make sure the IP does not get indexed.



Great, your website has a robots.txt file.

A robots.txt file allows you to restrict the access of search engine robots that crawl the web and it can prevent these robots from accessing specific directories and pages. It also specifies where the XML sitemap file is located.

You can check for errors in your robots.txt file using Google Search Console (Formerly Webmaster Tools) by selecting 'Robots.txt Tester' under 'Crawl'. This also allows you to test individual pages to make sure that Googlebot has the appropriate access.

Add a robots.txt file

XML Sitemap



Your website does not have an XML sitemap - this can be problematic.

A sitemap lists URLs that are available for crawling and can include additional information like your site's latest updates, frequency of changes and importance of the URLs. This allows search engines to crawl the site more intelligently.

We recommend that you generate an XML sitemap for your website and submit it to both Google™ Search Console and Bing Webmaster Tools. It is also good practice to specify your sitemap's location in your robots.txt file.

It's important to only include pages that you want the search engines to crawl, so avoid any that have been blocked via your robots.txt file. Check the URLs to ensure that none of them cause redirects or return error codes. This includes being consistent with your URLs, for example, including your preferred URLs (with or without www.), including the correct protocol (http or https) and making sure URLs all end with or without a trailing slash.

Add and Optimize your XML sitemap

URL Rewrite

Warning! We've detected parameters in a significant number of URLs.


Consider rewriting your URLs.

Your site's URLs contain unnecessary elements that make them look complicated. A URL must be easy to read and remember for users. Search engines need URLs to be clean and include your page's most important keywords. Clean URLs are also useful when shared on social media as they explain the page's content.

Rewrite your URLs and clean them up.

Underscores in the URLs

We found underscores in this URL and/or in your in-page URLs.

  • https://addons.mozilla.org/firefox/downloads/file/140737/adblock_plus-2.0.3-sm+tb+fn+fx.xpi?src=hp-hc-featured
  • https://addons.mozilla.org/firefox/downloads/file/114172/all-in-one_sidebar-0.7.13-fx.xpi?src=hp-hc-featured
  • https://addons.mozilla.org/firefox/downloads/file/168956/clean_links-2.2.1-fx+sm.xpi?src=hp-hc-featured
  • https://addons.mozilla.org/firefox/downloads/file/174925/saved_password_editor-2.6.4-sm+fx+tb.xpi?src=hp-hc-featured
  • https://addons.mozilla.org/en-US/firefox/addon/i-love-butterflies_2014/
  • https://addons.mozilla.org/en-US/firefox/collections/mozilla/featured_complete_themes/
We have detected underscores (these_are_underscores) in this URL and/or in your in-page URLs. You should instead use hyphens (these-are-hyphens) to optimize your SEO.

While Google™ treats hyphens as word separators, it does not for underscores.

Blocking Factors

Flash: No

Frames: No

Flash should only be used for specific enhancements. Although Flash content often looks nicer, it cannot be properly indexed by search engines. Avoid full Flash websites to maximize SEO. This advice also applies to AJAX.

Frames can cause problems on your web page because search engines will not crawl or index the content within them. Avoid frames whenever possible and use a NoFrames tag if you must use them.


We found a Blog on this website.


Starting a blog is a great way to engage with your audience and increase your online visibility by attracting qualified traffic from new sources.

Use our tips to optimize your blog and improve performance.

Consider starting a blog


Mobile visits

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Mobile Friendliness

Very Good    Very Good

This web page is super optimized for Mobile Visitors

Mobile CSS

Mobile Redirection

Great, your site is well-configured for visitors from mobile devices. Mobile Friendliness refers to the usability aspects of your mobile website, which Google™ uses as a ranking signal in mobile search results.

Mobile Rendering

addons.mozilla.org on an iPhone
addons.mozilla.org on an iPad

The number of people using the Mobile Web is huge; over 75 percent of consumers have access to smartphones. ‪‬Your website should look nice on the most popular mobile devices.

Tip: Use an analytics tool to track mobile usage of your website.

Touchscreen Readiness

Make the most important buttons/links large enough to be tapped easily.

Ensure that your tap targets are large enough (at least 48 pixels in height and width) so that your visitors can press them easily. It’s also important to provide extra spacing both horizontally and vertically around your tap targets (at least 32 pixels) to prevent users from accidentally pressing on the wrong target.

Mobile Compatibility

Perfect, no embedded objects detected.

Great, your website does not embed any special types of web content, such as Flash, Silverlight or Java, so your content can be accessed on all devices.

Font Size Legibility

Perfect, this web page’s text is legible on mobile devices.

You can find additional font recommendations for mobile devices in Google™’s typography guidelines for Android.

Mobile Viewport

Great, a configured viewport is present.

The content fits within the specified viewport size.

Great, the viewport is well configured.

Keep in mind that since the width (in CSS pixels) of the viewport may vary, your page content should not solely rely on a particular viewport width to render well. Consider these additional tips:
  • Avoid setting large absolute CSS widths for page elements.
  • If necessary, CSS media queries can be used to apply different styling depending on screen size.
  • Ideally, serve responsively-sized images.

Mobile Speed

Fast    Fast

Avoid landing page redirects

Enable compression

Minify HTML

Leverage browser caching

Reduce server response time

Your mobile/responsive website is adapted to high latency mobile networks. It is possible to make it even faster using PageSpeed and/or by implementing SPDY protocol.

Mobile Frameworks

No mobile frameworks have been detected.

Mobile or responsive frameworks are an important part of website optimization as they assist developers in creating applications which are applicable to multiple devices.




Length: 7 character(s)


Keep your URLs short and avoid long domain names when possible.

A descriptive URL is better recognized by search engines. A user should be able to look at the address bar and make an accurate guess about the content of the page before reaching it (e.g., http://www.mysite.com/en/products).

Keep in mind that URLs are also an important part of a comprehensive SEO strategy. Use clean URLs to make your site more "crawlable" by Google™.

Resource: Search for a good domain name. If no good names are available, consider a second hand domain. To prevent brand theft, you might consider trademarking your domain name.


Great, your website has a favicon.


Favicons improve a brand's visibility. As a favicon is especially important for users bookmarking your website, make sure it is consistent with your brand.

Resource: Check out this amazing idea.

Great, your website has a favicon. Make sure this favicon is consistent with your brand.

Resource: Check out this amazing idea for improving the user experience with a special favicon.

Add a Favicon

Custom 404 Page

Great, your website has a custom 404 error page.


Take advantage of the opportunity to provide a beautiful 404 Error Page for your visitors.

Customize the 404 error page

Page Size

152.6 KB (World Wide Web average is 320 Kb)


Two of the main reasons for an increase in page size are images and JavaScript files.

Page size affects the speed of your website; try to keep your page size below 300 Kb.

Tip: Use images with a small size and optimize their download with gzip.

Load Time

1.08 second(s) (140.73 kB/s)


Your website is too slow. Slow page load time is one of the biggest complaints of web users.

Page speed can not only affect visitor engagement, retention, and conversion rates, but it can also affect your rankings.

High load times can be caused by a number of things, including pages with poor code optimization (cache, Mysql queries, etc.), server problems, network problems, or third-party issues (advertising codes, analytics codes, etc.).

Site speed is an important factor for ranking high in Google™ search results.


Check out Google™'s developer tutorials for tips on how to to make your website run faster.

Monitor your server and receive SMS alerts when your website is down with a website monitoring tool.

Speed-up your website


Declared: English (United States)

Detected: English


Great, you have declared the language.

Make sure your declared language is the same as the language detected by Google™.

Tips for multilingual websites:

  • Define the language of the content in each page's HTML code.
  • Specify the language code in the URL as well (e.g., "mywebsite.com/fr/mycontent.html").

Declare the language used

Structured Data Markup

No Structured Data Markup has been detected

Structured Data Markup is used to generate Rich Snippets in search engine results. It is a way for website owners to send structured data to search engine robots; helping them to understand your content and create well-presented search results.

Google™ supports a number of rich snippets for content types, including: Reviews, People, Products, Businesses and Organizations, Recipes, Events , Videos, and Music. If your website covers one of these topics, then we suggest that you annotate it with Schema.org using microdata.

Domain Availability

Domains (TLD) Status
mozilla.com Expires 4 months ago
mozilla.net Expires 11 days ago
mozilla.info This domain is booked
mozilla.biz Expires 7 months ago
mozilla.eu This domain is booked

Register the various extensions of your domain to protect your brand from cybersquatters.

Typo Availability

Domains (TLD) Status
zddons.mozilla.org Available. Register it now!
asdons.mozilla.org This domain is booked
adsons.mozilla.org This domain is booked
addins.mozilla.org This domain is booked
addona.mozilla.org Available. Register it now!
adons.mozilla.org This domain is booked
addoons.mozilla.org This domain is booked

Register the various typos of your domain to protect your brand from cybersquatters.

Email Privacy

Good, no email address has been found in plain text.


We don’t recommend adding plain text/linked email addresses to your webpages, as malicious bots scrape the web in search of email addresses to spam. Instead, consider using a contact form.

Hide email addresses to avoid being spammed

Trust Indicators


94%    94%

Vendor reliability

94%    94%


94%    94%

Child safety

94%    94%

This ‪‬‬data is provided by WOT™.


Server Uptime

Upgrade now and get notified when addons.mozilla.org goes down.
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Server IP

Server location: MOUNTAIN VIEW


Your server's IP address has little impact on your SEO. Nevertheless, try to host your website on a server which is geographically close to your visitors. Search engines take the geolocation of a server into account as well as the server speed.

Use DNSstuff for comprehensive reports on your server.



Get to know the technologies used for your website. Some codes might slow down your website. Ask your webmaster to take a look at this.

Speed Tips

Congratulations! Your website's speed is fully optimized.

Perfect, your server is using a caching method to speed up page display. 

Perfect, your website doesn't use nested tables.

Perfect, your website does not use inline styles.

Perfect, your website has few CSS files.

Perfect, your website has few JavaScript files.

Too bad, your website does not take advantage of gzip.


Website speed has a huge impact on performance, affecting user experience, conversion rates and even rankings. ‪‬‬By reducing page load-times, users are less likely to get distracted and the search engines are more likely to reward you by ranking your pages higher in the SERPs.

Conversion rates are far higher for websites that load faster than their slower competitors.

See Google's PageSpeed Insights Rules for more information on how to improve each of the elements in this section.



Web analytics let you measure visitor activity on your website. You should have at least one analytics tool installed, but It can also be good to install a second in order to cross-check the data.

Popular Analytics Tools Include: Google™ Analytics, Quantcast™, AdobeAnalytics™, Piwik™, chartbeat™, Clicky™, ClickTale™, etc.

W3C Validity

Invalid: 13 Errors, 4 Warning(s)


W3Cis a consortium that sets web standards.

Using valid markup that contains no errors is important because syntax errors can make your page difficult for search engines to index. Run the W3C validation service whenever changes are made to your website's code.

Use valid markup that contains no errors. Syntax errors can make your page difficult for search engines to index.

To find the detected errors, run the W3C validation service, or check Validator.nu to make sure you don't miss an error.

W3C is a consortium that sets web standards.

Fix the errors in the code syntax




The Doctype is used to instruct web browsers about the document type being used. For example, what version of HTML the page is written in.

Declaring a doctype helps web browsers to render content correctly.


Great, language/character encoding is specified: UTF-8


Specifying language/character encoding can prevent problems with the rendering of special characters.

Crawl Errors

URL Errors

The Crawl Errors report for websites provides details about the site URLs that Google could not successfully crawl or that returned an HTTP error code.
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Facebook Views

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  • Views
  • Activity
  • Demographics and more!
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Facebook Page

Meta Description
Add-ons are installable enhancements to the Mozilla Foundation's projects, and projects based on them. Add-ons allow the user to add or augment application features, use themes to their liking, and handle new types of content.Types of add-onsExtensionsExtensions can be used to modify the behavior of existing features to the application or add entirely new features. Extensions are especially popular with Firefox, because Mozilla developers intend for the browser to be a fairly minimalistic application in order to reduce software bloat and bugs, while retaining a high degree of extensibility, so that individual users can add the features that they prefer.Extension technologies CSS (Cascading Style Sheets) DOM (Document Object Model) – Used to change XUL in real-time or to edit HTML that is currently loaded JavaScript – The primary language of Mozilla browsers XPCOM (Cross-Platform Component Object Model) XPConnect XPI (Cross-Platform Installer) XUL (XML User Interface Language) – Used to define the UI (User Interface) and interaction with user.Mozilla Jetpack – a development kit aiming to lower the learning curve and development time for making add-ons.
The data relating to the Facebook Page is publicly available.

Twitter™ Account

The Twitter™ Account @addons_mozilla is available. Register it now!


Twitter is a fast-growing social network.

If possible, register a Twitter account in your brand's name now to prevent brandjacking.

Here are a few tips to help create a Twitter promotion plan. Plus, learn from today's top Twitter-using brands.

Book your brand on Twitter

Google+ Page

This page is your business listing in Google+. Being active in this social network is important for claiming your brand, influencing your search engine rankings and interacting with your network. You might also consider managing your profile with Google My Business (formerly Google Places).


Local Directories

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SERP Checker

Google™ Ranking

Upgrade to monitor addons.mozilla.org’s Google ranking for custom keywords
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Traffic Estimations

Very High    Very High

We use multiple tools to estimate web traffic, including Google™ Trends and Alexa™.

Nevertheless, your analytics will provide the most accurate traffic data.


Upgrade to sync your Google Analytics account and find significant metrics like:
  • Traffic Source
  • Source Domains
  • Pageviews and more!
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Traffic Rank

139th most visited website in the World

122th most visited website in  United States


A low rank means that your website gets a lot of visitors.

Your Alexa Rank is a good estimate of the worldwide traffic to your website, although it is not 100 percent accurate.

Reviewing the most visited websites by country can give you valuable insights.

Quantcast provides similar services.

Adwords Traffic

0%    0%

This is an estimation of the traffic that is being bought through AdWords™ vs. unpaid Organic Traffic.

This data is provided by SEMRush™.

Visitors Localization

Popular Countries ccTLD Status
United States mozilla.us This domain is booked
India mozilla.in This domain is booked
Germany mozilla.de This domain is booked
Russia mozilla.ru This domain is booked
Iran mozilla.ir This domain is booked
Italy mozilla.it This domain is booked

‬We recommend that you book the domain names for the countries where your ‪‬website is popular. This will prevent potential competitors from registering these domains and taking advantage of your reputation in such countries.