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Search Engine Optimisation

Title Tag

Internet for people, not profit — Mozilla
Length: 45 character(s)

The exact limit of a Title Tag in Google SERP is 600px, but calculating your title size in px is very painful, the general recommendation for a Title Tag length is between 55 and 65 characters (up to 70 depending on characters used).

General advices :

  • Make the best possible use of the 55 to 65 characters Google displays in it's SERP,
  • Every page on your website should have a unique title,
  • Write your title with customers in mind. Title Tags are very important for SEO but you need to generate clicks from the SERP,
  • Put your important keywords towards the start of your title, as they will be given more importance by Google,
  • Make a clever use of power words to grab user's attention and create emotion,
  • Do not overuse your keywords or you risk facing troubles.

Meta Description

Did you know? Mozilla — the maker of Firefox — fights to keep the Internet a global public resource, open and accessible to all.
Length: 132 character(s)

Google truncates Meta Descriptions after 160 characters, the general recommendation is to keep a description between 150 and 160 caracters

General advices :

  • Be descriptive and make the best possible use of the 150 to 160 characters at your disposal to promote your content in SERPs,
  • Every page on your website should have its own unique Meta Description,
  • Do not use quotes, if Google encounters a quote is trucates the description,
  • Meta Desription per se is NOT a ranking factor, there is no point in spamming your keywords in it,
  • Click Throught Rate in the SERP is a minor ranking factor in the eyes of Google so you should work hard to make your meta descriptions appealing as possible for the user and create emotion.

Tip : Take a look at the ads targeting your audience, generally big adwords spender A/B test their ad description to define which one converts better. Use their experiments at your advantage to increase your CTR but remember to do some testing on yourside too.

Google Preview

Internet for people, not profit — Mozilla

Did you know? Mozilla — the maker of Firefox — fights to keep the Internet a global public resource, open and accessible to all.

This is a preview of how your page should display in Google SERPs. In some cases Google can decide to override your settings to display something else.

General Advice :

  • Make your snipset as appealing as possible to increase your CTR.

WWW Resolve

Great, a 301 redirect is in place to redirect traffic from your non-preferred domain. domain.

All website pages should be accessible through one and only one URL.

By default a website is accessible using the www and non-www version of a URL, this can easily be fixed by adding some lines of code in your Apache .htaccess file.

If you do not use this redirection search engines may treat the www and non-www versions of the domain as separate references to separate pages, and you will face duplicate content and canonilization issues.

Tip: The principle applies to http vs https connections, make sure you redirect your website properly.


Good, you have declared your language
Declared Language: English

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<H1> <H2> <H3> <H4> <H5> <H6>
0 7 12 1 2 0
<H2> Mozilla </H2>
<H2> Internet for people, not profit. </H2>
<H2> Unleash your Internet </H2>
<H2> Your web, how you like it, everywhere </H2>
<H2> Pocket for Firefox </H2>
<H2> Our impact </H2>
<H2> Our innovations </H2>
<H3> Firefox </H3>
<H3> Pocket </H3>
<H3> Internet Health </H3>
<H3> Technology </H3>
<H3> About Us </H3>
<H3> Get Involved </H3>
<H3> Hi. We’re Mozilla, the proudly non-profit champions of the Internet, helping to keep it healthy, open and accessible to all. </H3>
<H3> Add-ons </H3>
<H3> Careers </H3>
<H3> Need help? </H3>
<H3> Love the Web? </H3>
<H3> Thanks! </H3>
<H4> Get the Mozilla newsletter and help us keep it open and free. </H4>
<H5> Mozilla </H5>
<H5> Firefox </H5>

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Keywords Cloud

  • firefox27
  • download16
  • islands14
  • island12
  • internet9
  • mozilla9
  • windows8
  • about7
  • english7
  • browser6
  • privacy6
  • open6
  • system6
  • meet6
  • saint6

Keyword cloud is a quick rappresentation of the keywords with the highest number of occurencies in your page content.

Keywords Consistency

Keywords Freq Title Desc <H>
firefox 27 False True True
download 16 False False False
islands 14 False False False
island 12 False False False
internet 9 True True True
mozilla 9 True True True
windows 8 False False False
about 7 False False True
english 7 False False False
browser 6 False False False
privacy 6 False False False
open 6 False True True
system 6 False False False
meet 6 False False False
saint 6 False False False
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Text/HTML Ratio

The HTML to Text Ratio of your page is: 8.88%

Total textual content size 8830 bytes
Total HTML size 99451 bytes

Text to HTML ratio rappresent the amount of text on your web page compared to the total amount of code. General recommendation is to maintain text/HTML ratio between 25% and 70%.

While text to HTML is not directly a ranking factor, a good ratio generally mean that the website:

  • is built with the final user in mind
  • has a better loading speed and general user experience
  • will be crawled and indexed more efficiently by search engine

Embedded Objects

Perfect, no embedded objects has been detected on this page

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Perfect, no Iframe content has been detected on this page

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Alt Attribute

We detected 4 images on this page
False 4 ALT attributes are empty or missing.


Google uses image's alt text to understand what an image represents but also to determine surrounding text topic.

General Advice:

  • Make your alt text descriptive of the actual image as alt text is also used by programs for blinded people.
  • Do not overuse your keywords

Tip : If you want to rank your images in Google Image SERPs you should work on your image file name & title, consider adding a caption and create an image .xml sitemap.

On-Page Links

We found a total of 75 links including both internal & external links of your site

Anchor Type Follow
MozillaInternal LinksDofollow
FirefoxInternal LinksDofollow
Internet HealthInternal LinksDofollow
TechnologyInternal LinksDofollow
About UsInternal LinksDofollow
Get InvolvedInternal LinksDofollow
requirementsInternal LinksDofollow
Download FirefoxInternal LinksDofollow
Firefox Privacy NoticeInternal LinksDofollow
DesktopInternal LinksDofollow
iOSInternal LinksDofollow
AndroidInternal LinksDofollow
FocusInternal LinksDofollow
Developer EditionInternal LinksDofollow
FeaturesInternal LinksDofollow
Privacy & SecurityInternal LinksDofollow
OpennessInternal LinksDofollow
DecentralizationInternal LinksDofollow
Digital InclusionInternal LinksDofollow
Web LiteracyInternal LinksDofollow
Mozilla DevelopersInternal LinksDofollow
Our MissionInternal LinksDofollow
Our HistoryInternal LinksDofollow
LeadershipInternal LinksDofollow
FoundationInternal LinksDofollow
Contact UsInternal LinksDofollow
EventsInternal LinksDofollow
Get started with SyncInternal LinksDofollow
Try the Lean Data ToolkitInternal LinksDofollow
this Privacy NoticeInternal LinksDofollow
Download FirefoxInternal LinksDofollow
Beta, Nightly, Developer EditionInternal LinksDofollow
Website Privacy NoticeInternal LinksNofollow
CookiesInternal LinksNofollow
LegalInternal LinksNofollow
Creative Commons licenseInternal LinksDofollow
PocketExternal LinksDofollow
Windows (XP/Vista)External LinksDofollow
WindowsExternal LinksDofollow
Windows 64-bitExternal LinksDofollow
macOSExternal LinksDofollow
LinuxExternal LinksDofollow
Linux 64-bitExternal LinksDofollow
AndroidExternal LinksDofollow
iOSExternal LinksDofollow
requirementsExternal LinksDofollow
these instructionsExternal LinksDofollow
SupportExternal LinksDofollow
Facebook privacy tips: How to share without oversharingExternal LinksDofollow
Don’t Get Pwned: A Guide to Safer LoginsExternal LinksDofollow
MDNExternal LinksDofollow
A new CSS Grid demoExternal LinksDofollow
Lots new in Firefox, including support for WebAssemblyExternal LinksDofollow
BlogsExternal LinksDofollow
CareersExternal LinksDofollow
GiveExternal LinksDofollow
Get pocketExternal LinksDofollow
Stand Up For EncryptionExternal LinksDofollow
Teach The WebExternal LinksDofollow
Read our Internet Health ReportExternal LinksDofollow
Gaming on the WebExternal LinksDofollow
Virtual Reality PlatformExternal LinksDofollow
ServoExternal LinksDofollow
RustExternal LinksDofollow
Add-ons Compare prices, check the weather, listen to music, send a tweet and more right from Firefox.External LinksDofollow
Careers Learn about the benefits of working at Mozilla and view open positions around the world.External LinksDofollow
Need help? Get answers to your questions about Firefox and all Mozilla products from our support team.External LinksDofollow
DonateExternal LinksDofollow
Contribute to this siteExternal LinksDofollow
Twitter (@mozilla)External LinksDofollow
Facebook (Mozilla)External LinksDofollow
Instagram (@mozillagram)External LinksDofollow
Twitter (@firefox)External LinksDofollow
Facebook (Firefox)External LinksDofollow
YouTube (firefoxchannel)External LinksDofollow
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Underscores in the URLs

Great, you are not using underscores (these_are_underscores) in your URLs

Best practice in URLs is to use a dash (-) instead of underscores as a word separator.

When Google indexes a URL it considers the dash as a word separator while the underscore (_) has the effect of grouping words. This comes from Google programmers wanting to be able to search for exact programing terms, underscores were therefor used to group terms.

Sites like Wikipedia have a lot of URLs with underscore and this does not stop them from ranking high, but, as Matt Cutts recommended, if you start a new site then you should go for the dash choice in the first place.


Good, you have Robots.txt file!

The robots.txt file provides instructions to specific crawlers about the content that should and shouldn't be crawled on a website or on a server.

If your site does not possess a robots.txt file then a Crawler will be allowed to scan and index everything it finds on a server.

While not possessing a robots.txt file can be fine for some websites, using it to declare a sitemap.xml file location is considered a best practice.

XML Sitemap

Good, you have XML Sitemap file!

Sitemaps are very usefull to help index your pages correctly. Today all major search engines make use of XML sitemaps in their crawling process to be informed immediately about new content on your site. However beeing informed of a new page doesn't mean that a spider will rush to your site in the minute.

Tip: Remember to declare your sitemap location in your robots.txt file.

Indexed Pages

Indexed pages in search engines

1,080,000 Page(s)

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Backlinks Counter

Number of backlinks to your website

118,615 Backlink(s)

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Mobile Friendlyness

Mobile Friendliness

Awesome! This page is mobile-friendly!
Your mobile friendly score is 100/100

Your costumers look for you from their smartphones and tablettes don't miss on them!

Tip : Google annouced early 2016 that due to the evergrowing use of mobile devices to access the web it will soon be switching its main index to the mobile index. At that moment not having a responsive website will have a negative impact on your rankings. You should fix this issue as soon as possible.

Mobile View

A simple display of how your website looks on a smartphone.

Mobile Compatibility

Perfect, no embedded objects detected.

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User experience

Safe Browsing

The website is not blacklisted and looks safe to use.

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Length: 7 characters

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FavIcon Great, your website has a favicon.

Favicon are usefull for User experience, they allow a quicker navigation when using tabs in a browser but also when viewing bookmarked pages.

Tip : You favicon must be clear, neet, eye catching and brand oriented.

Custom 404 Page

Great, your website has a custom 404 error page.

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Page Size

97 KB (World Wide Web average is 320 Kb)

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Load Time

0.39 second(s)

A website should always load as fast as possible. Loading speed is an important issue. On big e-commerce website a tenth of a second can have an important impact on the site's revenue.

General Reccomendation : Pages should load in less than 2 seconds (3 seconds maximum) when served to your user location.

W3C Validity

W3C not validated

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Domain Availability

Domains (TLD) Status Already Registered Already Registered Already Registered Already Registered Already Registered

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Typo Availability

Domains (TLD) Status Already Registered Already Registered Available Already Registered Already Registered

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Email Privacy

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

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Server and technology

Speed Tips

Tips for authoring fast-loading HTML pages:

True Perfect, your website has few CSS files.

False Too bad, your website has too many JavaScript files.

True Perfect, your website doesn't use nested tables.

True Perfect, your website doesn't use inline styles.

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Doc Type

Your Web Page doctype is HTML 5

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

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GZIP compression Test

Aouch! GZIP is not enabled on your site.
False Your webpage size is 97 KB and could be compressed up to 20 KB using GZIP (79.3 % size savings)

GZIP generally saves between 50% and 80% of your server bandwith by serving compressed files . It also have an important impact on your website performances.

URL Rewrite

Good, all URLs look clean and friendly

Google is able to scan and index your site if your pages use clean URLs but it is also capable of doing so if they are served by ugly URLs. The best SEO practice is to activate URL rewriting on your site to server clean URL that include your main keyword.

4 advantages of rewriting your URLs:

  • Display to the user URLs that are easy to remember,
  • Allows the webmaster to change a website content architecture while maintaining existing URLs,
  • Allows to diplay keywords in URLs which is a small SEO factor
  • Hide the real URL structure to potential hackers helping protect your website.

Tip: Keep your URLs short

Server IP

Server IP Server Location Service Provider United States Mozilla Corporation

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IP Canonicalization

Your domain IP is redirected to

IP canonicalization is important for SEO has it fixes duplicate content issues.

Every website resolves to a particular IP address on a hosting machine. This means that your website is accessible through it's domain name but also by its IP address.

Duplicate content issues appear when your website's IP address and domain name serve the same code but do not resolve to the same URL.

Important notification : IP Canonicalisation is not available for website that share an IP address with other website (it is the case for shared hosting). To activate IP canonicalisation you need to order a dedicated IP also called failover IP.

Domain Registration

Exactly how many years and months

Domain Age: 19 Years, 240 Days

Created Date: 24th-Jan-1998

Updated Date: 22nd-Dec-2016

Expiry Date: 23rd-Jan-2019

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WHOIS domain information can help you determine the proper administrator, billing and technical
contact information.

Domain Name: MOZILLA.ORG
Registry Domain ID: D1409563-LROR
Registrar WHOIS Server:
Registrar URL:
Updated Date: 2016-12-22T10:04:31Z
Creation Date: 1998-01-24T05:00:00Z
Registry Expiry Date: 2019-01-23T05:00:00Z
Registrar Registration Expiration Date:
Registrar: MarkMonitor Inc.
Registrar IANA ID: 292
Registrar Abuse Contact Email:
Registrar Abuse Contact Phone: +1.2083895740
Domain Status: clientDeleteProhibited
Domain Status: clientTransferProhibited
Domain Status: clientUpdateProhibited
Registry Registrant ID: C49620406-LROR
Registrant Name: DNS Admin
Registrant Organization: Mozilla Corporation
Registrant Street: 331 E. Evelyn Ave
Registrant City: Mountain View
Registrant State/Province: CA
Registrant Postal Code: 94041
Registrant Country: US
Registrant Phone: +1.6509030800
Registrant Phone Ext:
Registrant Fax:
Registrant Fax Ext:
Registrant Email:
Registry Admin ID: C49620406-LROR
Admin Name: DNS Admin
Admin Organization: Mozilla Corporation
Admin Street: 331 E. Evelyn Ave
Admin City: Mountain View
Admin State/Province: CA
Admin Postal Code: 94041
Admin Country: US
Admin Phone: +1.6509030800
Admin Phone Ext:
Admin Fax:
Admin Fax Ext:
Admin Email:
Registry Tech ID: C49620406-LROR
Tech Name: DNS Admin
Tech Organization: Mozilla Corporation
Tech Street: 331 E. Evelyn Ave
Tech City: Mountain View
Tech State/Province: CA
Tech Postal Code: 94041
Tech Country: US
Tech Phone: +1.6509030800
Tech Phone Ext:
Tech Fax:
Tech Fax Ext:
Tech Email:
Name Server: NS5-65.AKAM.NET
Name Server: NS7-66.AKAM.NET
Name Server: NS4-64.AKAM.NET
Name Server: NS1-240.AKAM.NET
DNSSEC: signedDelegation
URL of the ICANN Whois Inaccuracy Complaint Form:
>>> Last update of WHOIS database: 2017-09-20T18:51:20Z <<<
For more information on Whois status codes, please visit
Access to Public Interest Registry WHOIS information is provided to assist persons in determining the contents of a domain name registration record in the Public Interest Registry registry database. The data in this record is provided by Public Interest Registry for informational purposes only, and Public Interest Registry does not guarantee its accuracy. This service is intended only for query-based access. You agree that you will use this data only for lawful purposes and that, under no circumstances will you use this data to: (a) allow, enable, or otherwise support the transmission by e-mail, telephone, or facsimile of mass unsolicited, commercial advertising or solicitations to entities other than the data recipient's own existing customers; or (b) enable high volume, automated, electronic processes that send queries or data to the systems of Registry Operator, a Registrar, or Afilias except as reasonably necessary to register domain names or modify existing registrations. All rights reserved. Public Interest Registry reserves the right to modify these terms at any time. By submitting this query, you agree to abide by this policy.

WHOIS Data provides informations about a domain owner, registrant and Nameservers

Social Medias

Social Data

Your social media status

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We didn't detect an analytics tool installed on this website.

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Traffic Rank

125th most visited website in the World.

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Visitors Localization

Your website is popular on following countries:

Countries Percent of Visitors
United States9.6%

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Estimated Worth

$18,497,748 USD

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