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Whois & Analysis for purpleair.com

Dec 6, 2019 10:25 pm UTC

DOMAIN OWNER WHOIS

The owner has chosen to keep his whois contact information private.
• Contact Name
Contact Privacy
• Organization
MyPrivacy.net Ltd.
• Address
4243C Dundas St. W., Suite 405
• City
Etobicoke
• Zip Code
M8X 1Y3
• State
ON
• Country Code
CA
• Phone Number
• Domain Registrar
Desktop screen Desktop screenshot for purpleair.com
59

7 criteria passed
4 criteria to solve

PERFORMANCE OPPORTUNITIES

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OVERVIEW

• Domain Owner
Private
• Category
Technology & Computing  >  Computer Networking
• Online since
September 28, 2015 Explore Wayback Machine
• Age
9 years, 1 month, 9 days
• Alexa Rank
#80.092, purpleair.com is in the world's top 100.000 websites!

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TECHNICAL SEO & SECURITY

Redirection
purpleair.com redirects to https://www2.purpleair.com
SSL Certificate
This website is not SSL secured (HTTPS). Consider adding a free SSL Certificate.
Title Tag
PurpleAir | Real Time Air Quality Monitoring
Length: 44 (recommended: 10 to 70)
Meta Description
A low cost air quality sensor network providing real time measurement of air quality on a public map. Useful to citizen scientists or air quality professionals alike, PurpleAir sensors are easy to install, requiring only a power outlet and WiFi.
Length: 245 (recommended: 50 to 160)
Google preview
Desktop Version

PurpleAir | Real Time Air Quality Monitoring

http://purpleair.com

A low cost air quality sensor network providing real time measurement of air quality on a public map. Useful to citizen scientists or air quality professionals alike...

Mobile Version

http://purpleair.com

PurpleAir | Real Time Air Quality Monitoring

A low cost air quality sensor network providing real time measurement of air quality on a public map. Useful to citizen scientists...

Encoding
Great, language/character encoding is specified: utf-8
URL Resolve

No 301 redirects are in place to redirect traffic to your preferred domain. Pages that load successfully both with and without www. are treated as duplicate content! Not all versions of your page point to the same URL.

URL Parameters
Great, the domain URLs look clean.
Attribute Value
viewport width=device-width,initial-scale=1

SEMANTIC ANALYSIS

The results of our semantic analysis are shown below using the website's language.

They are the main concepts covered by purpleair.com.

Each concept has a confidence score. The higher it is, the more important the topic is relative to the page.

Topics
Wi-Fi Confidence: 81% Arrow up

Wi-Fi or WiFi is a technology for wireless local area networking with devices based on the IEEE 802.11 standards.

Wi-Fi is a trademark of the Wi-Fi Alliance, which restricts the use of the term Wi-Fi Certified to products that successfully complete interoperability certification testing.

Wireless sensor network Confidence: 77% Arrow up

Wireless sensor networks (WSN), sometimes called wireless sensor and actuator networks (WSAN), are spatially distributed autonomous sensors to monitor physical or environmental conditions, such as temperature, sound, pressure, etc.

and to cooperatively pass their data through the network to a main location.

The more modern networks are bi-directional, also enabling control of sensor activity.

The development of wireless sensor networks was motivated by military applications such as battlefield surveillance; today such networks are used in many industrial and consumer applications, such as industrial process monitoring and control, machine health monitoring, and so on.

Air pollution Confidence: 71% Arrow up

Air pollution occurs when harmful substances including particulates and biological molecules are introduced into Earth's atmosphere.

It may cause diseases, allergies or death in humans; it may also cause harm to other living organisms such as animals and food crops, and may damage the natural or built environment.

Human activity and natural processes can both generate air pollution.

Citizen science Confidence: 70% Arrow up

Citizen science (CS; also known as crowd science, crowd-sourced science, civic science, volunteer monitoring or networked science) is scientific research conducted, in whole or in part, by amateur (or nonprofessional) scientists.

Citizen science is sometimes described as "public participation in scientific research," participatory monitoring and participatory action research.

Sensor Confidence: 70% Arrow up

In the broadest definition, a sensor is an electronic component, module, or subsystem whose purpose is to detect events or changes in its environment and send the information to other electronics, frequently a computer processor.

A sensor is always used with other electronics, whether as simple as a light or as complex as a computer.

WEBSITE SPEED

purpleair.com website speed is fast. Page speed is important for visitors and search engines.

Get insights to improve your page loading time.

Page Loading Time

0.5s

This domain loads at the median speed of 0.5 seconds.

Speed Percentile

95%

purpleair.com is faster than approximately 95 percent of the web. Your website page speed needs to be as fast as you can make it, without compromising the customer experience.

A good goal to achieve is a loading time of 2 seconds on desktop and mobile devices.

PAGESPEED INSIGHTS

Page on which speed is tested live:

Chrome User Experience Report Results

Lighthouse Results

TRAFFIC

This website is ranked #80.092 by Alexa.

This rank is traffic based. The lower the rank is, the better the domain is ranked.

Daily visitors by country

  • purpleair.com daily visitors distribution - Total: 1 country
  • Flag for United States of AmericaUnited States of America (95.4%)
  • Flaf icon for other countryOthers (4.6%)

Traffic country ranks

Country Rank
Flag for United States of AmericaUnited States of America #15.739

LAYOUT

Doctype HTML5 Arrow Responsive website, mobile-friendly. Arrow

Mobile Rendering

This website seems to be optimized for Mobile Visitors.

Phone
How purpleair.com looks like on a mobile device such as an iPhone.

Tablet
How purpleair.com looks like on a tablet such as an iPad.

Main colors used

These are the main HTML color codes used by this website. Arrow
  • 19% #ffffff
  • 18% #808090
  • 11% #9090a0
  • 10% #707080
  • 9% #f0f0f0
  • 6% #a0b0c0
  • 5% #90a0b0
  • 5% #a040a0
  • 4% #b0c0d0
  • 4% #a0a0b0
  • 3% #b040b0
  • 1% #e0f0f0

Text/code ratio

purpleair.com's text/code ratio is 2.53%. It's a bit low. Consider raising it by adding more text content of value for your visitors, or keeping your code clean.
Text / Code Ratio 2.53%

A good text to HTML ratio is anywhere from 25 to 70%.

This percentage refers to the visible text ratio, as opposed to HTML elements, image tags and other non-visible information.

Main HTML tags

Headings Arrow up

Great, we found headings on this page.

  • <H1> 0
  • <H2> 3
  • <H3> 0
  • <H4> 0
  • <H5> 0
  • <H6> 0

However, you have not defined a top level heading, or <H1>. It is used to define the most important heading.

We recommend using one top level heading to set up a semantic relationship between that heading and the remainder of the content on a page. It clearly describes to the readers and the search engines what it is about.

<H2>
2nd level heading
Purpleair: real time air quality monitoring
A proven air quality monitoring solution for home enthusiasts and air quality professionals alike
Air quality sensors
Alt attributes Arrow up

We found 16 images on this website.
3 ALT attributes are missing on your image tags. The issue affects 2 actual different images that could be loaded more than once in your page.

Alternative text allows you to add a description to an image.

Google rely on alternative text attributes to determine relevance to a search query. Alternative text also makes an image more likely to appear in a Google image search.

It looks like you're missing alternative text for 3 images on purpleair.com. Check your website to make sure it's specified for each image on the page.

SOCIAL MEDIA PRESENCE

This is an overview of your homepage shares on social networks.

You're doing quiet good on social media!

Social shares are a key signal, among many others, that search engines use to evaluate the rankings of a website. Asking people to share your pages, adding visible social share buttons and make great quality content are 3 of the most powerful ways to grow your social presence.

  • Facebook iconFacebook
  • Total Engagement 983
  • Likes 479
  • Shares 212
  • Comments 292

DOMAIN REGISTRAR

Domain Registrar EASYDNS TECHNOLOGIES INC.
Registration Date 09/28/2015 9 years, 1 month, 9 days ago
Last Modified 07/01/2018 6 years, 4 months, 8 days ago
Expiration Date 09/28/2021 Expired
Nameservers Arrow up
Host IP Address Country
dns1.zoneedit.com 45.77.82.193 Flag for United StatesUnited States
dns2.zoneedit.com 45.79.110.158 Flag for United StatesUnited States
dns3.zoneedit.com 45.76.95.243 Flag for GermanyGermany

SERVER DETAILS

Server map
  • Service Provider (ISP)
  • easyDNS Technologies, Inc.
  • IP Address
  • 64.68.202.11
  • Country
  • Flag for CanadaCanada
  • Region
  • Ontario , Toronto
  • Latitude and Longitude
  • 43.6364 : -79.4259
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