Map.purpleair.com - SEO Checker

Sign up for free! PDF Export
Overview of the SEO Check
Meta information
79% 
Page quality
43% 
Page structure
58% 
Link structure
25% 
Server
36% 
External factors
100% 
SEO Score
Response time
0.59 s
File size
13.30 kB
Words
30
Media files
3
Number of links
1 internal / 9 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Real-Time Air Quality Map | PurpleAir
The length of the page title is perfect. (334 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
Real time measurement of air quality on a public map. Useful to community scientists or air quality professionals alike, PurpleAir sensors are easy to install, requiring only a power outlet and WiFi.
The meta description is too long: 1199 pixels from max. 1000 pixels. Optimize description
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
No canonical link is specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en
Server location: United States of America
The following language is defined by HTML: en
Alternate/Hreflang Links
(Somewhat important)
There are no alternate links specified on this page.
Other meta tags
(Somewhat important)
There is no rel next meta tag on this page.
There is no rel prev meta tag on this page.
Domain
(Somewhat important)
This page is hosted on a subdomain. Use a top level domain for better SEO results.
The domain does not contain non-latin characters.
Page URL
(Somewhat important)
No parameters were found in the URL.
No session ID was found in the URL.
The URL does not have too many subdirectories.
Charset encoding
(Somewhat important)
The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
The favicon is linked correctly.

Meta tags

NameValue
mobile-web-app-capableyes
theme-color#ffffff
application-nameReal-Time Air Quality Map | PurpleAir
apple-mobile-web-app-capableyes
apple-mobile-web-app-status-bar-styleblack-translucent
apple-mobile-web-app-titlePurpleAir
msapplication-TileColor#aa44aa
msapplication-TileImage/mstile-144x144.png?12345
msapplication-config/browserconfig.xml
descriptionReal time measurement of air quality on a public map. Useful to community scientists or air quality professionals alike, PurpleAir sensors are easy to install, requiring only a power outlet and WiFi.
viewportinitial-scale=1,maximum-scale=1,user-scalable=no
facebook-domain-verification80ync8g4hkawdlasvkyo5kf0rafcus
langen
charsetutf-8

Test up to 1.000 webpages of map.purpleair.com with our free plan!

Try For Free
No trial. It's just free!

Page quality

Content
(Critically important)
There are only 30 words on this page. Use at least 250 words to provide useful information.
Some words from the page title are not used within the pages content
No paragraphs were detected.
26.7% of the text are stop words.
The page contains a listing, which indicates a good text layout.
No placeholders texts or images were found.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
A viewport "initial-scale=1,maximum-scale=1,user-scalable=no" is provided.
At least one Apple touch icon is specified.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 6 tags for this page.
Image SEO
(Somewhat important)
2 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.
Additional markup
(Nice to have)
No additional page markup was found.
HTTPS
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Media list

URLAlt attributeTitle
/assets/brand/logo_white.svgPurpleAir
/assets/images/add2home.svgNo alt attribute provided
/assets/images/share.svgNo alt attribute provided

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
Headings
(Important)
There are no headings specified on the page. Headings are important for search engine optimization and help to structure your content.

Heading structure

No headings were found.
This page seems to be an entry page, because only very few links were found.
Some internal links have dynamic parameters. All internal URLs, which are not marked as nofollow, should not contain dynamic parameters.
Every linktext is unique.
None of the anchor texts is too long.
There are 9 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.purpleair.com/External Subdomain PurpleAir
IMG-ALT PurpleAir
https://www.purpleair.com/tech...External Subdomain Our Technology
https://www.purpleair.com/faqExternal Subdomain Frequently Asked Questions
https://www.purpleair.com/contactExternal Subdomain Contact Us
https://www.purpleair.com/termsExternal Subdomain Terms of Service
https://www.purpleair.com/privacyExternal Subdomain Privacy Policy
https://www.purpleair.com/map?...External Subdomain Map
https://www.purpleair.com/sensorsExternal Subdomain Sensors
https://www.purpleair.com/installExternal Subdomain Support
/_ah/conflogin?continue=https:...Subdomain Login

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://map.purpleair.com/"
HTTP header
(Important)
The HTML page should be transferred using GZip compression.
No X-Powered HTTP header is sent.
Performance
(Somewhat important)
The page response time of 0.59 seconds is longer than the recommended limit of 0.4 seconds. A high response time unnecessarily slows down search engine crawling and results in bad user experience as well.
The file size of the HTML document is fine (13 kB).

HTTP Response Header

NameValue
set-cookie47 Characters
expiresThu, 01 Jan 1970 00:00:00 GMT
content-typetext/html;charset=utf-8
access-control-allow-origin*
x-cloud-trace-context3877647f83eee9ad7a5828ee33e440c6
dateThu, 09 May 2024 09:09:57 GMT
serverGoogle Frontend
content-length13582
cache-controlprivate
statuscode200
http_versionHTTP/2

External factors

Blacklists
(Nice to have)
This website is not classified "for adult only".
This website has excellent links from other websites.
This page has backlinks from 844 referring domains.
This page has 662,702 backlinks.
This page has backlinks from 686 different ip addresses.
Facebook popularity
(Somewhat important)
The page has 0 shares and comments on Facebook.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

User-agent: *
Allow: /

Similar sites

Search preview

map.purpleair.com
Real-Time Air Quality Map | PurpleAir
Real time measurement of air quality on a public map. Useful to community scientists or air quality professionals alike, PurpleAir sensors are easy to install, requiring only a power outlet and WiFi.

Most important keywords

Following keywords were found. You can check the keyword optimization of this page for each keyword.

KeywordResultRecheck
PurpleAir76%Check
Map69%Check
Air Quality Map52%Check
Air Quality46%Check
Sensors46%Check
install46%Check
Real-Time Air40%Check
Add36%Check
frequently asked questions34%Check
Privacy Policy34%Check
Show more keywords and terms

Test up to 1.000 webpages of map.purpleair.com with our free plan!

Try For Free
No trial. It's just free!

Cookie Policy

We use cookies to make our site work and also for analytics and advertising purposes. You can enable or disable optional cookies as desired. See the following links for more information.

Contact | Privacy

We need these so the site can function properly

So we can better understand how visitors use our website

So we can serve you tailored ads and promotions