Colorbrewer2.org - SEO Checker

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Overview of the SEO Check
Meta information
67% 
Page quality
34% 
Page structure
97% 
Link structure
25% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.03 s
File size
7.80 kB
Words
121
Media files
2
Number of links
0 internal / 5 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
ColorBrewer: Color Advice for Maps
The length of the page title is perfect. (320 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
The meta description is missing.
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
Server location: United States of America
The language is not specified in the HTML markup.
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)
The domain is no subdomain.
The domain length is good.
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 character encoding is not specified.
The character encoding is not specified in the HTTP header.
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)
No favicon is linked in the HTML code.

Meta tags

No meta tags were found.

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Page quality

Content
(Critically important)
There are only 121 words on this page. Use at least 250 words to provide useful information.
No paragraphs were detected.
23.1% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
No placeholders texts or images were found.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No viewpoint tag is provided.
No 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)
1 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
/images/axismaps.pngAxis MapsAxis Maps
/images/GitHub-Mark-32px.pngNo alt attribute provided

Page structure

H1 heading
(Critically important)
COLORBREWER 2.0
The H1 heading is too short (15 characters). It should be at least 20 Characters long.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 COLORBREWER 2.0
H2 Export your selected color scheme:
H3 color advice for cartography
H3 Permalink
H3 Adobe
H3 GIMP and Inkscape
H3 JavaScript
H3 CSS
This page seems to be an entry page, because only very few links were found.
There are 5 external links on this page.

Found links on this page

LinkAttributesAnchor text
http://www.personal.psu.edu/ca...External Subdomain updates
http://axismaps.com/New window External IMG-ALT Axis Maps
https://github.com/axismaps/co...New window External Source code and feedback
http://colorbrewer.org/flashExternal Back to Flash version
http://www.personal.psu.edu/ca...External Subdomain Back to ColorBrewer 1.0

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://colorbrewer2.org/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
The web server transmits the web page (HTML) in compressed form.
Performance
(Somewhat important)
The page response time is excellent with 0.03 seconds.
The file size of the HTML document is fine (8 kB).

HTTP Response Header

NameValue
content-typetext/html
last-modifiedWed, 11 Mar 2020 09:22:11 GMT
serverAmazonS3
content-encodinggzip
dateThu, 17 Apr 2025 06:25:47 GMT
etagW/"4b0f3691169774eb0a3edf20dbec422c"
varyAccept-Encoding
x-cacheHit from cloudfront
via1.1 7ed0982309781d390a105a3ead66dbfa.cloudfront.net (CloudFront)
x-amz-cf-popFRA56-P2
x-amz-cf-idmFFsrJSi078Ggkvp33jCRBV8ixkXF4TQie4X6uidvDSwgAl1sOyMDw==
age26336
statuscode200
http_versionHTTP/2

External factors

This website has excellent links from other websites.
This page has backlinks from 2,884 referring domains.
This page has 49,991 backlinks.
This page has backlinks from 1,618 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

No valid Robots.txt file was found.

Similar sites

Search preview

Most important keywords

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

KeywordResultRecheck
Color77%Check
ColorBrewer73%Check
Color Advice65%Check
color scheme60%Check
Maps52%Check
Advice50%Check
scheme38%Check
EXPORT38%Check
Adobe38%Check
GIMP38%Check
Show more keywords and terms

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