App.diagrams.net - SEO Checker

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Overview of the SEO Check
Meta information
93% 
Page quality
38% 
Page structure
100% 
Link structure
0% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.26 s
File size
2.70 kB
Words
61
Media files
1
Number of links
0 internal / 0 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Flowchart Maker & Online Diagram Software
The length of the page title is perfect. (397 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
draw.io is free online diagram software for making flowcharts, process diagrams, org charts, UML, ER and network diagrams
The length of the meta description is perfect. (766 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://app.diagrams.net/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: en
Server location: Canada
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)
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 character encoding is not specified in the HTTP header.
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
Descriptiondraw.io is free online diagram software for making flowcharts, process diagrams, org charts, UML, ER and network diagrams
Keywordsdrawio, diagram, online, flow chart, flowchart maker, uml, erd
viewportwidth=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no
msapplication-configimages/browserconfig.xml
mobile-web-app-capableyes
theme-color#d89000
Content-Typetext/html; charset=UTF-8
charsetutf-8

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Page quality

Content
(Critically important)
There are only 61 words on this page. Use at least 250 words to provide useful information.
Only 1 paragraph/s was/were found on this page.
The average number of words per sentence of 8.5 words is low.
24.6% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
Words from the H1 heading are used in the page content.
No placeholders texts or images were found.
There are no duplicates on the site.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
A viewport "width=device-width, initial-scale=1.0, maximum-scale=1.0, 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)
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
https://app.diagrams.net/images/spin.gifNo alt attribute provided

Page structure

H1 heading
(Critically important)
Flowchart Maker and Online Diagram Software
The H1 heading is perfect.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 Flowchart Maker and Online Diagram Software
H2 Loading...
This page seems to be an entry page, because only very few links were found.
There are no external links on this page.

Found links on this page

No internal links were found.

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://app.diagrams.net/"
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 0.26 seconds.
The file size of the HTML document is fine (3 kB).

HTTP Response Header

NameValue
dateWed, 21 May 2025 15:30:15 GMT
content-typetext/html
access-control-allow-origin*
referrer-policystrict-origin
x-content-type-optionsnosniff
x-xss-protection1; mode=block
x-cloud-trace-context9c3afa302f716b3501cce5564be7c1f3
expiresWed, 21 May 2025 15:40:15 GMT
cache-controlpublic, max-age=600
age0
cf-cache-statusDYNAMIC
varyaccept-encoding
set-cookie278 Characters
strict-transport-securitymax-age=31536000; includeSubDomains
content-security-policydefault-src 'self'; script-src https://www.dropbox.com https://api.trello.com 'self' https://viewer.diagrams.net https://apis.google.com https://*.pusher.com 'sha256-f6cHSTUnCvbQqwa6rKcbWIpgN9dLl0ROfpEKTQUQPr8=' 'sha256-vS/MxlVD7nbY7AnV+0t1Ap338uF7vrcs7y23KjERhKc=' ; connect-src https://*.dropboxapi.com https://api.trello.com https://3axinmwptbp2engjl5hovms4ta0lbvit.lambda-url.eu-central-1.on.aws 'self' https://*.draw.io https://*.diagrams.net https://*.googleapis.com wss://app.diagrams.net wss://*.pusher.com https://*.pusher.com https://api.github.com https://raw.githubusercontent.com https://gitlab.com https://graph.microsoft.com https://my.microsoftpersonalcontent.com https://*.sharepoint.com https://*.sharepoint.de https://*.1drv.com https://api.onedrive.com https://dl.dropboxusercontent.com https://api.openai.com https://*.google.com https://fonts.gstatic.com https://fonts.googleapis.com; img-src * data: blob:; media-src * data:; font-src * data: about:; frame-src 'self' https://viewer.diagrams.net https://www.draw.io https://*.google.com; style-src 'self' https://fonts.googleapis.com 'unsafe-inline'; base-uri 'none';child-src 'self';object-src 'none'; frame-ancestors 'self' https://teams.microsoft.com https://*.cloud.microsoft;
permissions-policymicrophone=()
servercloudflare
cf-ray94351d30e94202b7-CDG
content-encodinggzip
statuscode200
http_versionHTTP/2

External factors

This website has excellent links from other websites.
This page has backlinks from 8,363 referring domains.
This page has 237,449 backlinks.
This page has backlinks from 6,247 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

app.diagrams.net
Flowchart Maker & Online Diagram Software
draw.io is free online diagram software for making flowcharts, process diagrams, org charts, UML, ER and network diagrams

Most important keywords

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

KeywordResultRecheck
Diagram85%Check
Diagram Software79%Check
Online Diagram79%Check
Online Diagram Software77%Check
Online73%Check
Flowchart73%Check
Flowchart Maker Online Diagram73%Check
Software72%Check
Maker Online Diagram Software72%Check
Maker Online68%Check
Show more keywords and terms

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