Floating-point-gui.de - SEO Checker

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Overview of the SEO Check
Meta information
61% 
Page quality
32% 
Page structure
70% 
Link structure
98% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.17 s
File size
3.80 kB
Words
158
Media files
3
Number of links
22 internal / 4 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
The Floating-Point Guide - What Every Programmer Should Know About Floating-Point Arithmetic
The page title should be shorter than 580 pixels. It is 872 pixels long. Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
Aims to provide both short and simple answers to the common recurring questions of novice programmers about floating-point numbers not 'adding up' correctly, and more in-depth information about how IEEE 754 floats work, when and how to use them correctly, and what to use instead when they are not appropriate.
The meta description is too long: 1955 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)
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 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
google-site-verificationSoYmbsJEmSz2s1LmZk_cku4pKwhRsU6m0ZOTgGdnTL0
generatornanoc 3.1.2
DescriptionAims to provide both short and simple answers to the common recurring questions of novice programmers about floating-point numbers not 'adding up' correctly, and more in-depth information about how IEEE 754 floats work, when and how to use them correctly, and what to use instead when they are not appropriate.
langen
charsetutf-8

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Page quality

Content
(Critically important)
There are only 158 words on this page. Use at least 250 words to provide useful information.
Words from the H1 heading are not used in the page content.
Only 2 paragraph/s was/were found on this page.
The average number of words per sentence of 50 words is high.
39.2% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
The page contains a listing, which indicates a good text layout.
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)
No viewpoint tag is provided.
No Apple touch icon is specified.
This page does not require any JavaScript files.
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
https://floating-point-gui.de/logo.pngNo alt attribute provided
https://floating-point-gui.de/es.pngNo alt attribute provideden Español
/forkme_right_white_ffffff.pngFork me on GitHub

Page structure

H1 heading
(Critically important)
What Every Programmer Should Know About Floating-Point Arithmetic
Too many H1 headings
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 What Every Programmer Should Know About Floating-Point Arithmetic
H1 Why don’t my numbers add up?
H2 or
H2 The Floating-Point Guide
H2 Number Formats
H2 Errors
H2 Language cheat sheets
Some anchor texts are used more than once.
The number of internal links is ok.
None of the anchor texts is too long.
All internal links are not using dynamic parameters.
There are 4 external links on this page.

Found links on this page

LinkAttributesAnchor text
http://download.oracle.com/doc...External Subdomain long article with lots of formulas
/basic/Basic Answers
https://floating-point-gui.de/floating-point-gui.de
http://creativecommons.org/lic...External Creative Commons Attribution License (BY)
http://puntoflotante.org/External No Text
https://floating-point-gui.de/Home
/basic/Text duplicate Basic Answers
/references/References
/xkcd/xkcd
/formats/binary/Binary Fractions
/formats/fp/Floating-Point
/formats/exact/Exact Types
/formats/integer/On Using Integers
/errors/rounding/Rounding
/errors/comparison/Comparison
/errors/propagation/Propagation
/languages/csharp/C#
/languages/java/Java
/languages/javascript/JavaScript
/languages/perl/Perl
/languages/php/PHP
/languages/python/Python
/languages/ruby/Ruby
/languages/rust/Rust
/languages/sql/SQL
http://github.com/brazzy/float...External IMG-ALT Fork me on GitHub

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://floating-point-gui.de/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
This page uses GZip for compressed data transmission.
Performance
(Somewhat important)
The page response time is excellent with 0.17 seconds.
This page only loads 1 CSS files. That's ok.
This page does not require any JavaScript files.
The file size of the HTML document is fine (4 kB).

HTTP Response Header

NameValue
alt-svch3=":443"; ma=2592000
content-encodinggzip
content-security-policydefault-src 'self'; img-src 'self' data: imgs.xkcd.com; style-src 'self' 'unsafe-inline'; report-uri https://brazzy.de/csp.php; report-to csp-endpoint
content-typetext/html; charset=utf-8
etag"qt9oqq2yu"
last-modifiedMon, 17 May 2021 19:56:50 GMT
referrer-policystrict-origin
report-to{ "group": "csp-endpoint","max_age": 10886400,"endpoints": [{"url":"https://brazzy.de/csp.php" }]}
serverCaddy
strict-transport-securitymax-age=31536000; includeSubDomains
varyAccept-Encoding
x-content-type-optionsnosniff
x-download-optionsnoopen
x-frame-optionsSAMEORIGIN
x-permitted-cross-domain-policiesnone
x-xss-protection1; mode=block
content-length1662
dateSun, 02 Jun 2024 23:44:05 GMT
statuscode200
http_versionHTTP/2

External factors

Blacklists
(Nice to have)
This website is not classified "for adult only".
This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 1,001 referring domains.
This page has 7,525 backlinks.
This page has backlinks from 706 different ip addresses.
Facebook popularity
(Somewhat important)
The page has 0 shares and comments on Facebook.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

# Zugriff auf alle Dateien erlauben
# Allow access to everything
User-agent: *
Disallow:

Similar sites

Search preview

floating-point-gui.de
The Floating-Point Guide - What Every Programmer Should Know About ...
Aims to provide both short and simple answers to the common recurring questions of novice programmers about floating-point numbers not 'adding up' correctly, and more in-depth information about how IEEE 754 floats work, when and how to use them correctly, and what to use instead when they are not appropriate.

Most important keywords

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

KeywordResultRecheck
Floating-Point89%Check
Floating-Point Arithmetic77%Check
Programmer72%Check
Floating-Point Guide71%Check
floating-point numbers71%Check
Know61%Check
Arithmetic61%Check
numbers50%Check
Guide50%Check
add50%Check
Show more keywords and terms

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