SEO report of periodicsystem.org
Periodic System of The Elements
periodicsystem.org/
Error! The "meta description" is missing, the page has no summary description!
Tasks
- Select one version of your site as main and make a redirect from other versions to that one.
- Avoid using deprecated HTML tags.
- Implement the viewport meta tag.
SEO
URL
Domain : periodicsystem.org/
Character length : 19
Title
Periodic System of The Elements
Keywords (meta keywords)
Good! The website does not use “meta keywords”.
Open Graph Protocol
Good! The OG (Open Graph) protocol is set on this website.
type: website
url: http://periodicsystem.org/
image: http://periodicsystem.org/icon-256x256.png
description: An accessible, extensible, interactive, and free periodic table of chemical elements, including the theoretical and beyond.
title: Periodic System of The Elements
Dublin Core
Dublin Core is not used
Underscores in the URLs
Good! No underscore (_) found in the URLs.
Search engine friendly URLs
Good! The website uses SEO friendly URLs.
Checking the robots.txt file
There is robots.txt file.
https://periodicsystem.org/robots.txt
https://periodicsystem.org/robots.txt
| User-agent | Disallowed for the search engines |
|---|---|
| * |
Social
Social Engagement
No info found.
Content
Doctype
HTML 5
Encoding
Perfect! The character encoding is set: UTF-8.
Language
We have found the language localisation: ”en”.
Title
Periodic System of The Elements
Character length : 31
Good! The title’s length is between 10 and 70 characters.
Character length : 31
Good! The title’s length is between 10 and 70 characters.
Text / HTML ratio
Ratio : 11%
Error! The text / HTML code ratio is under 15 percent on this website. This value shows that the website has relatively few text content.
Error! The text / HTML code ratio is under 15 percent on this website. This value shows that the website has relatively few text content.
Headings
| H1 | H2 | H3 | H4 | H5 | H6 |
|---|---|---|---|---|---|
| 1 | 0 | 0 | 0 | 0 | 0 |
Heading structure in the source code
- <H1> Periodic System of the Elements
Word cloud
- periodic3
- group2
- start2
- end2
- period2
- system2
Keyword matrix
| word | title | descriptions | heading |
|---|---|---|---|
| periodic | |||
| group | |||
| start | |||
| end | |||
| period | |||
| system |
Two Word cloud
- periodic system2
404 Page
The website has a 404 error page.
Flash content
Good! The website does not have any flash contents.
Frame
Good! The website does not use iFrame solutions.
Images
We found 0 images on this web page.
Good! Every image has an alternative text attributes set on this website.
Good! Every image has an alternative text attributes set on this website.
Readability
Flesch–Kincaid Grade Level
12.00
Flesch Reading Ease
0.00
Coleman Liau Index
12.00
Automated Readability Index (ARI)
12.00
Dale–Chall Readability
10.00
SMOG Index
12.00
Spache Readibility
5.00
Number of letters
2182
Number of words
167
Number of sentences
9
Average words per sentences
19
Number of syllables
482
Syllables in words
476
Average syllables in words
2.89
Number of words in first three syllables
96
Percentage of word / syllables
57.49
Words not in Dale-Chall easy-word list
142
Words not in Spache easy-word list
114
Technologies
Deprecated HTML elements
Good! No deprecated HTML tags are detected.
Redirection (www / not www)
Error! The web address is accessible with and without www!
Deprecated HTML elements
Good! No deprecated HTML tags are detected.
Printability
Suggestion! Unfortunately, no printer-friendly CSS found.
Meta Tag (viewport tag, mobile devices)
Error! The meta tag named viewport is missing.
Speed test
Server response time
The server response time is fast enough.
Table layout
Good! No nested tables found.
Render blocking resources
Good! No render blocking elements found!
Speed test – Javascript
Javascript
Good! Just a few javascript files are detected on the website.
File size of all javascript files combined
0.00
Javascript minifying
Great! The Javascript files are minified.
Speed test – CSS
CSS
Good! Just a few CSS files are used on this website.
File size of all css files combined
0.00
CSS minifying
Great! The CSS elements are minified.
Speed test – Compression
Uncompressed size of the of the HTML
0.00
Gzip compression
Your site uses compression.
Speed test – Browser cache
Browser cache
The browser cache is set correctly for all elements.
Speed test – Images
File size of all images combined
0.00
Image optimisation
All images are optimized.
Links
We found a total of 121 different links.
Internal links: 120
External links: 1
Internal links: 120
External links: 1
External links:
| Link text (anchor) | Link strength |
|---|---|
| deIdee |
Internal links:
| Link text (anchor) | Link strength |
|---|---|
| n | |
| H | |
| He | |
| Li | |
| Be | |
| B | |
| C | |
| N | |
| O | |
| F | |
| Ne | |
| Na | |
| Mg | |
| Al | |
| Si | |
| P | |
| S | |
| Cl | |
| Ar | |
| K | |
| Ca | |
| Sc | |
| Ti | |
| V | |
| Cr | |
| Mn | |
| Fe | |
| Co | |
| Ni | |
| Cu | |
| Zn | |
| Ga | |
| Ge | |
| As | |
| Se | |
| Br | |
| Kr | |
| Rb | |
| Sr | |
| Y | |
| Zr | |
| Nb | |
| Mo | |
| Tc | |
| Ru | |
| Rh | |
| Pd | |
| Ag | |
| Cd | |
| In | |
| Sn | |
| Sb | |
| Te | |
| I | |
| Xe | |
| Cs | |
| Ba | |
| La | |
| Ce | |
| Pr | |
| Nd | |
| Pm | |
| Sm | |
| Eu | |
| Gd | |
| Tb | |
| Dy | |
| Ho | |
| Er | |
| Tm | |
| Yb | |
| Lu | |
| Hf | |
| Ta | |
| W | |
| Re | |
| Os | |
| Ir | |
| Pt | |
| Au | |
| Hg | |
| Tl | |
| Pb | |
| Bi | |
| Po | |
| At | |
| Rn | |
| Fr | |
| Ra | |
| Ac | |
| Th | |
| Pa | |
| U | |
| Np | |
| Pu | |
| Am | |
| Cm | |
| Bk | |
| Cf | |
| Es | |
| Fm | |
| Md | |
| No | |
| Lr | |
| Rf | |
| Db | |
| Sg | |
| Bh | |
| Hs | |
| Mt | |
| Ds | |
| Rg | |
| Cn | |
| Uut | |
| Fl | |
| Uup | |
| Lv | |
| Uus | |
| Uuo | |
| Periodic System |
Website security
IP
64.90.48.42
External hidden links
Good! No hidden external links found
Looking for eval()
Good! No eval(bas64_decode()) scripts are found
Checking for XSS vulnerability
No XSS vulnerability found
Email encryption
Good! We have not found any unencrypted email addresses.
Sites on same ip
Icons
Favicon
Error! No favicon is found. Using favicon helps to build a better brand quicker.
Typos
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