Website review trueb.swiss
Generated on December 07 2025 20:09 PM
Old data? UPDATE !
The score is 53/100
SEO Content
Title
Astronomy Picture of the Day
Length : 28
Perfect, your title contains between 10 and 70 characters.
Description
A different astronomy and space science related image is featured each day, along with a brief explanation.
Length : 107
Great, your meta description contains between 70 and 160 characters.
Keywords
Sun, absorption spectra, colors
Good, your page contains meta keywords.
Og Meta Properties
This page does not take advantage of Og Properties. This tags allows social crawler's better structurize your page. Use this free og properties generator to create them.
Headings
| H1 | H2 | H3 | H4 | H5 | H6 |
| 1 | 0 | 0 | 0 | 0 | 0 |
- [H1] Astronomy Picture of the Day
Images
We found 1 images on this web page.
Good, most or all of your images have alt attributes.
Text/HTML Ratio
Ratio : 32%
Ideal! This page's ratio of text to HTML code is between 25 and 70 percent.
Flash
Perfect, no Flash content has been detected on this page.
Iframe
Great, there are no Iframes detected on this page.
SEO Links
URL Rewrite
Good. Your links looks friendly!
Underscores in the URLs
We have detected underscores in your URLs. You should rather use hyphens to optimize your SEO.
In-page links
We found a total of 48 links including 2 link(s) to files
| Anchor | Type | Juice |
|---|---|---|
| Discover the cosmos! | Internal | Passing Juice |
| NSF | External | Passing Juice |
| FTS | External | Passing Juice |
| NSO | External | Passing Juice |
| KPNO | External | Passing Juice |
| AURA | External | Passing Juice |
| not known | External | Passing Juice |
| visible | External | Passing Juice |
| Sun | External | Passing Juice |
| prism | External | Passing Juice |
| The spectrum | External | Passing Juice |
| McMath-Pierce | External | Passing Juice |
| Solar Observatory | Internal | Passing Juice |
| white | External | Passing Juice |
| Sun | Internal | Passing Juice |
| every color | External | Passing Juice |
| Sun's surface | Internal | Passing Juice |
| absorb different colors of light | External | Passing Juice |
| Helium | External | Passing Juice |
| first discovered | External | Passing Juice |
| 1868 | External | Passing Juice |
| later found | External | Passing Juice |
| Earth | External | Passing Juice |
| spectral absorption lines | External | Passing Juice |
| not all | External | Passing Juice |
| Wednesday, December 10 at 7 pm | External | Passing Juice |
| < | Internal | Passing Juice |
| Submissions | Internal | Passing Juice |
| Index | Internal | Passing Juice |
| Search | External | Passing Juice |
| Calendar | Internal | Passing Juice |
| RSS | External | Passing Juice |
| Education | Internal | Passing Juice |
| About APOD | Internal | Passing Juice |
| > | Internal | Passing Juice |
| Robert Nemiroff | External | Passing Juice |
| MTU | External | Passing Juice |
| Jerry Bonnell | External | Passing Juice |
| UMCP | External | Passing Juice |
| Specific rights apply | Internal | Passing Juice |
| NASA Web Privacy | External | Passing Juice |
| Accessibility | External | Passing Juice |
| Notices | External | Passing Juice |
| ASD | External | Passing Juice |
| NASA | External | Passing Juice |
| GSFC | External | Passing Juice |
| NASA Science Activation | External | Passing Juice |
| Michigan Tech. U. | External | Passing Juice |
SEO Keywords
Keywords Cloud
day sun nasa different suns astronomy spectrum light picture colors
Keywords Consistency
| Keyword | Content | Title | Keywords | Description | Headings |
|---|---|---|---|---|---|
| light | 5 |  |
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| sun | 4 | |
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| nasa | 4 | |
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| colors | 4 | |
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| day | 3 | |
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Usability
Url
Domain : trueb.swiss
Length : 11
Favicon
Great, your website has a favicon.
Printability
We could not find a Print-Friendly CSS.
Language
You have not specified the language. Use this free meta tags generator to declare the intended language of your website.
Dublin Core
This page does not take advantage of Dublin Core.
Document
Doctype
HTML 5
Encoding
You have not specified the document's charset. Use this free meta tags generator to declare document's charset.
W3C Validity
Errors : 0
Warnings : 0
Email Privacy
Great no email address has been found in plain text!
Deprecated HTML
| Deprecated tags | Occurrences |
|---|---|
| <center> | 3 |
Deprecated HTML tags are HTML tags that are no longer used. It is recommended that you remove or replace these HTML tags because they are now obsolete.
Speed Tips
|
Excellent, your website doesn't use nested tables. |
|
Too bad, your website is using inline styles. |
|
Great, your website has few CSS files. |
|
Perfect, your website has few JavaScript files. |
|
Too bad, your website does not take advantage of gzip. |
Mobile
Mobile Optimization
|
Apple Icon |
|
Meta Viewport Tag |
|
Flash content |
Optimization
XML Sitemap
Great, your website has an XML sitemap.
| https://apod.nasa.gov/apod/astropix.html |
Robots.txt
http://trueb.swiss/robots.txt
Great, your website has a robots.txt file.
Analytics
Missing
We didn't detect an analytics tool installed on this website.
Web analytics let you measure visitor activity on your website. You should have at least one analytics tool installed, but It can also be good to install a second in order to cross-check the data.
PageSpeed Insights
Device
Categories
Website-SEO-Überprüfung
Website-SEO-Überprüfung is a free SEO tool which provides you content analysis of the website.