Website review sgp.io
SGP • Student Growth Percentiles & Percentile Growth Trajectories
Generated on February 26 2026 00:19 AM
Old data? UPDATE !
The score is 42/100
SEO Content
Title
SGP • Student Growth Percentiles & Percentile Growth Trajectories
Length : 65
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Description
Length : 0
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Keywords
student-growth-percentiles, r, student-growth-projections, sgp, sgp-analyses, percentile-growth-projections, quantile-regression, cran
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Og Meta Properties
Good, your page take advantage of Og Properties.
| Property | Content |
|---|---|
| title | SGP • Student Growth Percentiles & Percentile Growth Trajectories |
| description | An analytic framework for the calculation of norm- and criterion-referenced academic growth estimates using large scale, longitudinal education assessment data as developed in Betebenner (2009) <doi:10.1111/j.1745-3992.2009.00161.x>. |
| type | website |
| site_name | SGP • Student Growth Percentiles & Percentile Growth Trajectories |
| url | https://centerforassessment.github.io/SGP |
| image | https://centerforassessment.github.io/SGP/img/REPO_CARD_image.png |
Headings
| H1 | H2 | H3 | H4 | H5 | H6 |
| 5 | 6 | 0 | 0 | 0 | 0 |
- [H1] Overview
- [H1] Installation
- [H1] Resources
- [H1] Contributors
- [H1] References
- [H2] From CRAN
- [H2] From Github
- [H2] Developers
- [H2] License
- [H2] Links
- [H2] Dev status
Images
We found 16 images on this web page.
8 alt attributes are empty or missing. Add alternative text so that search engines can better understand the content of your images.
Text/HTML Ratio
Ratio : 0%
This page's ratio of text to HTML code is below 15 percent, this means that your website probably needs more text content.
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
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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 40 links including 1 link(s) to files
| Anchor | Type | Juice |
|---|---|---|
| - | External | Passing Juice |
| SGP | Internal | Passing Juice |
| Getting Started | Internal | Passing Juice |
| SGP Data Preparation | Internal | Passing Juice |
| SGP Data Analysis | Internal | Passing Juice |
| Reference | Internal | Passing Juice |
| SGP 2.1-0.0 | Internal | Passing Juice |
| SGP 2.0-0.0 | Internal | Passing Juice |
| SGP 1.9-5.0 | Internal | Passing Juice |
| SGP 1.9-0.0 | Internal | Passing Juice |
| SGP 1.8-0.0 | Internal | Passing Juice |
| SGP 1.7-0.0 | Internal | Passing Juice |
| SGP 1.6-0.0 | Internal | Passing Juice |
| SGP 1.5-0.0 | Internal | Passing Juice |
| SGP 1.4-0.0 | Internal | Passing Juice |
| Change log | Internal | Passing Juice |
| - | Internal | Passing Juice |
| - | Internal | Passing Juice |
| - | Internal | Passing Juice |
| CRAN | External | Passing Juice |
| - | Internal | Passing Juice |
| - | Internal | Passing Juice |
| Github | External | Passing Juice |
| - | Internal | Passing Juice |
| - | Internal | Passing Juice |
| SGP GitHub Pages | Internal | Passing Juice |
| Norm- and Criterion-Referenced Student Growth | External | Passing Juice |
| - | Internal | Passing Juice |
| Damian Betebenner | External | Passing Juice |
| Adam R. Van Iwaarden | External | Passing Juice |
| Ben Domingue | External | Passing Juice |
| Yi Shang | External | Passing Juice |
| - | Internal | Passing Juice |
| https://www.R-project.org/ | External | Passing Juice |
| All authors... | Internal | Passing Juice |
| GPL-3 | External | Passing Juice |
| SGP on CRAN | External | Passing Juice |
| View source code | External | Passing Juice |
| Report an issue | External | Passing Juice |
| Other Center stuff | External | Passing Juice |
SEO Keywords
Keywords Cloud
Keywords Consistency
| Keyword | Content | Title | Keywords | Description | Headings |
|---|
Usability
Url
Domain : sgp.io
Length : 6
Favicon
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Printability
We could not find a Print-Friendly CSS.
Language
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Dublin Core
This page does not take advantage of Dublin Core.
Document
Doctype
HTML 5
Encoding
Perfect. Your declared charset is UTF-8.
W3C Validity
Errors : 0
Warnings : 0
Email Privacy
Great no email address has been found in plain text!
Deprecated HTML
Great! We haven't found deprecated HTML tags in your HTML.
Speed Tips
 |
Excellent, your website doesn't use nested tables. |
 |
Too bad, your website is using inline styles. |
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Great, your website has few CSS files. |
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Too bad, your website has too many JS files (more than 6). |
|
Perfect, your website takes advantage of gzip. |
Mobile
Mobile Optimization
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Apple Icon |
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Meta Viewport Tag |
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Flash content |
Optimization
XML Sitemap
Missing
Your website does not have an XML sitemap - this can be problematic.
A sitemap lists URLs that are available for crawling and can include additional information like your site's latest updates, frequency of changes and importance of the URLs. This allows search engines to crawl the site more intelligently.
Robots.txt
https://sgp.io/robots.txt
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Analytics
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Google Analytics |
PageSpeed Insights
Device
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