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Top Technologies

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Web Frameworks

68 rug.nl Last Updated: 8 months

Success 62% of passed verification steps
Warning 23% of total warning
Errors 15% of total errors, require fast action

Desktop

Mobile

Performance Desktop Score 63%
Best Practices Desktop Score 85%
SEO Desktop Score 100%
Progressive Web App Desktop Score 58%
Performance Mobile Score 24%
Best Practices Mobile Score 85%
SEO Mobile Score 97%
Progressive Web App Mobile Score 59%
Page Authority Authority 55%
Domain Authority Domain Authority 74%
Moz Rank 5.5/10
Bounce Rate Rate 0%
Charset Encoding
Great, language/character encoding is specified: UTF-8
Title Tag 44 Characters
TOP 100 UNIVERSITY | UNIVERSITY OF GRONINGEN
Meta Description 208 Characters
The University of Groningen has a high re---tion for academic teaching and research and a large international network and offers degree programmes at Bachelor, Master and PhD levels in virtually every field.
Effective URL 18 Characters
https://www.rug.nl
Excerpt Page content
Top 100 University | University of Groningen Javascript must be enabled for the correct page display Skip to ContentSkip to Navigation University of Groningenfounded in 1614  -  top 100 universit...
Keywords Cloud Density
university13 research13 alumni10 faculty9 business8 about8 society6 programmes6 education6 magazine5
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
university 13
research 13
alumni 10
faculty 9
business 8
about 8
society 6
programmes 6
education 6
magazine 5
Google Preview Your look like this in google search result
TOP 100 UNIVERSITY | UNIVERSITY OF GRONINGEN
https://www.rug.nl
The University of Groningen has a high re---tion for academic teaching and research and a large international network and offers degree programmes at
Robots.txt File Detected
Sitemap.xml File No Found
Whois Is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system
Updated: 1970-01-01 / 51 years
Create on: 1970-01-01 / 51 years
Expires on: 1970-01-01 / 617 months 15 days
Page Size Code & Text Ratio
Document Size: ~40.65 KB
Code Size: ~35.76 KB
Text Size: ~4.89 KB Ratio: 12.04%

Estimation Traffic and Earnings

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Technologies

PWA - Manifest

Manifest is not valid
Your site don't have valid manifest.json, read more in Web App Manifest

Desktop

Desktop Screenshot
Avoids an excessive DOM size 496 elements
A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow)
Minify JavaScript Potential savings of 118 KB
Minifying JavaScript files can reduce payload sizes and script parse time
First Meaningful Paint 2.1 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 43 requests • 4,845 KB
To set budgets for the quantity and size of page resources, add a budget.json file
Uses efficient cache policy on static assets 1 resource found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 20 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 2.1 s
Time to interactive is the amount of time it takes for the page to become fully interactive
Network Round Trip Times 0 ms
Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance
Estimated Input Latency 10 ms
Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy
Remove unused CSS Potential savings of 150 KB
Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity
Serve images in next-gen formats Potential savings of 1,276 KB
Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption
Reduce server response times (TTFB) Root document took 740 ms
Time To First Byte identifies the time at which your server sends a response
Eliminate render-blocking resources Potential savings of 2,040 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Enable text compression Potential savings of 695 KB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes
Efficiently encode images Potential savings of 653 KB
Optimized images load faster and consume less cellular data
Minimize third-party usage Third-party code blocked the main thread for 0 ms
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading
Total Blocking Time 0 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
JavaScript execution time 0.0 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Server Backend Latencies 0 ms
Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance
Properly size images Potential savings of 3,077 KB
Serve images that are appropriately-sized to save cellular data and improve load time
Speed Index 2.6 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 2.1 s
First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. [Learn more](https://web.dev/first-cpu-idle).
Avoid enormous network payloads Total size was 4,845 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimizes main-thread work 0.3 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 1.9 s
First Contentful Paint marks the time at which the first text or image is painted
Includes front-end JavaScript libraries with known security vulnerabilities 2 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Avoid chaining critical requests 25 chains found
The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load

Mobile

Mobile Screenshot
Total Blocking Time 30 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
JavaScript execution time 0.3 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Server Backend Latencies 0 ms
Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance
Properly size images Potential savings of 2,539 KB
Serve images that are appropriately-sized to save cellular data and improve load time
Speed Index 8.4 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 8.2 s
First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. [Learn more](https://web.dev/first-cpu-idle).
Avoid enormous network payloads Total size was 4,814 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimizes main-thread work 1.1 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 7.7 s
First Contentful Paint marks the time at which the first text or image is painted
Includes front-end JavaScript libraries with known security vulnerabilities 2 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Avoid chaining critical requests 25 chains found
The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load
Avoids an excessive DOM size 496 elements
A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow)
Minify JavaScript Potential savings of 118 KB
Minifying JavaScript files can reduce payload sizes and script parse time
First Meaningful Paint 8.2 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 42 requests • 4,814 KB
To set budgets for the quantity and size of page resources, add a budget.json file
Uses efficient cache policy on static assets 1 resource found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 100 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 8.3 s
Time to interactive is the amount of time it takes for the page to become fully interactive
Network Round Trip Times 0 ms
Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance
First Contentful Paint (3G) 16208 ms
First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network
Estimated Input Latency 10 ms
Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy
Tap targets are not sized appropriately 74% appropriately sized tap targets
Interactive elements like buttons and links should be large enough (48x48px), and have enough space around them, to be easy enough to tap without overlapping onto other elements
Document uses legible font sizes 100% legible text
Font sizes less than 12px are too small to be legible and require mobile visitors to “pinch to zoom” in order to read. Strive to have >60% of page text ≥12px
Remove unused CSS Potential savings of 154 KB
Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity
Serve images in next-gen formats Potential savings of 1,255 KB
Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption
Reduce server response times (TTFB) Root document took 770 ms
Time To First Byte identifies the time at which your server sends a response
Eliminate render-blocking resources Potential savings of 7,440 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Enable text compression Potential savings of 695 KB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes
Efficiently encode images Potential savings of 653 KB
Optimized images load faster and consume less cellular data
Minimize third-party usage Third-party code blocked the main thread for 0 ms
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading

Speed And Optimization Tips

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Alexa Rank

0

Local Rank: / Users: / PageViews:

Global Rank

Information Server

Response Header HTTP headers carry information about the client browser, the requested page and the server
HTTP/1.1 200 
X-XSS-Protection: 1; mode=block
X-NodeId: cms-fp24-pub
X-UA-Compatible: IE=edge
Access-Control-Allow-Origin: *
X-RequestID: 17184067
Cache-Control: max-age=0, must-revalidate, proxy-revalidate
Set-Cookie: JSESSIONID=BB9BF72C64EB8CCE6BAED42EDF68BBA3; Path=/; HttpOnly
ETag: CMS/675|683|684|2840|106577940|106580653|106582353|106582354|108402690|108402714|[email protected]/
X-ETag: 675|683|684|2840|106577940|106580653|106582353|106582354|108402690|108402714|[email protected]
Last-Modified: Mon, 27 Jan 2020 08:45:08 GMT
Content-Type: text/html;charset=UTF-8
Content-Length: 0
Date: Mon, 27 Jan 2020 08:45:07 GMT
Set-Cookie: BIGipServerucms_pool_prod_9084=572593580.31779.0000; path=/; Httponly; Secure
Strict-Transport-Security: max-age=15638400
DNS Records DNS Resource Records associated with a hostname
View DNS Records

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