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Web Frameworks

61 vanderbilt.edu Last Updated: 3 months

Success 47 % of passed verification steps
Warning 30 % of total warning
Errors 23 % of total errors, require fast action

Desktop

Mobile

Performance Desktop Score 70 %
Best Practices Desktop Score 69 %
SEO Desktop Score 90 %
Progressive Web App Desktop Score 26 %
Performance Mobile Score 36 %
Best Practices Mobile Score 69 %
SEO Mobile Score 88 %
Progressive Web App Mobile Score 25 %
Page Authority Authority 61 %
Domain Authority Domain Authority 84 %
Moz Rank 6.1 /10
Bounce Rate Rate 0 %
Charset Encoding
Great, language/character encoding is specified: UTF-8
Title Tag 33Characters
VANDERBILT UNIVERSITY
Meta Description 159Characters
Vanderbilt University, located in Nashville, Tenn., is a private research university offering a full range of undergraduate, graduate and professional degrees.
Effective URL 30Characters
https://www.vanderbilt.edu:443
Excerpt Page content
Vanderbilt University Skip to main content Health ...
Keywords Cloud Density
vanderbilt47 covid14 research13 students12 university11 more10 alumni10 faculty10 school9 colleges9
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
vanderbilt 47
covid 14
research 13
students 12
university 11
more 10
alumni 10
faculty 10
school 9
colleges 9
Google Preview Your look like this in google search result
VANDERBILT UNIVERSITY
https://www.vanderbilt.edu:443
Vanderbilt University, located in Nashville, Tenn., is a private research university offering a full range of undergraduate, graduate and professional
Robots.txt File No Found
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: 1969-12-31 / 51 years
Create on: 1969-12-31 / 51 years
Expires on: 1969-12-31 / 618 months 17 days
Page Size Code & Text Ratio
Document Size: ~62.28 KB
Code Size: ~46.38 KB
Text Size: ~15.91 KB Ratio: 25.54 %

Estimation Traffic and Earnings

14,505
Unique Visits
Daily
26,834
Pages Views
Daily
$17
Income
Daily
406,140
Unique Visits
Monthly
764,769
Pages Views
Monthly
$425
Income
Monthly
4,699,620
Unique Visits
Yearly
9,016,224
Pages Views
Yearly
$4,488
Income
Yearly

Technologies

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PWA - Manifest

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

Desktop

Desktop Screenshot
Total Blocking Time 160 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
Minify CSS Potential savings of 19 KiB
Minifying CSS files can reduce network payload sizes
Avoid chaining critical requests 19 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
Estimated Input Latency 20 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
Initial server response time was short Root document took 200 ms
Keep the server response time for the main document short because all other requests depend on it
Largest Contentful Paint 3.4 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Page load is not fast enough on mobile networks Interactive on simulated mobile network at 16.2 s
A fast page load over a cellular network ensures a good mobile user experience
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
Links do not have descriptive text 8 links found
Descriptive link text helps search engines understand your content
First Meaningful Paint 0.9 s
First Meaningful Paint measures when the primary content of a page is visible
Time to Interactive 3.5 s
Time to interactive is the amount of time it takes for the page to become fully interactive
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
JavaScript execution time 0.9 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Enable text compression Potential savings of 163 KiB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes
Serve static assets with an efficient cache policy 39 resources found
A long cache lifetime can speed up repeat visits to your page
Minimizes main-thread work 1.5 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
Keep request counts low and transfer sizes small 96 requests • 19,700 KiB
To set budgets for the quantity and size of page resources, add a budget.json file
Avoid enormous network payloads Total size was 5,900 KiB
Large network payloads cost users real money and are highly correlated with long load times
User Timing marks and measures 3 user timings
Consider instrumenting your app with the User Timing API to measure your app's real-world performance during key user experiences
First CPU Idle 2.5 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/).
Efficiently encode images Potential savings of 1,568 KiB
Optimized images load faster and consume less cellular data
Remove unused CSS Potential savings of 176 KiB
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
Speed Index 1.6 s
Speed Index shows how quickly the contents of a page are visibly populated
Cumulative Layout Shift 0.119
Cumulative Layout Shift measures the movement of visible elements within the viewport
Reduce the impact of third-party code Third-party code blocked the main thread for 580 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
Remove unused JavaScript Potential savings of 406 KiB
Remove unused JavaScript to reduce bytes consumed by network activity
Avoid an excessive DOM size 1,061 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)
First Contentful Paint 0.9 s
First Contentful Paint marks the time at which the first text or image is painted
Preload key requests Potential savings of 380 ms
Consider using `<link rel=preload>` to prioritize fetching resources that are currently requested later in page load
Eliminate render-blocking resources Potential savings of 130 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Includes front-end JavaScript libraries with known security vulnerabilities 9 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Largest Contentful Paint element 1 element found
This is the largest contentful element painted within the viewport
Avoid long main-thread tasks 2 long tasks found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay
Serve images in next-gen formats Potential savings of 2,853 KiB
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
Properly size images Potential savings of 3 KiB
Serve images that are appropriately-sized to save cellular data and improve load time
Avoid large layout shifts 5 elements found
These DOM elements contribute most to the CLS of the page.
Max Potential First Input Delay 350 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Defer offscreen images Potential savings of 1,120 KiB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive

Mobile

Mobile Screenshot
Reduce the impact of third-party code Third-party code blocked the main thread for 1,020 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
Remove unused CSS Potential savings of 182 KiB
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
Max Potential First Input Delay 460 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Links do not have descriptive text 8 links found
Descriptive link text helps search engines understand your content
First Meaningful Paint 3.3 s
First Meaningful Paint measures when the primary content of a page is visible
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
Avoid chaining critical requests 17 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
Enable text compression Potential savings of 163 KiB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes
Efficiently encode images Potential savings of 1,568 KiB
Optimized images load faster and consume less cellular data
Time to Interactive 14.4 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
Serve images in next-gen formats Potential savings of 2,853 KiB
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
Remove unused JavaScript Potential savings of 406 KiB
Remove unused JavaScript to reduce bytes consumed by network activity
First Contentful Paint 3.3 s
First Contentful Paint marks the time at which the first text or image is painted
Estimated Input Latency 130 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
First CPU Idle 10.3 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/).
Minify CSS Potential savings of 19 KiB
Minifying CSS files can reduce network payload sizes
Page load is not fast enough on mobile networks Interactive at 14.4 s
A fast page load over a cellular network ensures a good mobile user experience
Avoid long main-thread tasks 13 long tasks found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay
Keep request counts low and transfer sizes small 94 requests • 19,740 KiB
To set budgets for the quantity and size of page resources, add a budget.json file
Includes front-end JavaScript libraries with known security vulnerabilities 9 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Reduce JavaScript execution time 1.8 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Speed Index 6.5 s
Speed Index shows how quickly the contents of a page are visibly populated
Serve static assets with an efficient cache policy 39 resources found
A long cache lifetime can speed up repeat visits to your page
Tap targets are not sized appropriately 63% 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
Initial server response time was short Root document took 90 ms
Keep the server response time for the main document short because all other requests depend on it
Total Blocking Time 570 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
User Timing marks and measures 3 user timings
Consider instrumenting your app with the User Timing API to measure your app's real-world performance during key user experiences
Eliminate render-blocking resources Potential savings of 390 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Largest Contentful Paint 16.8 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Preload key requests Potential savings of 960 ms
Consider using `<link rel=preload>` to prioritize fetching resources that are currently requested later in page load
Largest Contentful Paint element 1 element found
This is the largest contentful element painted within the viewport
Avoid an excessive DOM size 1,061 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)
Document uses legible font sizes 70.19% 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
Defer offscreen images Potential savings of 1,170 KiB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive
Avoid enormous network payloads Total size was 5,941 KiB
Large network payloads cost users real money and are highly correlated with long load times
First Contentful Paint (3G) 6750 ms
First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network
Minimize main-thread work 3.5 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this

Speed And Optimization Tips

Website speed has a huge impact on performance, affecting user experience, conversion rates and even rankings. ‪‬‬By reducing page load-times, users are less likely to get distracted and the search engines are more likely to reward you by ranking you
Title Website
Congratulations! Your title is optimized
Description Website
Warning! Your description is not optimized
Robots.txt
Warning! Your site not have a robots.txt file
Sitemap.xml
Warning! Not found a sitemap file for your website
SSL Secure
Congratulations! Your site have Support to HTTPS
Headings
Congratulations! You are using your H1 and H2 tags in your site
Blacklist
Congratulations! Your site is not listed in a blacklist
W3C Validator
Warning! Your site have errors W3C
Accelerated Mobile Pages (AMP)
Warning! Your site not have AMP Version
Domain Authority
Congratulations! Your Domain Authority is good
GZIP Compress
Warning! Your site not is compressed, this can make slower response for the visitors
Favicon
Warning! Your site not have a favicon
Broken Links
Congratulations! You not have broken links View links

Alexa Rank

11,406

Global Rank

3,755

United States
Traffic
Search

Information Server

Response Header HTTP headers carry information about the client browser, the requested page and the server
HTTP/1.1 200 OK
Date: Sat, 01 Aug 2020 06:00:47 GMT
Content-Type: text/html; charset=utf-8
Connection: keep-alive
Server: Apache/2.4.41 (Amazon) OpenSSL/1.0.2k-fips PHP/5.6.40
X-Powered-By: PHP/5.6.40
Set-Cookie: AWSALB=92Sqh8EyjVsv06o5l8+udk5RN9vHtQQBo8BdTVKFKyEd3BNP9P9Bgpa2ansGL9b254h/67JSs67LGcb054MyZyjaF2LU8hCQMzQcIhVv7IwXn6ZahAVRpTgwuMGB; Expires=Sat, 08 Aug 2020 06:00:47 GMT; Path=/
Set-Cookie: AWSALBCORS=92Sqh8EyjVsv06o5l8+udk5RN9vHtQQBo8BdTVKFKyEd3BNP9P9Bgpa2ansGL9b254h/67JSs67LGcb054MyZyjaF2LU8hCQMzQcIhVv7IwXn6ZahAVRpTgwuMGB; Expires=Sat, 08 Aug 2020 06:00:47 GMT; Path=/; SameSite=None; Secure
DNS Records DNS Resource Records associated with a hostname
View DNS Records

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