Mobile Friendliness 60/100
Configures the viewport
Content is sized correctly for the viewport
Size tap targets appropriately
URL |
---|
The tap target <a href="/" class="footer-cell__link">GPA Calculator</a> and 13 others are close to other tap targets. |
... |
Uses legible font sizes
Color Contrast is satisfactory
Impact | Snippet | Target | Failure Summary |
---|---|---|---|
serious | <button class="page-group__button-create js-item-action" data-type="course" data-action="create"> | #js-semesters > li > button.page-group__button-create | Fix any of the following: Element has insufficient color contrast of 3.36 (foreground color: #1690ed, background color: #ffffff, font size: 12.0pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <button class="page-calculator__button-create js-item-action" data-type="semester" data-action="create"> | .page-calculator.js-calculator > button.page-calculator__button-create.js-item-action | Fix any of the following: Element has insufficient color contrast of 3.36 (foreground color: #1690ed, background color: #ffffff, font size: 12.0pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <a href="/gpa-scale/" title="GPA Scale"> | html > body > main > section:nth-child(3) > article > p:nth-child(3) > a[href$="gpa-scale/"] | Fix any of the following: Element has insufficient color contrast of 3.36 (foreground color: #1690ed, background color: #ffffff, font size: 12.0pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <a href="/gpa-scale/4.0/" title="4.0 GPA"> | p:nth-child(21) > a | Fix any of the following: Element has insufficient color contrast of 3.36 (foreground color: #1690ed, background color: #ffffff, font size: 12.0pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <a href="/gpa-scale/a-/" title="A- GPA"> | p:nth-child(28) > a[href$="a-/"] | Fix any of the following: Element has insufficient color contrast of 3.36 (foreground color: #1690ed, background color: #ffffff, font size: 12.0pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <a href="/high-school-gpa-calculator/" title="High School GPA Calculator"> | p:nth-child(29) > a | Fix any of the following: Element has insufficient color contrast of 3.36 (foreground color: #1690ed, background color: #ffffff, font size: 12.0pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <a href="/grade-calculator/" title="Grade Calculator"> | p:nth-child(39) > a[href$="grade-calculator/"] | Fix any of the following: Element has insufficient color contrast of 3.36 (foreground color: #1690ed, background color: #ffffff, font size: 12.0pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <a href="/cumulative-gpa-calculator/" title="Cumulative GPA Calculator"> | p:nth-child(50) > a | Fix any of the following: Element has insufficient color contrast of 3.36 (foreground color: #1690ed, background color: #ffffff, font size: 12.0pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <a href="/college-gpa-calculator/" title="College GPA Calculator"> | p:nth-child(56) > a[href$="college-gpa-calculator/"] | Fix any of the following: Element has insufficient color contrast of 3.36 (foreground color: #1690ed, background color: #ffffff, font size: 12.0pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <span> | html > body > footer > div:nth-child(3) > div:nth-child(2) > a > span:nth-child(1) | Fix any of the following: Element has insufficient color contrast of 2.98 (foreground color: #1690ed, background color: #d9f7fa, font size: 18.0pt, font weight: bold). Expected contrast ratio of 3:1 |
serious | <span> | html > body > footer > div:nth-child(3) > div:nth-child(2) > a > span:nth-child(2) | Fix any of the following: Element has insufficient color contrast of 2.98 (foreground color: #1690ed, background color: #d9f7fa, font size: 18.0pt, font weight: bold). Expected contrast ratio of 3:1 |
... |
Performance 76/100
Speed Index
-
Speed Index4757target < 4000 ms
The Speed Index measures how quickly the page contents are visually populated / painted, and computes an overall score where lower numbers are better. It is expressed in milliseconds and dependent on size of the viewport (above-the-fold contents). Learn more
Document complete
-
Time6.4seconds
-
Resources26requests
-
Bytes in545.2KB
These metrics are collected from the initial request until the browser considers the page loaded (JavaScript onLoad event). This usually happens after all of the image content has loaded but may not include content that is triggered by javascript execution.
Fully load
-
Time8.1seconds
-
Resources26requests
-
Bytes in545.2KB
These metrics are collected from the initial request until 2 seconds of no network activity after Document Complete (JavaScript onLoad event). This will usually include any activity that is triggered by javascript after the main page loads.
Assets by Domain
Requests
- gpacalculator.io
- fonts.gstatic.com
- www.google-analytics.com
- fonts.googleapis.com
Bytes downloaded
- gpacalculator.io
- fonts.gstatic.com
- www.google-analytics.com
- fonts.googleapis.com
Assets by Mime-Type
Requests
- html
- js
- css
- image
- font
Bytes downloaded
- html
- js
- css
- image
- font
Speed
Load time 6373 ms
Page load is fast enough on 3G
First byte 1697 ms
First meaningful paint 4067.5 ms
Estimated Input Latency 16Â ms (target < 50 ms)
Uses persistent connections (keep alive) Score: 100%
First interactive (beta - experimental) 4146.5 ms
Consistently Interactive (beta - experimental) 4146.5 ms
Page weight
Uses compression (gzip, zopfli, deflate, brotli) Score: 100%
Uses a CDN for all static assets Score: 100%
Leverage browser caching
URL |
---|
https://www.google-analytics.com/plugins/ua/linkid.js (60 minutes) |
https://www.google-analytics.com/analytics.js (2 hours) |
... |
Minify CSS
Minify HTML
Minify JavaScript
Avoids an excessive DOM size 1369 nodes
-
Total DOM Nodes1,369target < 1,500 nodes
-
DOM Depth11target < 32
-
Maximum Children71target < 60 nodes
Compressed Images
Uses Progressive JPEGs n/a
Properly Sized Images
Offscreen images
First impression
Eliminates render-blocking JavaScript and CSS in above-the-fold content
URL |
---|
https://gpacalculator.io/assets/javascripts/application-a54f7215.js |
https://fonts.googleapis.com/css?family=Barlow:400,400i,500 |
https://gpacalculator.io/assets/stylesheets/application-ea08c298.css |
... |
Prioritizes visible content
Improves server response time
Avoids landing page redirects
Usability 100/100
Clicking logo always leads you to homepage.
Key CTAs are visible on the homepage.
No ending trailing paths.
Suports multi-device experiences. Not applicable
For category pages/search result with lots of products, make sure lazy-loading or pagination are used. Not applicable
Possible to swipe to see more images or tap to enlarge them. Not applicable
Streamlines forms information entry. Not applicable
Forms error warnings. Not applicable
Makes site search visible and user-friendly. Not applicable
Keeps your user in a single browser window.
Best Practices 100/100
Avoids Application Cache
Avoids WebSQL DB
Avoids requesting the geolocation permission on page load
Avoids requesting the notification permission on page load
Avoids deprecated APIs
Allows to paste into password input fields
Registers a Service Worker
Responds with a 200 when offline
Uses HTTPS
Redirects HTTP traffic to HTTPS
Uses HTTP/2 for its own resources
Uses passive listeners to improve scrolling performance
Avoid using document.write()
Manifest's short_name won't be truncated when displayed on homescreen
Configured for a custom splash screen
User can be prompted to Install the Web App
Mobile Friendliness 60/100
Configures the viewport
Content is sized correctly for the viewport
Size tap targets appropriately
URL |
---|
The tap target <a href="/high-school-gpa-calculator/">high school GPA calculator</a> is close to 1 other tap targets. |
The tap target <a href="/" class="footer-cell__link">GPA Calculator</a> and 13 others are close to other tap targets. |
... |
Uses legible font sizes
Color Contrast is satisfactory
Impact | Snippet | Target | Failure Summary |
---|---|---|---|
serious | <button class="page-group__button-create js-item-action" data-type="course" data-action="create"> | #js-semesters > li > button.page-group__button-create | Fix any of the following: Element has insufficient color contrast of 3.36 (foreground color: #1690ed, background color: #ffffff, font size: 12.0pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <button class="page-calculator__button-create js-item-action" data-type="semester" data-action="create"> | #cumulative-gpa-calculator > button.page-calculator__button-create.js-item-action | Fix any of the following: Element has insufficient color contrast of 3.36 (foreground color: #1690ed, background color: #ffffff, font size: 12.0pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <a href="/high-school-gpa-calculator/" title="High School GPA Calculator"> | html > body > main > section:nth-child(3) > article > p:nth-child(3) > a:nth-child(1) | Fix any of the following: Element has insufficient color contrast of 3.36 (foreground color: #1690ed, background color: #ffffff, font size: 12.0pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <a href="/college-gpa-calculator/" title="College GPA Calculator"> | html > body > main > section:nth-child(3) > article > p:nth-child(3) > a[href$="college-gpa-calculator/"] | Fix any of the following: Element has insufficient color contrast of 3.36 (foreground color: #1690ed, background color: #ffffff, font size: 12.0pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <a href="/gpa-scale/" title="GPA Scale"> | p:nth-child(12) > a[href$="gpa-scale/"] | Fix any of the following: Element has insufficient color contrast of 3.36 (foreground color: #1690ed, background color: #ffffff, font size: 12.0pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <a href="#cumulative-gpa-calculator" title="Cumulative GPA Calculator"> | p:nth-child(19) > a | Fix any of the following: Element has insufficient color contrast of 3.36 (foreground color: #1690ed, background color: #ffffff, font size: 12.0pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <a href="/grade-calculator/" title="Grade Calculator"> | p:nth-child(39) > a[href$="grade-calculator/"]:nth-child(1) | Fix any of the following: Element has insufficient color contrast of 3.36 (foreground color: #1690ed, background color: #ffffff, font size: 12.0pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <a href="/final-grade-calculator/" title="Final Grade Calculator"> | p:nth-child(39) > a[href$="final-grade-calculator/"] | Fix any of the following: Element has insufficient color contrast of 3.36 (foreground color: #1690ed, background color: #ffffff, font size: 12.0pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <span> | html > body > footer > div:nth-child(3) > div:nth-child(2) > a > span:nth-child(1) | Fix any of the following: Element has insufficient color contrast of 2.98 (foreground color: #1690ed, background color: #d9f7fa, font size: 18.0pt, font weight: bold). Expected contrast ratio of 3:1 |
serious | <span> | html > body > footer > div:nth-child(3) > div:nth-child(2) > a > span:nth-child(2) | Fix any of the following: Element has insufficient color contrast of 2.98 (foreground color: #1690ed, background color: #d9f7fa, font size: 18.0pt, font weight: bold). Expected contrast ratio of 3:1 |
... |
Performance 77/100
Speed Index
-
Speed Index4450target < 4000 ms
The Speed Index measures how quickly the page contents are visually populated / painted, and computes an overall score where lower numbers are better. It is expressed in milliseconds and dependent on size of the viewport (above-the-fold contents). Learn more
Document complete
-
Time5.3seconds
-
Resources25requests
-
Bytes in521.5KB
These metrics are collected from the initial request until the browser considers the page loaded (JavaScript onLoad event). This usually happens after all of the image content has loaded but may not include content that is triggered by javascript execution.
Fully load
-
Time6.9seconds
-
Resources25requests
-
Bytes in521.5KB
These metrics are collected from the initial request until 2 seconds of no network activity after Document Complete (JavaScript onLoad event). This will usually include any activity that is triggered by javascript after the main page loads.
Assets by Domain
Requests
- gpacalculator.io
- www.google-analytics.com
- fonts.gstatic.com
- fonts.googleapis.com
Bytes downloaded
- gpacalculator.io
- fonts.gstatic.com
- www.google-analytics.com
- fonts.googleapis.com
Assets by Mime-Type
Requests
- html
- js
- css
- image
- font
Bytes downloaded
- html
- js
- css
- image
- font
Speed
Load time 5280 ms
Page load is fast enough on 3G
First byte 1676 ms
First meaningful paint 3646 ms
Estimated Input Latency 16Â ms (target < 50 ms)
Uses persistent connections (keep alive) Score: 100%
First interactive (beta - experimental) 3646 ms
Consistently Interactive (beta - experimental) 3646 ms
Page weight
Uses compression (gzip, zopfli, deflate, brotli) Score: 100%
Uses a CDN for all static assets Score: 100%
Leverage browser caching
URL |
---|
https://www.google-analytics.com/plugins/ua/linkid.js (60 minutes) |
https://www.google-analytics.com/analytics.js (2 hours) |
... |
Minify CSS
Minify HTML
Minify JavaScript
Avoids an excessive DOM size 1321 nodes
-
Total DOM Nodes1,321target < 1,500 nodes
-
DOM Depth11target < 32
-
Maximum Children45target < 60 nodes
Compressed Images
Uses Progressive JPEGs n/a
Properly Sized Images
Offscreen images
First impression
Eliminates render-blocking JavaScript and CSS in above-the-fold content
URL |
---|
https://fonts.googleapis.com/css?family=Barlow:400,400i,500 |
https://gpacalculator.io/assets/stylesheets/application-ea08c298.css |
... |
Prioritizes visible content
Improves server response time
Avoids landing page redirects
Usability 100/100
Clicking logo always leads you to homepage.
Key CTAs are visible on the homepage.
No ending trailing paths.
Suports multi-device experiences. Not applicable
For category pages/search result with lots of products, make sure lazy-loading or pagination are used. Not applicable
Possible to swipe to see more images or tap to enlarge them. Not applicable
Streamlines forms information entry. Not applicable
Forms error warnings. Not applicable
Makes site search visible and user-friendly. Not applicable
Keeps your user in a single browser window.
Best Practices 100/100
Avoids Application Cache
Avoids WebSQL DB
Avoids requesting the geolocation permission on page load
Avoids requesting the notification permission on page load
Avoids deprecated APIs
Allows to paste into password input fields
Registers a Service Worker
Responds with a 200 when offline
Uses HTTPS
Redirects HTTP traffic to HTTPS
Uses HTTP/2 for its own resources
Uses passive listeners to improve scrolling performance
Avoid using document.write()
Manifest's short_name won't be truncated when displayed on homescreen
Configured for a custom splash screen
User can be prompted to Install the Web App
Mobile Friendliness 60/100
Configures the viewport
Content is sized correctly for the viewport
Size tap targets appropriately
URL |
---|
The tap target <a href="/" class="footer-cell__link">GPA Calculator</a> and 13 others are close to other tap targets. |
... |
Uses legible font sizes
Color Contrast is satisfactory
Impact | Snippet | Target | Failure Summary |
---|---|---|---|
serious | <button class="page-calculator__button-calculate js-calculator-action" data-action="calculate"> | #final-grade-calculator > button.page-calculator__button-calculate | Fix any of the following: Element has insufficient color contrast of 3.36 (foreground color: #1690ed, background color: #ffffff, font size: 12.0pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <a href="/grade-calculator/" title="Grade Calculator"> | p:nth-child(11) > a[href$="grade-calculator/"] | Fix any of the following: Element has insufficient color contrast of 3.36 (foreground color: #1690ed, background color: #ffffff, font size: 12.0pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <a href="#final-grade-calculator" title="Final Grade Calculator"> | p:nth-child(24) > a[href$="#final-grade-calculator"] | Fix any of the following: Element has insufficient color contrast of 3.36 (foreground color: #1690ed, background color: #ffffff, font size: 12.0pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <a href="/cumulative-gpa-calculator/" title="Cumulative GPA Calculator"> | p:nth-child(37) > a | Fix any of the following: Element has insufficient color contrast of 3.36 (foreground color: #1690ed, background color: #ffffff, font size: 12.0pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <a href="/high-school-gpa-calculator/" title="High School GPA Calculator"> | p:nth-child(39) > a:nth-child(1) | Fix any of the following: Element has insufficient color contrast of 3.36 (foreground color: #1690ed, background color: #ffffff, font size: 12.0pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <a href="/college-gpa-calculator/" title="College GPA Calculator"> | p:nth-child(39) > a[href$="college-gpa-calculator/"] | Fix any of the following: Element has insufficient color contrast of 3.36 (foreground color: #1690ed, background color: #ffffff, font size: 12.0pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <span> | html > body > footer > div:nth-child(3) > div:nth-child(2) > a > span:nth-child(1) | Fix any of the following: Element has insufficient color contrast of 2.98 (foreground color: #1690ed, background color: #d9f7fa, font size: 18.0pt, font weight: bold). Expected contrast ratio of 3:1 |
serious | <span> | html > body > footer > div:nth-child(3) > div:nth-child(2) > a > span:nth-child(2) | Fix any of the following: Element has insufficient color contrast of 2.98 (foreground color: #1690ed, background color: #d9f7fa, font size: 18.0pt, font weight: bold). Expected contrast ratio of 3:1 |
... |
Performance 77/100
Speed Index
-
Speed Index4275target < 4000 ms
The Speed Index measures how quickly the page contents are visually populated / painted, and computes an overall score where lower numbers are better. It is expressed in milliseconds and dependent on size of the viewport (above-the-fold contents). Learn more
Document complete
-
Time5.7seconds
-
Resources26requests
-
Bytes in458.1KB
These metrics are collected from the initial request until the browser considers the page loaded (JavaScript onLoad event). This usually happens after all of the image content has loaded but may not include content that is triggered by javascript execution.
Fully load
-
Time8.2seconds
-
Resources26requests
-
Bytes in458.1KB
These metrics are collected from the initial request until 2 seconds of no network activity after Document Complete (JavaScript onLoad event). This will usually include any activity that is triggered by javascript after the main page loads.
Assets by Domain
Requests
- gpacalculator.io
- fonts.gstatic.com
- www.google-analytics.com
- fonts.googleapis.com
Bytes downloaded
- gpacalculator.io
- fonts.gstatic.com
- www.google-analytics.com
- fonts.googleapis.com
Assets by Mime-Type
Requests
- html
- js
- css
- image
- font
Bytes downloaded
- html
- js
- css
- image
- font
Speed
Load time 5748 ms
Page load is fast enough on 3G
First byte 1625 ms
First meaningful paint 3284 ms
Estimated Input Latency 16Â ms (target < 50 ms)
Uses persistent connections (keep alive) Score: 100%
First interactive (beta - experimental) 3697 ms
Consistently Interactive (beta - experimental) 3697 ms
Page weight
Uses compression (gzip, zopfli, deflate, brotli) Score: 100%
Uses a CDN for all static assets Score: 100%
Leverage browser caching
URL |
---|
https://www.google-analytics.com/plugins/ua/linkid.js (60 minutes) |
https://www.google-analytics.com/analytics.js (2 hours) |
... |
Minify CSS
Minify HTML
Minify JavaScript
Avoids an excessive DOM size 1246 nodes
-
Total DOM Nodes1,246target < 1,500 nodes
-
DOM Depth10target < 32
-
Maximum Children119target < 60 nodes
Compressed Images
Uses Progressive JPEGs n/a
Properly Sized Images
Offscreen images
First impression
Eliminates render-blocking JavaScript and CSS in above-the-fold content
URL |
---|
https://fonts.googleapis.com/css?family=Barlow:400,400i,500 |
https://gpacalculator.io/assets/stylesheets/application-ea08c298.css |
... |
Prioritizes visible content
Improves server response time
Avoids landing page redirects
Usability 100/100
Clicking logo always leads you to homepage.
Key CTAs are visible on the homepage.
No ending trailing paths.
Suports multi-device experiences. Not applicable
For category pages/search result with lots of products, make sure lazy-loading or pagination are used. Not applicable
Possible to swipe to see more images or tap to enlarge them. Not applicable
Streamlines forms information entry. Not applicable
Forms error warnings. Not applicable
Makes site search visible and user-friendly. Not applicable
Keeps your user in a single browser window.
Best Practices 100/100
Avoids Application Cache
Avoids WebSQL DB
Avoids requesting the geolocation permission on page load
Avoids requesting the notification permission on page load
Avoids deprecated APIs
Allows to paste into password input fields
Registers a Service Worker
Responds with a 200 when offline
Uses HTTPS
Redirects HTTP traffic to HTTPS
Uses HTTP/2 for its own resources
Uses passive listeners to improve scrolling performance
Avoid using document.write()
Manifest's short_name won't be truncated when displayed on homescreen
Configured for a custom splash screen
User can be prompted to Install the Web App
This report was built using several Google, 3rd-party and Awwwards audit tools and services for metrics, web performance optimization, and best practices for mobile design and development.
Loading time vary depending on network, device, server, site design, and implementation.
These are the environments used to create this report:
Webpagetest | Test Location | Dulles VA USA |
Browser | MotoG4 Chrome | |
Connection | Mobile 3G (1.6 Mbps / 768 Kbps 300ms RTT) | |
Number of Runs | 1 | |
User Agent | Default | |
Lighthouse | User agent | Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5 Build/MRA58N) AppleWebKit/537.36(KHTML, like Gecko) Chrome/61.0.3116.0 Mobile Safari/537.36 |
Device Emulation | Nexus 5X o MotoG | |
Network Throttling | 1.4Mbps down, 0.7Mbps up, 562.5ms RTT (PageSpeed uses Chrome on Moto G4 within a 3G network) | |
CPU Throttling | 4x slowdown | |
PageSpeed Insights Mobile | Environment | Default |
TestMySite | Environment | Default |