Climate History
-
0Friendliness
-
0Performance
-
0Usability
-
0PWA
-
0Total
Mobile Friendliness 100/100
Content is not blocked for zoom/scale
Content is sized correctly for the viewport
Uses legible font sizes
Color Contrast is satisfactory
Performance 67/100
Speed Index
-
Speed Index6092.51target < 4500 ms
Speed Index is a page load performance metric that shows you how quickly the contents of a page are visibly populated. The lower the score, the better. Source: Lighthouse - Learn more
Document complete
-
Time6.3seconds
-
Resources24requests
-
Bytes in732.7KB
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
-
Time6.7seconds
-
Resources25requests
-
Bytes in733.1KB
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
- climatehistory.org
- cdnjs.cloudflare.com
- uploads-ssl.webflow.com
- min30327.github.io
- cdn.jsdelivr.net
- d3e54v103j8qbb.cloudfront.net
Bytes downloaded
- climatehistory.org
- cdnjs.cloudflare.com
- d3e54v103j8qbb.cloudfront.net
- cdn.jsdelivr.net
- min30327.github.io
- uploads-ssl.webflow.com
Assets by Mime-Type
Requests
- html
- js
- css
- image
- font
- other
Bytes downloaded
- html
- js
- css
- image
- font
- other
Speed
Load time6268 ms
Page load is fast enough on 3G
First byte1505 ms
First Contentful Paint5558.242 ms
First meaningful paint5558.242 ms
Estimated Input Latency12 ms (target < 50 ms)
Uses persistent connections (keep alive)Score: 100%
First CPU Idle5558.24 ms
Time to Interactive5558.24 ms
Page weight
Uses compression (gzip, zopfli, deflate, brotli)Score: 75%
Uses a CDN for all static assetsScore: 29%
Leverage browser caching
13 resources found
URL |
---|
https://climatehistory.org/fonts/SaolDisplay-SemiboldItalic.ttf ( 0 0 ) |
https://climatehistory.org/fonts/SaolDisplay-Normal.ttf ( 0 0 ) |
https://climatehistory.org/fonts/HelveticaNeueCyr-Roman.ttf ( 0 0 ) |
https://climatehistory.org/fonts/HelveticaNeueCyr-Medium.ttf ( 0 0 ) |
https://min30327.github.io/luxy.js/dist/js/luxy.js ( 10 minutes ) |
https://climatehistory.org/images/BG.svg ( 1 week ) |
https://climatehistory.org/images/Mobile-Map.svg ( 1 week ) |
https://climatehistory.org/images/dots-menu-1.svg ( 1 week ) |
https://climatehistory.org/js/webflow.js ( 2 weeks ) |
https://climatehistory.org/css/climatehistory2021.webflow.css ( 2 weeks ) |
https://climatehistory.org/css/webflow.css ( 2 weeks ) |
https://climatehistory.org/images/orange-oval.png ( 2 weeks ) |
https://climatehistory.org/css/normalize.css ( 2 weeks ) |
... |
Minify CSS
Potential savings of 10 KiB
URL |
---|
https://climatehistory.org/css/climatehistory2021.webflow.css<\/span> ( 19.61% ) |
https://climatehistory.org/css/webflow.css<\/span> ( 22.77% ) |
https://climatehistory.org/css/normalize.css<\/span> ( 75.30% ) |
... |
Minify JavaScript
Avoids an excessive DOM size444 nodes
-
Total DOM Nodes444target < 1,500 nodes
-
DOM Depth14target < 32
-
Maximum Children25target < 60 nodes
Compressed Images
Uses Progressive JPEGsn/a
Properly Sized Images
Offscreen images
First impression
Eliminates render-blocking JavaScript and CSS in above-the-fold content
Potential savings of 1,210 ms
URL |
---|
https://climatehistory.org/css/webflow.css<\/span> |
https://climatehistory.org/css/climatehistory2021.webflow.css<\/span> |
https://cdnjs.cloudflare.com/ajax/libs/animate.css/3.7.2/animate.min.css<\/span> |
... |
Improves server response time
Avoids landing page redirects
Usability 83/100 Industry: Storytelling / Game
Brand logo linked to homepage
No ending trailing paths
Active section is highlighted in navigation menus
Contents are loaded on demand
Sound controlNot applicable
Website can be shared
Prevent layout shiftings when loading media. Set width and height attributes on both <img> and <video> tags
The most appropriate keyboard for the input type is provided firstNot applicable
The website supports autofill for all form fields and the fields are tagged for the appropriate information from autofillNot applicable
All mistakes made in forms are clearly highlighted in real time, and instructions for correct completion are provided in real timeNot applicable
PWA / Best Practices 82/100
Avoids Application Cache
Avoids WebSQL DB
Avoids requesting the geolocation permission on page load
robots.txt is valid
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 100/100
Content is not blocked for zoom/scale
Content is sized correctly for the viewport
Uses legible font sizes
Color Contrast is satisfactory
Performance 70/100
Speed Index
-
Speed Index4196.05target < 4500 ms
Speed Index is a page load performance metric that shows you how quickly the contents of a page are visibly populated. The lower the score, the better. Source: Lighthouse - Learn more
Document complete
-
Time8.5seconds
-
Resources30requests
-
Bytes in1018.5KB
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
-
Time8.9seconds
-
Resources31requests
-
Bytes in1019KB
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
- climatehistory.org
- cdnjs.cloudflare.com
- uploads-ssl.webflow.com
- min30327.github.io
- cdn.jsdelivr.net
- d3e54v103j8qbb.cloudfront.net
Bytes downloaded
- climatehistory.org
- cdnjs.cloudflare.com
- d3e54v103j8qbb.cloudfront.net
- cdn.jsdelivr.net
- min30327.github.io
- uploads-ssl.webflow.com
Assets by Mime-Type
Requests
- html
- js
- css
- image
- font
- other
Bytes downloaded
- html
- js
- css
- image
- font
- other
Speed
Load time8492 ms
Page load is fast enough on 3G
First byte1483 ms
First Contentful Paint3032.961 ms
First meaningful paint3032.961 ms
Estimated Input Latency12 ms (target < 50 ms)
Uses persistent connections (keep alive)Score: 100%
First CPU Idle3032.96 ms
Time to Interactive3032.96 ms
Page weight
Uses compression (gzip, zopfli, deflate, brotli)Score: 70%
Uses a CDN for all static assetsScore: 20%
Leverage browser caching
21 resources found
URL |
---|
https://climatehistory.org/fonts/SaolDisplay-RegularItalic.ttf ( 0 0 ) |
https://climatehistory.org/fonts/SaolDisplay-SemiboldItalic.ttf ( 0 0 ) |
https://climatehistory.org/fonts/SaolDisplay-Normal.ttf ( 0 0 ) |
https://climatehistory.org/fonts/HelveticaNeueCyr-Roman.ttf ( 0 0 ) |
https://climatehistory.org/fonts/HelveticaNeueCyr-Medium.ttf ( 0 0 ) |
https://min30327.github.io/luxy.js/dist/js/luxy.js ( 10 minutes ) |
https://climatehistory.org/images/BG.svg ( 1 week ) |
https://climatehistory.org/images/dots-menu-1.svg ( 1 week ) |
https://climatehistory.org/images/close-details.svg ( 1 week ) |
https://climatehistory.org/images/cat-white-arrow.svg ( 1 week ) |
https://climatehistory.org/images/dropdown-up.svg ( 1 week ) |
https://climatehistory.org/js/webflow.js ( 2 weeks ) |
https://climatehistory.org/images/org-photo1.jpg ( 2 weeks ) |
https://climatehistory.org/images/coal.jpg ( 2 weeks ) |
https://climatehistory.org/images/matter-of-deg.jpg ( 2 weeks ) |
https://climatehistory.org/images/deap-sea.jpg ( 2 weeks ) |
https://climatehistory.org/css/climatehistory2021.webflow.css ( 2 weeks ) |
https://climatehistory.org/images/wwf2.jpg ( 2 weeks ) |
https://climatehistory.org/images/aurora.jpg ( 2 weeks ) |
https://climatehistory.org/css/webflow.css ( 2 weeks ) |
https://climatehistory.org/css/normalize.css ( 2 weeks ) |
... |
Minify CSS
Potential savings of 10 KiB
URL |
---|
https://climatehistory.org/css/climatehistory2021.webflow.css<\/span> ( 19.61% ) |
https://climatehistory.org/css/normalize.css<\/span> ( 75.30% ) |
https://climatehistory.org/css/webflow.css<\/span> ( 22.77% ) |
... |
Minify JavaScript
Avoids an excessive DOM size1277 nodes
-
Total DOM Nodes1,277target < 1,500 nodes
-
DOM Depth17target < 32
-
Maximum Children21target < 60 nodes
Compressed ImagesPotential savings of 26 KB
Thumbnails | URL | Original | Potential Savings |
---|---|---|---|
![]() | https://climatehistory.org/images/org-photo1.jpg | 40 KB | 26 KB (64%) |
... |
Uses Progressive JPEGsScore: 0 %
Properly Sized ImagesPotential savings of 10 KB
Offscreen images
First impression
Eliminates render-blocking JavaScript and CSS in above-the-fold content
Potential savings of 150 ms
URL |
---|
https://climatehistory.org/css/climatehistory2021.webflow.css<\/span> |
... |
Improves server response time
Avoids landing page redirects
Usability 83/100 Industry: Storytelling / Game
Brand logo linked to homepage
No ending trailing paths
Active section is highlighted in navigation menus
Contents are loaded on demand
Sound controlNot applicable
Website can be shared
Prevent layout shiftings when loading media. Set width and height attributes on both <img> and <video> tags
The most appropriate keyboard for the input type is provided firstNot applicable
The website supports autofill for all form fields and the fields are tagged for the appropriate information from autofillNot applicable
All mistakes made in forms are clearly highlighted in real time, and instructions for correct completion are provided in real timeNot applicable
PWA / Best Practices 82/100
Avoids Application Cache
Avoids WebSQL DB
Avoids requesting the geolocation permission on page load
robots.txt is valid
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 67/100
Content is not blocked for zoom/scale
Content is sized correctly for the viewport
Uses legible font sizes
Color Contrast is satisfactory
Failing Elements
Impact | Snippet | Target | Failure Summary |
---|---|---|---|
serious | <div style="transform: translate3d(0%, 0px, 0px) scale3d(1, 1, 1) rotateX(0deg) rotateY(0deg) rotateZ(0deg) skew(0deg, 0deg); opacity: 1; transform-style: preserve-3d;" class="chapter-number">chapter I</div> | .banner > .chapter-number | Fix any of the following: Element has insufficient color contrast of 2.36 (foreground color: #e4e1de, background color: #ff5b40, font size: 10.5pt, font weight: normal). Expected contrast ratio of 4.5:1 |
serious | <div class="small-year">1820</div> | .title-year-block > .year-block > .small-year | Fix any of the following: Element has insufficient color contrast of 2.36 (foreground color: #e4e1de, background color: #ff5b40, font size: 10.5pt, font weight: normal). Expected contrast ratio of 4.5:1 |
... |
Performance 70/100
Speed Index
-
Speed Index4521.61target < 4500 ms
Speed Index is a page load performance metric that shows you how quickly the contents of a page are visibly populated. The lower the score, the better. Source: Lighthouse - Learn more
Document complete
-
Time8.3seconds
-
Resources31requests
-
Bytes in1.3MB
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
-
Time10.1seconds
-
Resources32requests
-
Bytes in1.3MB
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
- climatehistory.org
- cdnjs.cloudflare.com
- uploads-ssl.webflow.com
- min30327.github.io
- cdn.jsdelivr.net
- d3e54v103j8qbb.cloudfront.net
Bytes downloaded
- climatehistory.org
- cdnjs.cloudflare.com
- d3e54v103j8qbb.cloudfront.net
- cdn.jsdelivr.net
- min30327.github.io
- uploads-ssl.webflow.com
Assets by Mime-Type
Requests
- html
- js
- css
- image
- font
- other
Bytes downloaded
- html
- js
- css
- image
- font
- other
Speed
Load time8316 ms
Page load is fast enough on 3G
First byte1575 ms
First Contentful Paint3118.005 ms
First meaningful paint3118.005 ms
Estimated Input Latency12 ms (target < 50 ms)
Uses persistent connections (keep alive)Score: 100%
First CPU Idle3118.01 ms
Time to Interactive3118.01 ms
Page weight
Uses compression (gzip, zopfli, deflate, brotli)Score: 77%
Uses a CDN for all static assetsScore: 19%
Leverage browser caching
19 resources found
URL |
---|
https://climatehistory.org/fonts/SaolDisplay-SemiboldItalic.ttf ( 0 0 ) |
https://climatehistory.org/fonts/SaolDisplay-Normal.ttf ( 0 0 ) |
https://climatehistory.org/fonts/HelveticaNeueCyr-Roman.ttf ( 0 0 ) |
https://climatehistory.org/fonts/HelveticaNeueCyr-Medium.ttf ( 0 0 ) |
https://min30327.github.io/luxy.js/dist/js/luxy.js ( 10 minutes ) |
https://climatehistory.org/images/BG-light.svg ( 1 week ) |
https://climatehistory.org/images/BG.svg ( 1 week ) |
https://climatehistory.org/images/footer-scale.svg ( 1 week ) |
https://climatehistory.org/images/dots-menu-light.svg ( 1 week ) |
https://climatehistory.org/js/webflow.js ( 2 weeks ) |
https://climatehistory.org/images/1820-img4.png ( 2 weeks ) |
https://climatehistory.org/images/1820-img2_1.jpg ( 2 weeks ) |
https://climatehistory.org/images/1830-ir.png ( 2 weeks ) |
https://climatehistory.org/css/climatehistory2021.webflow.css ( 2 weeks ) |
https://climatehistory.org/images/1820-3.jpg ( 2 weeks ) |
https://climatehistory.org/images/Industrial.png ( 2 weeks ) |
https://climatehistory.org/css/webflow.css ( 2 weeks ) |
https://climatehistory.org/images/BG.png ( 2 weeks ) |
https://climatehistory.org/css/normalize.css ( 2 weeks ) |
... |
Minify CSS
Potential savings of 10 KiB
URL |
---|
https://climatehistory.org/css/climatehistory2021.webflow.css<\/span> ( 19.61% ) |
https://climatehistory.org/css/webflow.css<\/span> ( 22.77% ) |
https://climatehistory.org/css/normalize.css<\/span> ( 75.30% ) |
... |
Minify JavaScript
Avoids an excessive DOM size484 nodes
-
Total DOM Nodes484target < 1,500 nodes
-
DOM Depth15target < 32
-
Maximum Children21target < 60 nodes
Compressed ImagesPotential savings of 51 KB
Thumbnails | URL | Original | Potential Savings |
---|---|---|---|
![]() | https://climatehistory.org/images/1820-img2_1.jpg | 90 KB | 51 KB (56%) |
... |
Uses Progressive JPEGsScore: 0 %
Properly Sized Images
Offscreen images
First impression
Eliminates render-blocking JavaScript and CSS in above-the-fold content
Potential savings of 220 ms
URL |
---|
https://climatehistory.org/css/webflow.css<\/span> |
https://climatehistory.org/css/climatehistory2021.webflow.css<\/span> |
... |
Improves server response time
Avoids landing page redirects
Usability 83/100 Industry: Storytelling / Game
Brand logo linked to homepage
No ending trailing paths
Active section is highlighted in navigation menus
Contents are loaded on demand
Sound controlNot applicable
Website can be shared
Prevent layout shiftings when loading media. Set width and height attributes on both <img> and <video> tags
The most appropriate keyboard for the input type is provided firstNot applicable
The website supports autofill for all form fields and the fields are tagged for the appropriate information from autofillNot applicable
All mistakes made in forms are clearly highlighted in real time, and instructions for correct completion are provided in real timeNot applicable
PWA / Best Practices 82/100
Avoids Application Cache
Avoids WebSQL DB
Avoids requesting the geolocation permission on page load
robots.txt is valid
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 manually by Awwwards experts taking care personally of every detail using several Google and 3rd-party 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 | Virginia USA - EC2 |
Browser | Chrome - Emulated Motorola G (gen 4) | |
Connection | Mobile 3G (1.6 Mbps / 768 Kbps 300ms RTT) | |
Number of Runs | 1 | |
User Agent | Default | |
Lighthouse | User agent | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36 |
Device Emulation | Emulated Nexus 5X | |
Network Throttling | 150ms TCP RTT, 1,638.4 Kbps throughput (Simulated) | |
CPU Throttling | 4x slowdown (Simulated) | |
PageSpeed Insights | Environment | Mobile |