2 sec in total
18 ms
1.4 sec
634 ms
Click here to check amazing Preview Wellcome Collection content for United States. Otherwise, check out these important facts you probably never knew about preview.wellcomecollection.org
Visit our free museum and library in central London connecting science, medicine, life and art. Explore our exhibitions, live events, gallery tours and café. Fully accessible.
Visit preview.wellcomecollection.orgWe analyzed Preview.wellcomecollection.org page load time and found that the first response time was 18 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
preview.wellcomecollection.org performance score
name
value
score
weighting
Value1.9 s
87/100
10%
Value6.9 s
6/100
25%
Value3.4 s
89/100
10%
Value1,880 ms
9/100
30%
Value0.042
99/100
15%
Value8.0 s
42/100
10%
18 ms
1091 ms
103 ms
295 ms
39 ms
Our browser made a total of 34 requests to load all elements on the main page. We found that 6% of them (2 requests) were addressed to the original Preview.wellcomecollection.org, 35% (12 requests) were made to Content.www.wellcomecollection.org and 29% (10 requests) were made to Images.prismic.io. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Preview.wellcomecollection.org.
Page size can be reduced by 138.7 kB (10%)
1.4 MB
1.3 MB
In fact, the total size of Preview.wellcomecollection.org main page is 1.4 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 55% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.
Potential reduce by 138.6 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 138.6 kB or 77% of the original size.
Potential reduce by 0 B
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Preview Wellcome Collection images are well optimized though.
Potential reduce by 120 B
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.
Number of requests can be reduced by 15 (56%)
27
12
The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Preview Wellcome Collection. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and as a result speed up the page load time.
preview.wellcomecollection.org
18 ms
preview.wellcomecollection.org
1091 ms
gtm.js
103 ms
analytics.min.js
295 ms
polyfills-c67a75d1b6f99dc8.js
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webpack-235535d2014f1d6e.js
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framework-efbec734d81f6e89.js
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main-74d7cc624ff0880f.js
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index-85132438a2a5e5c6.js
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14e8512a-6606-416e-852f-76fe8422c557_Tinuke_+Fagborun_Equality_Genetics_0001.jpg
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812f5d98-7689-4d63-966f-e37dfaf1e8af_Ohara_Savva_DNA_repair_protein_0004.jpg
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web-vitals.attribution.iife.js
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Inter-Regular.woff
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Inter-Medium.woff
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Inter-SemiBold.woff
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Inter-Bold.woff
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preview.wellcomecollection.org accessibility score
preview.wellcomecollection.org best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
preview.wellcomecollection.org SEO score
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
Tap targets are not sized appropriately
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Preview.wellcomecollection.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Preview.wellcomecollection.org main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
preview.wellcomecollection.org
Open Graph description is not detected on the main page of Preview Wellcome Collection. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: