3.2 sec in total
175 ms
2.7 sec
231 ms
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Visit boulderlibrary.orgWe analyzed Boulderlibrary.org page load time and found that the first response time was 175 ms and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
boulderlibrary.org performance score
name
value
score
weighting
Value2.8 s
58/100
10%
Value7.2 s
5/100
25%
Value6.8 s
35/100
10%
Value470 ms
61/100
30%
Value0.894
3/100
15%
Value10.1 s
26/100
10%
175 ms
1008 ms
232 ms
129 ms
255 ms
Our browser made a total of 55 requests to load all elements on the main page. We found that 71% of them (39 requests) were addressed to the original Boulderlibrary.org, 20% (11 requests) were made to Boulder.flatironslibrary.org and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Boulderlibrary.org.
Page size can be reduced by 1.8 MB (74%)
2.5 MB
650.1 kB
In fact, the total size of Boulderlibrary.org main page is 2.5 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. 40% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.
Potential reduce by 42.8 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 42.8 kB or 81% of the original size.
Potential reduce by 806.1 kB
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. Obviously, Boulder Library needs image optimization as it can save up to 806.1 kB or 72% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 603.6 kB
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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 603.6 kB or 70% of the original size.
Potential reduce by 355.4 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Boulderlibrary.org needs all CSS files to be minified and compressed as it can save up to 355.4 kB or 84% of the original size.
Number of requests can be reduced by 20 (38%)
53
33
The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Boulder Library. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
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boulderlibrary.org accessibility score
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Buttons do not have an accessible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
boulderlibrary.org best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
boulderlibrary.org SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Boulderlibrary.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 Boulderlibrary.org main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
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boulderlibrary.org
Open Graph description is not detected on the main page of Boulder Library. 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: