2.2 sec in total
246 ms
1.8 sec
111 ms
Welcome to sfpl.lib.ca.us homepage info - get ready to check Sfpl Lib best content for United States right away, or after learning these important things about sfpl.lib.ca.us
The website of the San Francisco Public Library.
Visit sfpl.lib.ca.usWe analyzed Sfpl.lib.ca.us page load time and found that the first response time was 246 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.
sfpl.lib.ca.us performance score
246 ms
465 ms
342 ms
176 ms
176 ms
Our browser made a total of 33 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Sfpl.lib.ca.us, 88% (29 requests) were made to Sfpl.org and 6% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (578 ms) relates to the external source Sfpl.org.
Page size can be reduced by 369.1 kB (60%)
618.3 kB
249.1 kB
In fact, the total size of Sfpl.lib.ca.us main page is 618.3 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 15% of websites need less resources to load. Images take 303.3 kB which makes up the majority of the site volume.
Potential reduce by 14.9 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. This page needs HTML code to be minified as it can gain 3.0 kB, which is 16% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 14.9 kB or 77% of the original size.
Potential reduce by 149.8 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, Sfpl Lib needs image optimization as it can save up to 149.8 kB or 49% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 159.9 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 159.9 kB or 67% of the original size.
Potential reduce by 44.5 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. Sfpl.lib.ca.us needs all CSS files to be minified and compressed as it can save up to 44.5 kB or 80% of the original size.
Number of requests can be reduced by 17 (55%)
31
14
The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sfpl Lib. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
sfpl.lib.ca.us
246 ms
sfpl.org
465 ms
basic.css
342 ms
basic.css.php
176 ms
mediumtext.css
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home.css
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require.js
344 ms
map.js
431 ms
home.js
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analytics.js
32 ms
page_white.gif
91 ms
background_header.jpg
258 ms
facebook_icon.gif
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twitter.png
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pinterest.15x15.png
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instagram.15x15.png
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2024.jpg
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bullet.gif
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womenshistory.jpg
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hoopla.jpg
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maker.jpg
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friends.jpg
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sfpl_historical_photo.jpg
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search.png
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city_seal.gif
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survey.png
578 ms
dialog.png
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jquery-1.10.2.min.js
497 ms
urlParams.js
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sdk.js
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collect
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jquery.placeholder.min.js
89 ms
print.css
88 ms
sfpl.lib.ca.us SEO score
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sfpl.lib.ca.us 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 Sfpl.lib.ca.us 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.
sfpl.lib.ca.us
Open Graph data is detected on the main page of Sfpl Lib. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: