Tools & Wizards About Us
slpl.org screenshot

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 89

    SEO

    Google-friendlier than
    67% of websites

slpl.org

St. Louis Public Library

Page Load Speed

1.2 sec in total

First Response

162 ms

Resources Loaded

929 ms

Page Rendered

130 ms

slpl.org screenshot

About Website

Visit slpl.org now to see the best up-to-date Slpl content for United States and also check out these interesting facts you probably never knew about slpl.org

The St. Louis Public Library has 17 locations across the city and sees more than 2.3 million visitors each year. The Library has more…

Visit slpl.org

Key Findings

We analyzed Slpl.org page load time and found that the first response time was 162 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

slpl.org performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

13/100

10%

LCP (Largest Contentful Paint)

Value5.3 s

22/100

25%

SI (Speed Index)

Value5.9 s

47/100

10%

TBT (Total Blocking Time)

Value2,000 ms

8/100

30%

CLS (Cumulative Layout Shift)

Value0.172

69/100

15%

TTI (Time to Interactive)

Value16.4 s

5/100

10%

Network Requests Diagram

slpl.org

162 ms

index.asp

236 ms

chrome.js

159 ms

catalogItems.js

80 ms

slpl.js

80 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 76% of them (28 requests) were addressed to the original Slpl.org, 5% (2 requests) were made to Maxcdn.bootstrapcdn.com and 5% (2 requests) were made to Chat.mosio.com. The less responsive or slowest element that took the longest time to load (368 ms) relates to the external source Chat.mosio.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 274.3 kB (26%)

Content Size

1.0 MB

After Optimization

768.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Slpl.org main page is 1.0 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. 30% of websites need less resources to load. Images take 739.1 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 12.1 kB

  • Original 16.1 kB
  • After minification 12.9 kB
  • After compression 4.1 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 3.2 kB, which is 20% 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 12.1 kB or 75% of the original size.

Image Optimization

-8%

Potential reduce by 55.5 kB

  • Original 739.1 kB
  • After minification 683.6 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. Slpl images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 148.1 kB

  • Original 214.9 kB
  • After minification 192.5 kB
  • After compression 66.8 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 148.1 kB or 69% of the original size.

CSS Optimization

-81%

Potential reduce by 58.7 kB

  • Original 72.2 kB
  • After minification 55.9 kB
  • After compression 13.5 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. Slpl.org needs all CSS files to be minified and compressed as it can save up to 58.7 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (44%)

Requests Now

32

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Slpl. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

slpl.org

slpl.org

162 ms

index.asp

index.asp

236 ms

chrome.js

chrome.js

159 ms

catalogItems.js

catalogItems.js

80 ms

slpl.js

slpl.js

80 ms

slpl_inside.css

slpl_inside.css

165 ms

slpl_menus.css

slpl_menus.css

118 ms

chromestyle.css

chromestyle.css

110 ms

mainStyle.css

mainStyle.css

164 ms

interiorStyle.css

interiorStyle.css

165 ms

font-awesome.min.css

font-awesome.min.css

29 ms

css

css

60 ms

jquery-1.7.2.min.js

jquery-1.7.2.min.js

267 ms

jquery.cycle.all.js

jquery.cycle.all.js

286 ms

widget.js

widget.js

368 ms

analytics.js

analytics.js

20 ms

collect

collect

12 ms

logo.gif

logo.gif

45 ms

chromebg2.gif

chromebg2.gif

45 ms

searchSite.gif

searchSite.gif

45 ms

searchGo.gif

searchGo.gif

45 ms

photography_exhibit.jpg

photography_exhibit.jpg

117 ms

fft-2016-banner.jpg

fft-2016-banner.jpg

118 ms

amgirl-3-26-final.jpg

amgirl-3-26-final.jpg

119 ms

photography_online_exhibit.jpg

photography_online_exhibit.jpg

198 ms

rif-3-2-rev.jpg

rif-3-2-rev.jpg

197 ms

foundation_2015.jpg

foundation_2015.jpg

198 ms

food_for_thought_logo.png

food_for_thought_logo.png

193 ms

getacard_thumbnail2.png

getacard_thumbnail2.png

147 ms

downloadables_thumbnail.png

downloadables_thumbnail.png

149 ms

learning_research_thumbnail.png

learning_research_thumbnail.png

187 ms

howDoI.jpg

howDoI.jpg

189 ms

5Ywdce7XEbTSbxs__4X1_AzXKzPdQ5IRTaDVrbjtIFE.ttf

5Ywdce7XEbTSbxs__4X1_AzXKzPdQ5IRTaDVrbjtIFE.ttf

59 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

3 ms

widget_styled.css

widget_styled.css

72 ms

print.css

print.css

51 ms

tab_aaq2.png

tab_aaq2.png

86 ms

Accessibility Review

slpl.org accessibility score

100

Accessibility Issues

Best Practices

slpl.org best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

slpl.org SEO score

89

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    WINDOWS-1252

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Slpl.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Slpl.org main page’s claimed encoding is windows-1252. 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.

Social Sharing Optimization

slpl.org

Open Graph description is not detected on the main page of Slpl. 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: