Tools & Wizards About Us

Report Summary

  • 72

    Performance

    Renders faster than
    82% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 44% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

sffiremuseum.org

San Francisco Fire Department Museum ~ Home Page

Page Load Speed

2.3 sec in total

First Response

173 ms

Resources Loaded

2 sec

Page Rendered

112 ms

About Website

Click here to check amazing Sf Fire Museum content. Otherwise, check out these important facts you probably never knew about sffiremuseum.org

This is the Home Page of the San Francisco Fire Deparment Museum. The Museum is sponsored by the San Francisco Fire Department Historical Society.

Visit sffiremuseum.org

Key Findings

We analyzed Sffiremuseum.org page load time and found that the first response time was 173 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

sffiremuseum.org performance score

72

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

52/100

10%

LCP (Largest Contentful Paint)

Value4.7 s

32/100

25%

SI (Speed Index)

Value5.5 s

55/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.7 s

80/100

10%

Network Requests Diagram

sffiremuseum.org

173 ms

sffiremuseum.org

324 ms

index.html

179 ms

index.html

755 ms

new.css

77 ms

Our browser made a total of 32 requests to load all elements on the main page. We found that 6% of them (2 requests) were addressed to the original Sffiremuseum.org, 81% (26 requests) were made to Guardiansofthecity.org and 6% (2 requests) were made to Paypalobjects.com. The less responsive or slowest element that took the longest time to load (755 ms) relates to the external source Guardiansofthecity.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 118.3 kB (32%)

Content Size

368.8 kB

After Optimization

250.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sffiremuseum.org main page is 368.8 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. 20% of websites need less resources to load. Images take 321.9 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 18.1 kB

  • Original 24.5 kB
  • After minification 22.2 kB
  • After compression 6.4 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 18.1 kB or 74% of the original size.

Image Optimization

-30%

Potential reduce by 96.0 kB

  • Original 321.9 kB
  • After minification 226.0 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, Sf Fire Museum needs image optimization as it can save up to 96.0 kB or 30% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 55 B

  • Original 17.3 kB
  • After minification 17.2 kB
  • After compression 17.2 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. This website has mostly compressed JavaScripts.

CSS Optimization

-83%

Potential reduce by 4.2 kB

  • Original 5.1 kB
  • After minification 4.1 kB
  • After compression 880 B

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. Sffiremuseum.org needs all CSS files to be minified and compressed as it can save up to 4.2 kB or 83% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

28

After Optimization

28

  • Images
  • JavaScript
  • CSS

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sf Fire Museum. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

sffiremuseum.org accessibility score

77

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

sffiremuseum.org best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

SEO Factors

sffiremuseum.org SEO score

75

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sffiremuseum.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 Sffiremuseum.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.

Social Sharing Optimization

Open Graph description is not detected on the main page of Sf Fire Museum. 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: