Report Summary

  • 67

    Performance

    Renders faster than
    80% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

sutrotower.org

Sutro Tower at Mount Sutro

Page Load Speed

6.7 sec in total

First Response

85 ms

Resources Loaded

1.3 sec

Page Rendered

5.4 sec

sutrotower.org screenshot

About Website

Visit sutrotower.org now to see the best up-to-date Sutro Tower content and also check out these interesting facts you probably never knew about sutrotower.org

A comprehensive guide to Sutro Tower and Mount Sutro by David July.

Visit sutrotower.org

Key Findings

We analyzed Sutrotower.org page load time and found that the first response time was 85 ms and then it took 6.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

sutrotower.org performance score

67

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

36/100

10%

LCP (Largest Contentful Paint)

Value7.2 s

5/100

25%

SI (Speed Index)

Value3.8 s

84/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.044

99/100

15%

TTI (Time to Interactive)

Value3.6 s

91/100

10%

Network Requests Diagram

sutrotower.org

85 ms

sutrotower.org

610 ms

style.css

145 ms

header-logo.png

129 ms

0.png

170 ms

Our browser made a total of 123 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Sutrotower.org, 98% (121 requests) were made to Mountsutro.org. The less responsive or slowest element that took the longest time to load (610 ms) belongs to the original domain Sutrotower.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 183.3 kB (4%)

Content Size

4.2 MB

After Optimization

4.0 MB

In fact, the total size of Sutrotower.org main page is 4.2 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 4.0 MB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 159.4 kB

  • Original 220.3 kB
  • After minification 213.0 kB
  • After compression 60.9 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. 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 159.4 kB or 72% of the original size.

Image Optimization

-0%

Potential reduce by 8.0 kB

  • Original 4.0 MB
  • After minification 4.0 MB

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. Sutro Tower images are well optimized though.

CSS Optimization

-81%

Potential reduce by 15.8 kB

  • Original 19.6 kB
  • After minification 15.3 kB
  • After compression 3.8 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. Sutrotower.org needs all CSS files to be minified and compressed as it can save up to 15.8 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 37 (31%)

Requests Now

120

After Optimization

83

The browser has sent 120 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sutro Tower. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Accessibility Review

sutrotower.org accessibility score

82

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Best Practices

sutrotower.org best practices score

75

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

sutrotower.org SEO score

77

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

Social Sharing Optimization

Open Graph data is detected on the main page of Sutro Tower. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: