Report Summary

  • 65

    Performance

    Renders faster than
    78% of other websites

  • 47

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

historicalaerials.com

Historical Aerials: Environmental Assessment Photos | Southern California

Page Load Speed

1.4 sec in total

First Response

78 ms

Resources Loaded

1.2 sec

Page Rendered

154 ms

About Website

Visit historicalaerials.com now to see the best up-to-date Historical Aerials content and also check out these interesting facts you probably never knew about historicalaerials.com

Historical Aerials provides aerial photography dating back through most of the past century in most of Southern California.

Visit historicalaerials.com

Key Findings

We analyzed Historicalaerials.com page load time and found that the first response time was 78 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

historicalaerials.com performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

59/100

10%

LCP (Largest Contentful Paint)

Value6.4 s

9/100

25%

SI (Speed Index)

Value3.4 s

89/100

10%

TBT (Total Blocking Time)

Value200 ms

89/100

30%

CLS (Cumulative Layout Shift)

Value0.054

98/100

15%

TTI (Time to Interactive)

Value5.9 s

66/100

10%

Network Requests Diagram

historicalaerials.com

78 ms

www.historicalaerials.com

827 ms

style.css

4 ms

style.min.css

9 ms

styles.css

11 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 88% of them (36 requests) were addressed to the original Historicalaerials.com, 5% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (827 ms) belongs to the original domain Historicalaerials.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 66.0 kB (14%)

Content Size

478.1 kB

After Optimization

412.1 kB

In fact, the total size of Historicalaerials.com main page is 478.1 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. 45% of websites need less resources to load. Images take 341.4 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 18.7 kB

  • Original 23.8 kB
  • After minification 19.3 kB
  • After compression 5.1 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 4.4 kB, which is 19% 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 18.7 kB or 79% of the original size.

Image Optimization

-8%

Potential reduce by 26.7 kB

  • Original 341.4 kB
  • After minification 314.7 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. Historical Aerials images are well optimized though.

JavaScript Optimization

-11%

Potential reduce by 8.4 kB

  • Original 79.6 kB
  • After minification 79.5 kB
  • After compression 71.2 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 8.4 kB or 11% of the original size.

CSS Optimization

-37%

Potential reduce by 12.2 kB

  • Original 33.4 kB
  • After minification 33.4 kB
  • After compression 21.1 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. Historicalaerials.com needs all CSS files to be minified and compressed as it can save up to 12.2 kB or 37% of the original size.

Requests Breakdown

Number of requests can be reduced by 29 (78%)

Requests Now

37

After Optimization

8

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Historical Aerials. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

historicalaerials.com accessibility score

47

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

historicalaerials.com 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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

historicalaerials.com SEO score

83

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Historicalaerials.com 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 Historicalaerials.com 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 Historical Aerials. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: