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catastrophemap.org screenshot

Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 49

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

catastrophemap.org

catastrophemap.org

Page Load Speed

315 ms in total

First Response

90 ms

Resources Loaded

172 ms

Page Rendered

53 ms

catastrophemap.org screenshot

About Website

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

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Key Findings

We analyzed Catastrophemap.org page load time and found that the first response time was 90 ms and then it took 225 ms to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

catastrophemap.org performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

26/100

10%

LCP (Largest Contentful Paint)

Value12.0 s

0/100

25%

SI (Speed Index)

Value5.9 s

47/100

10%

TBT (Total Blocking Time)

Value830 ms

35/100

30%

CLS (Cumulative Layout Shift)

Value0.018

100/100

15%

TTI (Time to Interactive)

Value14.4 s

9/100

10%

Network Requests Diagram

catastrophemap.org

90 ms

catastrophemap.org

83 ms

Our browser made a total of 2 requests to load all elements on the main page. We found that all of those requests were addressed to Catastrophemap.org and no external sources were called. The less responsive or slowest element that took the longest time to load (90 ms) belongs to the original domain Catastrophemap.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 kB (9%)

Content Size

13.1 kB

After Optimization

11.8 kB

  • HTML
  • Images

In fact, the total size of Catastrophemap.org main page is 13.1 kB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. Images take 11.4 kB which makes up the majority of the site volume.

HTML Optimization

-59%

Potential reduce by 993 B

  • Original 1.7 kB
  • After minification 1.7 kB
  • After compression 684 B

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 993 B or 59% of the original size.

Image Optimization

-2%

Potential reduce by 239 B

  • Original 11.4 kB
  • After minification 11.1 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. Catastrophemap images are well optimized though.

Requests Breakdown

We found no issues to fix!

Requests Now

0

After Optimization

0

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Network Requests Diagram

catastrophemap.org

catastrophemap.org

90 ms

catastrophemap.org

catastrophemap.org

83 ms

Accessibility Review

catastrophemap.org accessibility score

49

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

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

Document doesn't have a <title> element

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

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

catastrophemap.org best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

catastrophemap.org SEO score

69

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

Document doesn't have a <title> element

High

Image elements do not have [alt] attributes

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

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

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Catastrophemap.org can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Catastrophemap.org main page’s claimed encoding is gb2312. 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

catastrophemap.org

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