Tools & Wizards About Us

Report Summary

  • 78

    Performance

    Renders faster than
    85% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

northamericandiatomsymposium.org

NADS

Page Load Speed

344 ms in total

First Response

13 ms

Resources Loaded

92 ms

Page Rendered

239 ms

About Website

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North American Diatom Symposium

Visit northamericandiatomsymposium.org

Key Findings

We analyzed Northamericandiatomsymposium.org page load time and found that the first response time was 13 ms and then it took 331 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

northamericandiatomsymposium.org performance score

78

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value0.8 s

100/100

10%

TBT (Total Blocking Time)

Value70 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.0 s

100/100

10%

Network Requests Diagram

northamericandiatomsymposium.org

13 ms

default.css

18 ms

home1.jpg

26 ms

home2.jpg

19 ms

SarahS.jpg

18 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that all of those requests were addressed to Northamericandiatomsymposium.org and no external sources were called. The less responsive or slowest element that took the longest time to load (64 ms) belongs to the original domain Northamericandiatomsymposium.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 13.9 kB (1%)

Content Size

1.0 MB

After Optimization

997.5 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Northamericandiatomsymposium.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. 25% of websites need less resources to load. Images take 997.9 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 8.3 kB

  • Original 10.7 kB
  • After minification 7.9 kB
  • After compression 2.4 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. This page needs HTML code to be minified as it can gain 2.8 kB, which is 26% 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 8.3 kB or 77% of the original size.

Image Optimization

-0%

Potential reduce by 3.5 kB

  • Original 997.9 kB
  • After minification 994.4 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. Northamericandiatomsymposium images are well optimized though.

CSS Optimization

-74%

Potential reduce by 2.1 kB

  • Original 2.9 kB
  • After minification 2.0 kB
  • After compression 752 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. Northamericandiatomsymposium.org needs all CSS files to be minified and compressed as it can save up to 2.1 kB or 74% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

18

After Optimization

18

  • Images
  • CSS

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Northamericandiatomsymposium. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

northamericandiatomsymposium.org accessibility score

82

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.

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

Links do not have a discernible name

Best Practices

northamericandiatomsymposium.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

northamericandiatomsymposium.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 Northamericandiatomsymposium.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 Northamericandiatomsymposium.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 Northamericandiatomsymposium. 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: