Report Summary

  • 76

    Performance

    Renders faster than
    84% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

csr-marine.com

CSR GeoSurveys Ltd., Engineering Environmental Geophysics, CSR, Geotechnical, Seismic, Hydroelectric, Hydrographic

Page Load Speed

1.7 sec in total

First Response

244 ms

Resources Loaded

1.1 sec

Page Rendered

373 ms

csr-marine.com screenshot

About Website

Welcome to csr-marine.com homepage info - get ready to check CSR Marine best content right away, or after learning these important things about csr-marine.com

Canadian Seabed Research Ltd. was founded by Glen Gilbert in 1985. Since then, CSR has grown into one of the leading Geophysical Survey companies in Canada. CSR has developed a solid reputation for ac...

Visit csr-marine.com

Key Findings

We analyzed Csr-marine.com page load time and found that the first response time was 244 ms and then it took 1.5 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

csr-marine.com performance score

76

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

50/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

78/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value10.2 s

25/100

10%

Network Requests Diagram

csrgeosurveys.com

244 ms

bootstrap.min.css

79 ms

owl.carousel.css

190 ms

owl.theme.default.min.css

149 ms

css

31 ms

Our browser made a total of 61 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Csr-marine.com, 21% (13 requests) were made to Csrgeosurveys.com and 11% (7 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (410 ms) relates to the external source Immediac.blob.core.windows.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 128.0 kB (4%)

Content Size

2.9 MB

After Optimization

2.7 MB

In fact, the total size of Csr-marine.com main page is 2.9 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. 55% of websites need less resources to load. Images take 2.7 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 43.9 kB

  • Original 52.1 kB
  • After minification 45.3 kB
  • After compression 8.2 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 6.8 kB, which is 13% 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 43.9 kB or 84% of the original size.

Image Optimization

-2%

Potential reduce by 58.2 kB

  • Original 2.7 MB
  • After minification 2.6 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. CSR Marine images are well optimized though.

JavaScript Optimization

-23%

Potential reduce by 16.4 kB

  • Original 72.3 kB
  • After minification 72.2 kB
  • After compression 55.9 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 16.4 kB or 23% of the original size.

CSS Optimization

-21%

Potential reduce by 9.5 kB

  • Original 45.3 kB
  • After minification 45.3 kB
  • After compression 35.8 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. Csr-marine.com needs all CSS files to be minified and compressed as it can save up to 9.5 kB or 21% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (26%)

Requests Now

50

After Optimization

37

The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CSR Marine. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

csr-marine.com accessibility score

75

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA input fields do not have accessible names

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

csr-marine.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

csr-marine.com SEO score

75

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

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Csr-marine.com 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 Csr-marine.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 description is not detected on the main page of CSR Marine. 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: