Tools & Wizards About Us
seascansurvey.com screenshot

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

seascansurvey.com

Sea Scan Survey | Survey, Mapping, Remote Operated Vehicle, Scanning, Diving, Search, Recovery

Page Load Speed

6 sec in total

First Response

506 ms

Resources Loaded

5.3 sec

Page Rendered

238 ms

seascansurvey.com screenshot

About Website

Welcome to seascansurvey.com homepage info - get ready to check Sea Scan Survey best content right away, or after learning these important things about seascansurvey.com

Sea Scan Survey | Professional technical divers specialising in Side Scan Sonar Underwater Surveying, Magnetic & Bathymetric Seafloor Mapping, Vibracore Scanning & Core Tests, Seabed Sampling & Filmin...

Visit seascansurvey.com

Key Findings

We analyzed Seascansurvey.com page load time and found that the first response time was 506 ms and then it took 5.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

seascansurvey.com performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value19.6 s

0/100

25%

SI (Speed Index)

Value12.1 s

3/100

10%

TBT (Total Blocking Time)

Value2,260 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value18.8 s

3/100

10%

Network Requests Diagram

seascansurvey.com

506 ms

seascansurvey.com

942 ms

xr_fonts.css

233 ms

xr_main.css

465 ms

custom_styles.css

697 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 74% of them (52 requests) were addressed to the original Seascansurvey.com, 9% (6 requests) were made to Youtube-nocookie.com and 7% (5 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2.4 sec) belongs to the original domain Seascansurvey.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 156.4 kB (7%)

Content Size

2.4 MB

After Optimization

2.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Seascansurvey.com main page is 2.4 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 2.0 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 25.2 kB

  • Original 31.7 kB
  • After minification 31.1 kB
  • After compression 6.6 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 25.2 kB or 79% of the original size.

Image Optimization

-6%

Potential reduce by 124.7 kB

  • Original 2.0 MB
  • After minification 1.9 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. Sea Scan Survey images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 5.3 kB

  • Original 301.2 kB
  • After minification 301.2 kB
  • After compression 295.9 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. This website has mostly compressed JavaScripts.

CSS Optimization

-2%

Potential reduce by 1.3 kB

  • Original 71.6 kB
  • After minification 71.6 kB
  • After compression 70.4 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. Seascansurvey.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 24 (38%)

Requests Now

63

After Optimization

39

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sea Scan Survey. 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 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

seascansurvey.com

seascansurvey.com

506 ms

seascansurvey.com

seascansurvey.com

942 ms

xr_fonts.css

xr_fonts.css

233 ms

xr_main.css

xr_main.css

465 ms

custom_styles.css

custom_styles.css

697 ms

xr_text.css

xr_text.css

698 ms

roe.js

roe.js

931 ms

replaceMobileFonts.js

replaceMobileFonts.js

702 ms

prs4.js

prs4.js

702 ms

jquery.js

jquery.js

938 ms

ani.css

ani.css

930 ms

jquery.js

jquery.js

1163 ms

amazingslider.js

amazingslider.js

1400 ms

amazingslider-1.css

amazingslider-1.css

962 ms

initslider-1.js

initslider-1.js

1177 ms

css

css

25 ms

css

css

38 ms

919.png

919.png

1908 ms

main-anim1.jpg

main-anim1.jpg

1445 ms

main-anim2.jpg

main-anim2.jpg

1443 ms

main-anim3.jpg

main-anim3.jpg

1468 ms

295.jpg

295.jpg

449 ms

640.png

640.png

450 ms

641.png

641.png

666 ms

642.png

642.png

666 ms

1929.png

1929.png

765 ms

seabed-magnetic-surveys-icon.jpg

seabed-magnetic-surveys-icon.jpg

765 ms

bathymetric-3d-seafloor-mapping-icon.jpg

bathymetric-3d-seafloor-mapping-icon.jpg

1273 ms

354.png

354.png

1085 ms

side-scan-sonar-seafloor-mapping-icon.jpg

side-scan-sonar-seafloor-mapping-icon.jpg

1273 ms

vibracore-scanning-core-tests-icon.jpg

vibracore-scanning-core-tests-icon.jpg

1468 ms

sea-scan-survey-logo.jpg

sea-scan-survey-logo.jpg

1468 ms

296.png

296.png

1674 ms

remote-operated-vehicle-rov-services-icon.jpg

remote-operated-vehicle-rov-services-icon.jpg

1675 ms

2183.png

2183.png

1675 ms

2184.png

2184.png

1677 ms

2185.png

2185.png

1676 ms

remote-operated-vehicle-rov-services-icon1.jpg

remote-operated-vehicle-rov-services-icon1.jpg

1906 ms

jazz-marine-services.jpg

jazz-marine-services.jpg

1907 ms

mmdd.jpg

mmdd.jpg

1907 ms

2169.png

2169.png

1908 ms

2175.png

2175.png

1908 ms

2170.png

2170.png

2136 ms

2176.png

2176.png

2137 ms

2171.png

2171.png

2138 ms

2177.png

2177.png

2139 ms

2172.png

2172.png

2139 ms

2178.png

2178.png

2138 ms

2173.png

2173.png

2367 ms

2179.png

2179.png

2369 ms

2174.png

2174.png

2370 ms

2180.png

2180.png

2372 ms

y64C7_xhqcg

y64C7_xhqcg

177 ms

3yqe9qNeNWc

3yqe9qNeNWc

647 ms

playvideo-64-64-0.png

playvideo-64-64-0.png

2301 ms

font

font

15 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVQUwaEQXjM.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVQUwaEQXjM.woff

29 ms

memQYaGs126MiZpBA-UFUIcVXSCEkx2cmqvXlWq8tWZ0Pw86hd0Rk8ZkWVAexoMUdjFnmg.woff

memQYaGs126MiZpBA-UFUIcVXSCEkx2cmqvXlWq8tWZ0Pw86hd0Rk8ZkWVAexoMUdjFnmg.woff

30 ms

www-player.css

www-player.css

15 ms

www-embed-player.js

www-embed-player.js

41 ms

base.js

base.js

74 ms

XaraWDGeneratedHTMLfont1.woff

XaraWDGeneratedHTMLfont1.woff

1927 ms

Hg8RJ6IYDEt2XfeS9TTatHSj5NgA1bkUUg8jx44YVvw.js

Hg8RJ6IYDEt2XfeS9TTatHSj5NgA1bkUUg8jx44YVvw.js

236 ms

embed.js

embed.js

184 ms

KFOlCnqEu92Fr1MmEU9fBBc-AMP6lQ.woff

KFOlCnqEu92Fr1MmEU9fBBc-AMP6lQ.woff

18 ms

KFOmCnqEu92Fr1Mu4mxMKTU1Kg.woff

KFOmCnqEu92Fr1Mu4mxMKTU1Kg.woff

18 ms

Create

Create

317 ms

Create

Create

421 ms

GenerateIT

GenerateIT

20 ms

GenerateIT

GenerateIT

17 ms

Accessibility Review

seascansurvey.com accessibility score

75

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

seascansurvey.com best practices score

75

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

seascansurvey.com SEO score

83

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Content Best Practices

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

Impact

Issue

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 Seascansurvey.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 Seascansurvey.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

seascansurvey.com

Open Graph description is not detected on the main page of Sea Scan Survey. 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: