Tools & Wizards About Us
decadevolcano.net screenshot

Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 53

    Accessibility

    Visual factors better than
    that of 22% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

decadevolcano.net

Fascination Volcano / Volcano Discovery - volcano photos and tours

Page Load Speed

2.3 sec in total

First Response

416 ms

Resources Loaded

1.5 sec

Page Rendered

389 ms

decadevolcano.net screenshot

About Website

Visit decadevolcano.net now to see the best up-to-date Decade Volcano content and also check out these interesting facts you probably never knew about decadevolcano.net

Information, photos, tours to active volcanoes worldwide. Etna volcano, Stromboli volcano, Santorini volcanic island, Methana, Hawaii volcanoes, volcanoes in Java, Indonesia

Visit decadevolcano.net

Key Findings

We analyzed Decadevolcano.net page load time and found that the first response time was 416 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

decadevolcano.net performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

92/100

10%

LCP (Largest Contentful Paint)

Value1.7 s

99/100

25%

SI (Speed Index)

Value2.7 s

96/100

10%

TBT (Total Blocking Time)

Value4,650 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.021

100/100

15%

TTI (Time to Interactive)

Value10.7 s

22/100

10%

Network Requests Diagram

decadevolcano.net

416 ms

styles.css

121 ms

feature.jpg

28 ms

earthquakes.volcanodiscovery.com

165 ms

logo_news.png

416 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 65% of them (36 requests) were addressed to the original Decadevolcano.net, 22% (12 requests) were made to Volcanoesandearthquakes.com and 5% (3 requests) were made to Volcanodiscovery.com. The less responsive or slowest element that took the longest time to load (934 ms) belongs to the original domain Decadevolcano.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 22.9 kB (5%)

Content Size

453.1 kB

After Optimization

430.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Decadevolcano.net main page is 453.1 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 226.0 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 18.1 kB

  • Original 23.0 kB
  • After minification 20.8 kB
  • After compression 4.9 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 18.1 kB or 79% of the original size.

Image Optimization

-2%

Potential reduce by 4.6 kB

  • Original 226.0 kB
  • After minification 221.5 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. Decade Volcano images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 0 B

  • Original 200.7 kB
  • After minification 200.7 kB
  • After compression 200.7 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

-5%

Potential reduce by 184 B

  • Original 3.4 kB
  • After minification 3.4 kB
  • After compression 3.2 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. Decadevolcano.net has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 5 (10%)

Requests Now

52

After Optimization

47

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Decade Volcano. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

decadevolcano.net

decadevolcano.net

416 ms

styles.css

styles.css

121 ms

feature.jpg

feature.jpg

28 ms

earthquakes.volcanodiscovery.com

earthquakes.volcanodiscovery.com

165 ms

logo_news.png

logo_news.png

416 ms

ertaale_e37081_s.jpg

ertaale_e37081_s.jpg

182 ms

hawaii_e7762_s.jpg

hawaii_e7762_s.jpg

319 ms

stromboli_e31385m_s.jpg

stromboli_e31385m_s.jpg

315 ms

hawaii_d21217_s.jpg

hawaii_d21217_s.jpg

317 ms

nyiragongo_d14894_s.jpg

nyiragongo_d14894_s.jpg

315 ms

stromboli_d17038_s.jpg

stromboli_d17038_s.jpg

313 ms

stromboli_e3867_s.jpg

stromboli_e3867_s.jpg

304 ms

etna_e4064a_s.jpg

etna_e4064a_s.jpg

424 ms

etna_composite_1006_s.jpg

etna_composite_1006_s.jpg

436 ms

nyiragongo_d8793a_s.jpg

nyiragongo_d8793a_s.jpg

438 ms

welirang_d9816a_s.jpg

welirang_d9816a_s.jpg

440 ms

merapi_d9480_s.jpg

merapi_d9480_s.jpg

447 ms

stromboli_d8018_s.jpg

stromboli_d8018_s.jpg

456 ms

merapi_d6204_s.jpg

merapi_d6204_s.jpg

548 ms

comp_haw_0306_s.jpg

comp_haw_0306_s.jpg

563 ms

nyiragongo_d2419_s.jpg

nyiragongo_d2419_s.jpg

562 ms

stromboli_d1496_s.jpg

stromboli_d1496_s.jpg

566 ms

santorini_53614_s.jpg

santorini_53614_s.jpg

576 ms

ind_2005_s.jpg

ind_2005_s.jpg

584 ms

stromboli_50004_s.jpg

stromboli_50004_s.jpg

675 ms

hawaii_49202_s.jpg

hawaii_49202_s.jpg

684 ms

Logo_VDT_02_8.GIF

Logo_VDT_02_8.GIF

686 ms

hawaii_37508a_s.jpg

hawaii_37508a_s.jpg

695 ms

logo.jpg

logo.jpg

705 ms

de_s.jpg

de_s.jpg

713 ms

flag_dk_f.gif

flag_dk_f.gif

797 ms

etna_2806_8_s.jpg

etna_2806_8_s.jpg

804 ms

thm_etna_29111.jpg

thm_etna_29111.jpg

810 ms

santorini_8446_m.jpg

santorini_8446_m.jpg

824 ms

pali181200_08.jpg

pali181200_08.jpg

834 ms

lengai_35409_s.jpg

lengai_35409_s.jpg

841 ms

hekla_8931_s.jpg

hekla_8931_s.jpg

921 ms

stromboli_36122_s.jpg

stromboli_36122_s.jpg

926 ms

santorini_20913_s.jpg

santorini_20913_s.jpg

934 ms

leaflet_02.css

leaflet_02.css

37 ms

volcanoInfo0.js

volcanoInfo0.js

63 ms

zoom_in.png

zoom_in.png

104 ms

btn_donate_SM.gif

btn_donate_SM.gif

108 ms

volcano.png

volcano.png

110 ms

quake.png

quake.png

126 ms

langswitch.png

langswitch.png

111 ms

volcano_icon_1.png

volcano_icon_1.png

111 ms

volcano_icon_2.png

volcano_icon_2.png

112 ms

volcano_icon_3.png

volcano_icon_3.png

120 ms

volcano_icon_4.png

volcano_icon_4.png

122 ms

volcano_icon_0.png

volcano_icon_0.png

119 ms

searchresults.html

searchresults.html

18 ms

map_53.js

map_53.js

64 ms

eq-table.tbl

eq-table.tbl

151 ms

news.html

news.html

22 ms

Accessibility Review

decadevolcano.net accessibility score

53

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

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

Best Practices

decadevolcano.net best practices score

58

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

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

decadevolcano.net 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

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    WINDOWS-1252

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Decadevolcano.net 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 Decadevolcano.net main page’s claimed encoding is windows-1252. 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

decadevolcano.net

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