Tools & Wizards About Us
forums.scubadiving.com screenshot

Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

forums.scubadiving.com

Scuba Diving Gear Reviews, Certifications & Travel | Scuba Diving magazine

Page Load Speed

2.4 sec in total

First Response

158 ms

Resources Loaded

2.1 sec

Page Rendered

165 ms

forums.scubadiving.com screenshot

About Website

Visit forums.scubadiving.com now to see the best up-to-date Forums Scuba Diving content for United States and also check out these interesting facts you probably never knew about forums.scubadiving.com

Scuba Diving is your one-stop resource for information on how to scuba dive, scuba gear, dive travel, dive photos, videos, training, and more.

Visit forums.scubadiving.com

Key Findings

We analyzed Forums.scubadiving.com page load time and found that the first response time was 158 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

forums.scubadiving.com performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value14.9 s

0/100

25%

SI (Speed Index)

Value12.0 s

4/100

10%

TBT (Total Blocking Time)

Value1,980 ms

8/100

30%

CLS (Cumulative Layout Shift)

Value0.273

45/100

15%

TTI (Time to Interactive)

Value22.4 s

1/100

10%

Network Requests Diagram

forums.scubadiving.com

158 ms

yuiloader-dom-event.js

17 ms

connection-min.js

22 ms

vbulletin-core.js

23 ms

main-rollup.css

29 ms

Our browser made a total of 114 requests to load all elements on the main page. We found that 32% of them (36 requests) were addressed to the original Forums.scubadiving.com, 10% (11 requests) were made to Ums.adtechus.com and 6% (7 requests) were made to Dsum.casalemedia.com. The less responsive or slowest element that took the longest time to load (864 ms) relates to the external source Image2.pubmatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 377.6 kB (59%)

Content Size

645.2 kB

After Optimization

267.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Forums.scubadiving.com main page is 645.2 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. Javascripts take 370.7 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 44.0 kB

  • Original 57.3 kB
  • After minification 53.2 kB
  • After compression 13.3 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 44.0 kB or 77% of the original size.

Image Optimization

-3%

Potential reduce by 3.2 kB

  • Original 122.6 kB
  • After minification 119.4 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. Forums Scuba Diving images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 253.1 kB

  • Original 370.7 kB
  • After minification 361.1 kB
  • After compression 117.7 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 253.1 kB or 68% of the original size.

CSS Optimization

-82%

Potential reduce by 77.3 kB

  • Original 94.6 kB
  • After minification 91.4 kB
  • After compression 17.3 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. Forums.scubadiving.com needs all CSS files to be minified and compressed as it can save up to 77.3 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 79 (77%)

Requests Now

103

After Optimization

24

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 103 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Forums Scuba Diving. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

forums.scubadiving.com

forums.scubadiving.com

158 ms

yuiloader-dom-event.js

yuiloader-dom-event.js

17 ms

connection-min.js

connection-min.js

22 ms

vbulletin-core.js

vbulletin-core.js

23 ms

main-rollup.css

main-rollup.css

29 ms

divertodiver.css

divertodiver.css

27 ms

double_click.js

double_click.js

26 ms

appbanner.css

appbanner.css

32 ms

appbanner.js

appbanner.js

34 ms

vbulletin_read_marker.js

vbulletin_read_marker.js

36 ms

forumhome-rollup.css

forumhome-rollup.css

33 ms

sidebar.css

sidebar.css

32 ms

widgets.css

widgets.css

42 ms

tagcloud.css

tagcloud.css

47 ms

vbulletin-sidebar.js

vbulletin-sidebar.js

48 ms

vbulletin_md5.js

vbulletin_md5.js

48 ms

forum;pos=top;sz=728x90;kw=;dcopt=ist;device=;remnant=yes;id=;tile=1;ord=*random%20[%5E]%20number*

forum;pos=top;sz=728x90;kw=;dcopt=ist;device=;remnant=yes;id=;tile=1;ord=*random%20[%5E]%20number*

108 ms

vbulletin_facebook.js

vbulletin_facebook.js

45 ms

forum;pos=bottom;sz=728x90;kw=;device=;remnant=yes;id=;tile=4;ord=*random%20number*

forum;pos=bottom;sz=728x90;kw=;device=;remnant=yes;id=;tile=4;ord=*random%20number*

88 ms

s_code.js

s_code.js

49 ms

animation-min.js

animation-min.js

11 ms

scuba_1.png

scuba_1.png

17 ms

facebook_login.gif

facebook_login.gif

7 ms

search.png

search.png

4 ms

navbit-home.png

navbit-home.png

7 ms

collapse_40b.png

collapse_40b.png

6 ms

forum_old-48.png

forum_old-48.png

8 ms

lastpost-right.png

lastpost-right.png

5 ms

users_online.png

users_online.png

10 ms

forum_stats.png

forum_stats.png

10 ms

legend.png

legend.png

7 ms

forum_new-16.png

forum_new-16.png

8 ms

forum_old-16.png

forum_old-16.png

7 ms

category-16.png

category-16.png

10 ms

forum_link-16.png

forum_link-16.png

12 ms

tab-collapsed.png

tab-collapsed.png

11 ms

widget-forum.png

widget-forum.png

11 ms

unknown.gif

unknown.gif

12 ms

cron.php

cron.php

90 ms

moatad.js

moatad.js

144 ms

lidar.js

lidar.js

10 ms

addyn%7C3.0%7C9880.1%7C3402405%7C0%7C225%7CADTECH;cfp=1;rndc=1456855325;loc=100;target=_blank;misc=[TIMESTAMP];rdclick=

addyn%7C3.0%7C9880.1%7C3402405%7C0%7C225%7CADTECH;cfp=1;rndc=1456855325;loc=100;target=_blank;misc=[TIMESTAMP];rdclick=

518 ms

adlink%7C9880%7C3402405%7C0%7C225%7CAdId%3D6191280%3BBnId%3D1%3Bitime%3D855325742%3Blink%3D;ord=123625025

adlink%7C9880%7C3402405%7C0%7C225%7CAdId%3D6191280%3BBnId%3D1%3Bitime%3D855325742%3Blink%3D;ord=123625025

45 ms

generic

generic

17 ms

pixel

pixel

39 ms

mapuser

mapuser

7 ms

mapuser

mapuser

7 ms

generic

generic

5 ms

mapuser

mapuser

7 ms

providerid=1037;userid=5733e565-5f63-4f8d-a378-eb0c13386693

providerid=1037;userid=5733e565-5f63-4f8d-a378-eb0c13386693

6 ms

mapuser

mapuser

24 ms

mapuser

mapuser

13 ms

showad.js

showad.js

60 ms

mapuser

mapuser

6 ms

mapuser

mapuser

5 ms

mapuser

mapuser

4 ms

showad.js

showad.js

50 ms

AdServerServlet

AdServerServlet

51 ms

PugMaster

PugMaster

47 ms

scubadiving;pos=top;sz=728x90;ord=123625025

scubadiving;pos=top;sz=728x90;ord=123625025

48 ms

p-P7x87XHnVfbWr.gif

p-P7x87XHnVfbWr.gif

17 ms

Pug

Pug

54 ms

pixel

pixel

167 ms

4612498011683862949

4612498011683862949

44 ms

usermatch

usermatch

47 ms

pixel.htm

pixel.htm

48 ms

demconf.jpg

demconf.jpg

42 ms

Pug

Pug

63 ms

Pug

Pug

51 ms

Pug

Pug

50 ms

usermatch

usermatch

19 ms

Pug

Pug

56 ms

ddc.htm

ddc.htm

37 ms

forum;pos=right1;sz=300x250;kw=,landing;topic=scubadiving;tile=1;ord=123625025

forum;pos=right1;sz=300x250;kw=,landing;topic=scubadiving;tile=1;ord=123625025

87 ms

gr

gr

40 ms

casale

casale

34 ms

casale

casale

50 ms

mapuser

mapuser

36 ms

pixel

pixel

80 ms

rtset

rtset

70 ms

rum

rum

53 ms

u.php

u.php

80 ms

93 ms

Pug

Pug

141 ms

mapuser

mapuser

56 ms

pixel

pixel

80 ms

crum

crum

63 ms

rum

rum

117 ms

pixel

pixel

158 ms

pixel.gif

pixel.gif

109 ms

merge

merge

62 ms

crum

crum

61 ms

bd

bd

104 ms

crum

crum

63 ms

tap.php

tap.php

75 ms

xrefid.xgi

xrefid.xgi

45 ms

rum

rum

64 ms

sync

sync

45 ms

crum

crum

71 ms

15487995537208680551

15487995537208680551

69 ms

Pug

Pug

864 ms

lr.gif

lr.gif

155 ms

bd

bd

61 ms

NAX6907592351080259241

NAX6907592351080259241

63 ms

all.js

all.js

64 ms

18284408876452215566

18284408876452215566

114 ms

sd

sd

98 ms

m

m

68 ms

44 ms

crum

crum

12 ms

xd_arbiter.php

xd_arbiter.php

35 ms

xd_arbiter.php

xd_arbiter.php

65 ms

s45631341203115

s45631341203115

45 ms

xd_arbiter.php

xd_arbiter.php

20 ms

Accessibility Review

forums.scubadiving.com accessibility score

83

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

forums.scubadiving.com best practices score

67

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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

forums.scubadiving.com SEO score

77

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Forums.scubadiving.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 Forums.scubadiving.com 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

forums.scubadiving.com

Open Graph description is not detected on the main page of Forums Scuba Diving. 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: