Tools & Wizards About Us
sierraclub.org screenshot

Report Summary

  • 5

    Performance

    Renders faster than
    21% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 46% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

sierraclub.org

Earth Day 2024 | Sierra Club

Page Load Speed

2 sec in total

First Response

177 ms

Resources Loaded

1.6 sec

Page Rendered

216 ms

sierraclub.org screenshot

About Website

Visit sierraclub.org now to see the best up-to-date Sierra Club content for United States and also check out these interesting facts you probably never knew about sierraclub.org

Explore, enjoy and protect the planet.

Visit sierraclub.org

Key Findings

We analyzed Sierraclub.org page load time and found that the first response time was 177 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

sierraclub.org performance score

5

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.1 s

0/100

10%

LCP (Largest Contentful Paint)

Value29.1 s

0/100

25%

SI (Speed Index)

Value21.6 s

0/100

10%

TBT (Total Blocking Time)

Value17,280 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.348

32/100

15%

TTI (Time to Interactive)

Value47.2 s

0/100

10%

Network Requests Diagram

sierraclub.org

177 ms

css_kShW4RPmRstZ3SpIC-ZvVGNFVAi0WEMuCnI0ZkYIaFw.css

74 ms

css_WgERrdf4mVkBsCWTjBwVISK12Pmu1yTB2W9wddh2E7s.css

135 ms

css_jQKQHSbwvkQrUBZ_8O1deYQpI5bw6DpPKe52OFSQ-10.css

139 ms

css_CmxBf6BR2cJ4vIkQxmQqufZx0AHl5I-DSB8AdsZQR-I.css

147 ms

Our browser made a total of 105 requests to load all elements on the main page. We found that 45% of them (47 requests) were addressed to the original Sierraclub.org, 15% (16 requests) were made to Maps.googleapis.com and 7% (7 requests) were made to Use.typekit.com. The less responsive or slowest element that took the longest time to load (535 ms) belongs to the original domain Sierraclub.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.7 MB (57%)

Content Size

3.0 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sierraclub.org main page is 3.0 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. 70% of websites need less resources to load. Javascripts take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 153.2 kB

  • Original 199.0 kB
  • After minification 199.0 kB
  • After compression 45.9 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 153.2 kB or 77% of the original size.

Image Optimization

-1%

Potential reduce by 8.7 kB

  • Original 629.9 kB
  • After minification 621.2 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. Sierra Club images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 1.3 MB

  • Original 1.9 MB
  • After minification 1.8 MB
  • After compression 574.4 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 1.3 MB or 69% of the original size.

CSS Optimization

-83%

Potential reduce by 286.9 kB

  • Original 345.8 kB
  • After minification 323.7 kB
  • After compression 58.8 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. Sierraclub.org needs all CSS files to be minified and compressed as it can save up to 286.9 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 58 (63%)

Requests Now

92

After Optimization

34

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 92 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sierra Club. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 38 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sierraclub.org

sierraclub.org

177 ms

css_kShW4RPmRstZ3SpIC-ZvVGNFVAi0WEMuCnI0ZkYIaFw.css

css_kShW4RPmRstZ3SpIC-ZvVGNFVAi0WEMuCnI0ZkYIaFw.css

74 ms

css_WgERrdf4mVkBsCWTjBwVISK12Pmu1yTB2W9wddh2E7s.css

css_WgERrdf4mVkBsCWTjBwVISK12Pmu1yTB2W9wddh2E7s.css

135 ms

css_jQKQHSbwvkQrUBZ_8O1deYQpI5bw6DpPKe52OFSQ-10.css

css_jQKQHSbwvkQrUBZ_8O1deYQpI5bw6DpPKe52OFSQ-10.css

139 ms

css_CmxBf6BR2cJ4vIkQxmQqufZx0AHl5I-DSB8AdsZQR-I.css

css_CmxBf6BR2cJ4vIkQxmQqufZx0AHl5I-DSB8AdsZQR-I.css

147 ms

css_NrZ8XqsQinoUp3AwYVqHasi9EHUrFliI7QMopC5zVOE.css

css_NrZ8XqsQinoUp3AwYVqHasi9EHUrFliI7QMopC5zVOE.css

219 ms

css_WX-4pQSD6o0xkY_-RzJXH1I0ojDStkSvL9U2iU51IuE.css

css_WX-4pQSD6o0xkY_-RzJXH1I0ojDStkSvL9U2iU51IuE.css

152 ms

jquery.min.js

jquery.min.js

237 ms

jquery.once.js

jquery.once.js

198 ms

drupal.js

drupal.js

335 ms

201252808.js

201252808.js

118 ms

jquery.flexslider-min.js

jquery.flexslider-min.js

216 ms

subscription.js

subscription.js

252 ms

sc-counters-default.js

sc-counters-default.js

274 ms

lightbox.js

lightbox.js

288 ms

geoip2.js

geoip2.js

10 ms

js

js

49 ms

sew5odh.js

sew5odh.js

128 ms

script.js

script.js

287 ms

yepnope.1.5.4-min.js

yepnope.1.5.4-min.js

290 ms

extended-script.js

extended-script.js

291 ms

js_injector_1.js

js_injector_1.js

390 ms

js_injector_5.js

js_injector_5.js

391 ms

js_injector_6.js

js_injector_6.js

390 ms

addthis_widget.js

addthis_widget.js

11 ms

js_injector_19.js

js_injector_19.js

388 ms

event

event

19 ms

sierraclub.org

sierraclub.org

140 ms

logo.png

logo.png

97 ms

homepage_footer_cc.png

homepage_footer_cc.png

96 ms

dot-org-bynumbers-production_230.jpg

dot-org-bynumbers-production_230.jpg

197 ms

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98 ms

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198 ms

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97 ms

wtosolarshoe.jpg

wtosolarshoe.jpg

197 ms

Logging_Rastan.jpg

Logging_Rastan.jpg

196 ms

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Eye-of-Newt_v2_TN.jpg

219 ms

SC-General-BlogPost-1200x628-01.png

SC-General-BlogPost-1200x628-01.png

298 ms

MichaelBrune.jpg

MichaelBrune.jpg

298 ms

gaa.png

gaa.png

94 ms

gtm.js

gtm.js

34 ms

all.js

all.js

35 ms

header-bg-gradient.png

header-bg-gradient.png

288 ms

bg-search-box.png

bg-search-box.png

288 ms

search-field.png

search-field.png

289 ms

search-button.png

search-button.png

330 ms

header-bg-grey-dashes.png

header-bg-grey-dashes.png

331 ms

header-bg-grey-dotted-block.png

header-bg-grey-dotted-block.png

330 ms

divider-green-dashes.png

divider-green-dashes.png

331 ms

counter-bg.png

counter-bg.png

332 ms

sierraclub-logo-footer.png

sierraclub-logo-footer.png

328 ms

21F7C5_18_0.woff

21F7C5_18_0.woff

503 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

535 ms

analytics.js

analytics.js

9 ms

collect.js

collect.js

26 ms

hotjar-152373.js

hotjar-152373.js

112 ms

261 ms

layers.3643cb2e25fb91c29386.js

layers.3643cb2e25fb91c29386.js

16 ms

xd_arbiter.php

xd_arbiter.php

82 ms

xd_arbiter.php

xd_arbiter.php

181 ms

collect

collect

66 ms

collect

collect

235 ms

track_page_view

track_page_view

170 ms

collect

collect

108 ms

modules-1f5c71aea63f8df71401422ed80fbe5f.js

modules-1f5c71aea63f8df71401422ed80fbe5f.js

149 ms

quant.js

quant.js

110 ms

_Incapsula_Resource

_Incapsula_Resource

196 ms

me

me

175 ms

300lo.json

300lo.json

84 ms

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55 ms

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93 ms

VmGQLCoWvmwBbjWfWmSil_ov2bWYq7gRdbt7PQhZohCffJLbMUMdeMJ6Mk6fw6NuSh90iY83ZAlTifoRdhXtfb.woff

VmGQLCoWvmwBbjWfWmSil_ov2bWYq7gRdbt7PQhZohCffJLbMUMdeMJ6Mk6fw6NuSh90iY83ZAlTifoRdhXtfb.woff

126 ms

AKQR_q4WJP2wYfRdoKBY8UsR0_EC27yivdujdHzq8HMffwVMggMdeMJ6Mk6fw6NuSh90iY83ZAlTifoRdhXtgb.woff

AKQR_q4WJP2wYfRdoKBY8UsR0_EC27yivdujdHzq8HMffwVMggMdeMJ6Mk6fw6NuSh90iY83ZAlTifoRdhXtgb.woff

154 ms

RfKuGlx3ycbLgaEVartiC7V3fVr3s2oo3M1Rr7KX_uIffVruggMdeMJ6Mk6fw6NuSh90iY83ZAlTifoRdhXtg3.woff

RfKuGlx3ycbLgaEVartiC7V3fVr3s2oo3M1Rr7KX_uIffVruggMdeMJ6Mk6fw6NuSh90iY83ZAlTifoRdhXtg3.woff

201 ms

sh.7c7179124ea24ac6ba46caac.html

sh.7c7179124ea24ac6ba46caac.html

40 ms

pixel;r=820534123;a=p-XSX9bSUuWEPwW;labels=_fp.event.Sierra%20Club%20DotOrg;fpan=1;fpa=P0-1237467018-1456751743116;ns=0;ce=1;cm=;je=0;sr=1024x768x32;enc=n;dst=0;et=1456751743115;tzo=-180;ref=;url=http%3A%2F%2Fsierraclub.org%2F;ogl=type.website%2Csite_name.Sierra%20Club%2Curl.http%3A%2F%2Fwww%252Esierraclub%252Eorg%2F%2Ctitle.Sierra%20Club%20Home%20Page%3A%20Explore%252C%20Enjoy%20and%20Protect%20the%20Planet%2Cdescription.Explore%252C%20enjoy%20and%20protect%20the%20planet%252E%2Cimage.http%3A%2F%2Fwww%252Esierraclub%252Eorg%2Fsites%2Fwww%252Esierraclub%252Eorg%2Ffiles%2Fstyles%2Fhomepage%2Fpublic%2F%2Cimage%3Asecure_url.https%3A%2F%2Fwww%252Esierraclub%252Eorg%2Fsites%2Fwww%252Esierraclub%252Eorg%2Ffiles%2Fstyles%2Fhomepage%2Fpublic%2Cimage%3Atype.image%2Fpng%2Cimage%3Awidth.1072%2Cimage%3Aheight.561

pixel;r=820534123;a=p-XSX9bSUuWEPwW;labels=_fp.event.Sierra%20Club%20DotOrg;fpan=1;fpa=P0-1237467018-1456751743116;ns=0;ce=1;cm=;je=0;sr=1024x768x32;enc=n;dst=0;et=1456751743115;tzo=-180;ref=;url=http%3A%2F%2Fsierraclub.org%2F;ogl=type.website%2Csite_name.Sierra%20Club%2Curl.http%3A%2F%2Fwww%252Esierraclub%252Eorg%2F%2Ctitle.Sierra%20Club%20Home%20Page%3A%20Explore%252C%20Enjoy%20and%20Protect%20the%20Planet%2Cdescription.Explore%252C%20enjoy%20and%20protect%20the%20planet%252E%2Cimage.http%3A%2F%2Fwww%252Esierraclub%252Eorg%2Fsites%2Fwww%252Esierraclub%252Eorg%2Ffiles%2Fstyles%2Fhomepage%2Fpublic%2F%2Cimage%3Asecure_url.https%3A%2F%2Fwww%252Esierraclub%252Eorg%2Fsites%2Fwww%252Esierraclub%252Eorg%2Ffiles%2Fstyles%2Fhomepage%2Fpublic%2Cimage%3Atype.image%2Fpng%2Cimage%3Awidth.1072%2Cimage%3Aheight.561

30 ms

common.js

common.js

27 ms

map.js

map.js

37 ms

_Incapsula_Resource

_Incapsula_Resource

79 ms

xd_arbiter.php

xd_arbiter.php

16 ms

util.js

util.js

33 ms

onion.js

onion.js

33 ms

ViewportInfoService.GetViewportInfo

ViewportInfoService.GetViewportInfo

39 ms

stats.js

stats.js

36 ms

controls.js

controls.js

35 ms

p.gif

p.gif

149 ms

visit-data

visit-data

250 ms

transparent.png

transparent.png

54 ms

css

css

38 ms

vt

vt

30 ms

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22 ms

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29 ms

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5 ms

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12 ms

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12 ms

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12 ms

AuthenticationService.Authenticate

AuthenticationService.Authenticate

17 ms

Accessibility Review

sierraclub.org accessibility score

78

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 progressbar elements do not have accessible names.

High

ARIA IDs are not unique

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

Buttons do not have an accessible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

High

Heading elements are not in a sequentially-descending order

High

Some elements have a [tabindex] value greater than 0

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

sierraclub.org 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

sierraclub.org SEO score

83

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

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

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sierraclub.org 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 Sierraclub.org 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

sierraclub.org

Open Graph data is detected on the main page of Sierra Club. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: