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oehha.ca.gov screenshot

Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

oehha.ca.gov

Page Load Speed

1.5 sec in total

First Response

407 ms

Resources Loaded

949 ms

Page Rendered

145 ms

oehha.ca.gov screenshot

About Website

Welcome to oehha.ca.gov homepage info - get ready to check Oehha Ca best content for United States right away, or after learning these important things about oehha.ca.gov

OEHHA protects and enhances public health by scientific evaluation of risks posed by hazardous substances

Visit oehha.ca.gov

Key Findings

We analyzed Oehha.ca.gov page load time and found that the first response time was 407 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

oehha.ca.gov performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

64/100

10%

LCP (Largest Contentful Paint)

Value4.4 s

40/100

25%

SI (Speed Index)

Value3.5 s

88/100

10%

TBT (Total Blocking Time)

Value1,170 ms

21/100

30%

CLS (Cumulative Layout Shift)

Value0.665

8/100

15%

TTI (Time to Interactive)

Value11.1 s

20/100

10%

Network Requests Diagram

oehha.ca.gov

407 ms

navigation.js

224 ms

department.js

238 ms

search_gss.css

154 ms

search_gss.js

158 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 71% of them (27 requests) were addressed to the original Oehha.ca.gov, 11% (4 requests) were made to Google.com and 8% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (407 ms) belongs to the original domain Oehha.ca.gov.

Page Optimization Overview & Recommendations

Page size can be reduced by 72.9 kB (61%)

Content Size

120.3 kB

After Optimization

47.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Oehha.ca.gov main page is 120.3 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. 25% of websites need less resources to load. Images take 34.1 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 25.9 kB

  • Original 32.5 kB
  • After minification 23.5 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. This page needs HTML code to be minified as it can gain 9.0 kB, which is 28% 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 25.9 kB or 80% of the original size.

Image Optimization

-49%

Potential reduce by 16.7 kB

  • Original 34.1 kB
  • After minification 17.4 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. Obviously, Oehha Ca needs image optimization as it can save up to 16.7 kB or 49% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-31%

Potential reduce by 8.7 kB

  • Original 27.9 kB
  • After minification 23.1 kB
  • After compression 19.2 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 8.7 kB or 31% of the original size.

CSS Optimization

-84%

Potential reduce by 21.6 kB

  • Original 25.7 kB
  • After minification 15.2 kB
  • After compression 4.1 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. Oehha.ca.gov needs all CSS files to be minified and compressed as it can save up to 21.6 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (59%)

Requests Now

37

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Oehha Ca. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

oehha.ca.gov

oehha.ca.gov

407 ms

navigation.js

navigation.js

224 ms

department.js

department.js

238 ms

search_gss.css

search_gss.css

154 ms

search_gss.js

search_gss.js

158 ms

jsapi

jsapi

22 ms

234x60.js

234x60.js

74 ms

ca_master.css

ca_master.css

84 ms

ca_department.css

ca_department.css

87 ms

navigation_2_level.css

navigation_2_level.css

81 ms

content_3_column.css

content_3_column.css

80 ms

color_scheme_06_sac.css

color_scheme_06_sac.css

88 ms

search_button.gif

search_button.gif

110 ms

logo3.gif

logo3.gif

111 ms

gov_banner_grey.gif

gov_banner_grey.gif

168 ms

Complaint.jpg

Complaint.jpg

167 ms

director.jpg

director.jpg

238 ms

facebook.jpg

facebook.jpg

318 ms

newlogo2.gif

newlogo2.gif

168 ms

amber_alert.gif

amber_alert.gif

168 ms

ShakeOut_Global_GetReady_120x90.gif

ShakeOut_Global_GetReady_120x90.gif

227 ms

15 ms

default+en.css

default+en.css

4 ms

default+en.I.js

default+en.I.js

12 ms

search_bg.gif

search_bg.gif

143 ms

ga.js

ga.js

31 ms

logo.gif

logo.gif

138 ms

navigation_tabs.gif

navigation_tabs.gif

141 ms

left_column_divider.gif

left_column_divider.gif

202 ms

bullet_blue.gif

bullet_blue.gif

205 ms

bullet_black.gif

bullet_black.gif

213 ms

widgets.js

widgets.js

94 ms

bullet_red.gif

bullet_red.gif

203 ms

fyp_234x60.gif

fyp_234x60.gif

38 ms

__utm.gif

__utm.gif

29 ms

footer_corners.gif

footer_corners.gif

159 ms

__utm.gif

__utm.gif

25 ms

button.831500944bc3eb7ea5276ccdc3f71d2e.js

button.831500944bc3eb7ea5276ccdc3f71d2e.js

130 ms

Accessibility Review

oehha.ca.gov accessibility score

92

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-hidden="true"] elements contain focusable descendents

High

[role]s are not contained by their required parent element

Best Practices

oehha.ca.gov 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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

oehha.ca.gov 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

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

    N/A

  • Language Claimed

    EN

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Oehha.ca.gov can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Oehha.ca.gov 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

oehha.ca.gov

Open Graph description is not detected on the main page of Oehha Ca. 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: