Report Summary

  • 20

    Performance

    Renders faster than
    40% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    65% of websites

  • 69

    SEO

    Google-friendlier than
    37% of websites

bpd.lbl.gov

Building Performance Database

Page Load Speed

1.7 sec in total

First Response

175 ms

Resources Loaded

1.4 sec

Page Rendered

135 ms

bpd.lbl.gov screenshot

About Website

Click here to check amazing Bpd Lbl content for United States. Otherwise, check out these important facts you probably never knew about bpd.lbl.gov

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Key Findings

We analyzed Bpd.lbl.gov page load time and found that the first response time was 175 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

bpd.lbl.gov performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.7 s

0/100

10%

LCP (Largest Contentful Paint)

Value11.6 s

0/100

25%

SI (Speed Index)

Value10.1 s

9/100

10%

TBT (Total Blocking Time)

Value1,690 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.022

100/100

15%

TTI (Time to Interactive)

Value15.2 s

7/100

10%

Network Requests Diagram

bpd.lbl.gov

175 ms

bpd.lbl.gov

379 ms

application.min.css

173 ms

css

60 ms

application.min.js

399 ms

Our browser made a total of 15 requests to load all elements on the main page. We found that 47% of them (7 requests) were addressed to the original Bpd.lbl.gov, 27% (4 requests) were made to Fonts.gstatic.com and 20% (3 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (436 ms) belongs to the original domain Bpd.lbl.gov.

Page Optimization Overview & Recommendations

Page size can be reduced by 511.3 kB (65%)

Content Size

787.8 kB

After Optimization

276.5 kB

In fact, the total size of Bpd.lbl.gov main page is 787.8 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. 15% of websites need less resources to load. Javascripts take 710.2 kB which makes up the majority of the site volume.

HTML Optimization

-60%

Potential reduce by 1.3 kB

  • Original 2.2 kB
  • After minification 1.9 kB
  • After compression 883 B

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 286 B, which is 13% 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 1.3 kB or 60% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 7.5 kB
  • After minification 7.5 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. Bpd Lbl images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 456.5 kB

  • Original 710.2 kB
  • After minification 710.2 kB
  • After compression 253.7 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 456.5 kB or 64% of the original size.

CSS Optimization

-79%

Potential reduce by 53.5 kB

  • Original 67.9 kB
  • After minification 67.9 kB
  • After compression 14.4 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. Bpd.lbl.gov needs all CSS files to be minified and compressed as it can save up to 53.5 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (44%)

Requests Now

9

After Optimization

5

The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bpd Lbl. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

bpd.lbl.gov accessibility score

93

Accessibility Issues

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

Best Practices

bpd.lbl.gov best practices score

83

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

bpd.lbl.gov SEO score

69

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

High

robots.txt is not valid

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

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bpd.lbl.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) and no language is claimed in <html> or <meta> tags either. Our system also found out that Bpd.lbl.gov 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

Open Graph description is not detected on the main page of Bpd Lbl. 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: