Report Summary

  • 14

    Performance

    Renders faster than
    26% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 69% of websites

  • 0

    Best Practices

  • 92

    SEO

    Google-friendlier than
    75% of websites

Page Load Speed

3.1 sec in total

First Response

1 sec

Resources Loaded

1.9 sec

Page Rendered

176 ms

onepetro.org screenshot

About Website

Visit onepetro.org now to see the best up-to-date Onepetro content for China and also check out these interesting facts you probably never knew about onepetro.org

Visit onepetro.org

Key Findings

We analyzed Onepetro.org page load time and found that the first response time was 1 sec and then it took 2.1 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

onepetro.org performance score

14

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

10/100

10%

LCP (Largest Contentful Paint)

Value16.2 s

0/100

25%

SI (Speed Index)

Value10.9 s

6/100

10%

TBT (Total Blocking Time)

Value12,720 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.125

83/100

15%

TTI (Time to Interactive)

Value27.6 s

0/100

10%

Network Requests Diagram

www.onepetro.org

1031 ms

font-awesome.min.css

33 ms

onepetro.less.css@1.32.1

44 ms

modernizr.js@1.32.1

51 ms

gtm.js

65 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 11% of them (3 requests) were addressed to the original Onepetro.org, 22% (6 requests) were made to D2o2xe7zwn4swr.cloudfront.net and 15% (4 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Onepetro.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 594.1 kB (70%)

Content Size

853.0 kB

After Optimization

258.9 kB

In fact, the total size of Onepetro.org main page is 853.0 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. 50% of websites need less resources to load. Javascripts take 454.7 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 106.4 kB

  • Original 126.5 kB
  • After minification 93.8 kB
  • After compression 20.1 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 32.7 kB, which is 26% 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 106.4 kB or 84% of the original size.

Image Optimization

-10%

Potential reduce by 716 B

  • Original 6.9 kB
  • After minification 6.1 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. Onepetro images are well optimized though.

JavaScript Optimization

-59%

Potential reduce by 267.4 kB

  • Original 454.7 kB
  • After minification 451.2 kB
  • After compression 187.2 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 267.4 kB or 59% of the original size.

CSS Optimization

-83%

Potential reduce by 219.6 kB

  • Original 264.9 kB
  • After minification 264.0 kB
  • After compression 45.4 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. Onepetro.org needs all CSS files to be minified and compressed as it can save up to 219.6 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (50%)

Requests Now

24

After Optimization

12

The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Onepetro. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

onepetro.org accessibility score

88

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

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.

SEO Factors

onepetro.org SEO score

92

Search Engine Optimization Advices

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

    UTF-8

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

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