Report Summary

  • 47

    Performance

    Renders faster than
    66% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 64

    SEO

    Google-friendlier than
    24% of websites

Page Load Speed

27 sec in total

First Response

1.3 sec

Resources Loaded

21.3 sec

Page Rendered

4.4 sec

jitterfish.tumblr.com screenshot

About Website

Visit jitterfish.tumblr.com now to see the best up-to-date Jitterfish Tumblr content for United States and also check out these interesting facts you probably never knew about jitterfish.tumblr.com

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Key Findings

We analyzed Jitterfish.tumblr.com page load time and found that the first response time was 1.3 sec and then it took 25.7 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

jitterfish.tumblr.com performance score

47

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

67/100

10%

LCP (Largest Contentful Paint)

Value6.9 s

6/100

25%

SI (Speed Index)

Value3.1 s

93/100

10%

TBT (Total Blocking Time)

Value400 ms

68/100

30%

CLS (Cumulative Layout Shift)

Value0.534

14/100

15%

TTI (Time to Interactive)

Value5.4 s

71/100

10%

Network Requests Diagram

jitterfish.tumblr.com

1301 ms

pre_tumblelog.js

118 ms

jquery.min.js

200 ms

jquery.style-my-tooltips.js

119 ms

css

123 ms

Our browser made a total of 128 requests to load all elements on the main page. We found that 5% of them (6 requests) were addressed to the original Jitterfish.tumblr.com, 15% (19 requests) were made to V.cdn.vine.co and 9% (11 requests) were made to 40.media.tumblr.com. The less responsive or slowest element that took the longest time to load (19.8 sec) relates to the external source Cur.cursors-4u.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 501.9 kB (10%)

Content Size

5.2 MB

After Optimization

4.7 MB

In fact, the total size of Jitterfish.tumblr.com main page is 5.2 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. Images take 4.9 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 53.4 kB

  • Original 66.8 kB
  • After minification 56.2 kB
  • After compression 13.4 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 10.5 kB, which is 16% 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 53.4 kB or 80% of the original size.

Image Optimization

-7%

Potential reduce by 330.0 kB

  • Original 4.9 MB
  • After minification 4.6 MB

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. Jitterfish Tumblr images are well optimized though.

JavaScript Optimization

-49%

Potential reduce by 117.5 kB

  • Original 238.4 kB
  • After minification 237.5 kB
  • After compression 120.9 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 117.5 kB or 49% of the original size.

CSS Optimization

-62%

Potential reduce by 967 B

  • Original 1.6 kB
  • After minification 1.6 kB
  • After compression 602 B

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. Jitterfish.tumblr.com needs all CSS files to be minified and compressed as it can save up to 967 B or 62% of the original size.

Requests Breakdown

Number of requests can be reduced by 45 (38%)

Requests Now

120

After Optimization

75

The browser has sent 120 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jitterfish Tumblr. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

jitterfish.tumblr.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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Best Practices

jitterfish.tumblr.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

Missing source maps for large first-party JavaScript

SEO Factors

jitterfish.tumblr.com SEO score

64

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

Page is blocked from indexing

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 Jitterfish.tumblr.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 Jitterfish.tumblr.com 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 data is detected on the main page of Jitterfish Tumblr. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: