Tools & Wizards About Us
marraffini.rockefeller.edu screenshot

Report Summary

  • 73

    Performance

    Renders faster than
    83% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

marraffini.rockefeller.edu

Marraffini Lab

Page Load Speed

857 ms in total

First Response

37 ms

Resources Loaded

456 ms

Page Rendered

364 ms

marraffini.rockefeller.edu screenshot

About Website

Click here to check amazing Marraffini Rockefeller content for United States. Otherwise, check out these important facts you probably never knew about marraffini.rockefeller.edu

Visit marraffini.rockefeller.edu

Key Findings

We analyzed Marraffini.rockefeller.edu page load time and found that the first response time was 37 ms and then it took 820 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

marraffini.rockefeller.edu performance score

73

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

92/100

10%

LCP (Largest Contentful Paint)

Value12.9 s

0/100

25%

SI (Speed Index)

Value1.7 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.079

94/100

15%

TTI (Time to Interactive)

Value1.7 s

100/100

10%

Network Requests Diagram

marraffini.rockefeller.edu

37 ms

source-sans-pro:n2,n6,n4:default;cantarell:n4:default;quicksand:n4,n3,n7:default;the-girl-next-door:n4:default;poiret-one:n4:default;loved-by-the-king:n4:default;abel:n4:default;aclonica:n4:default;acme:n4:default;comfortaa:n4:default;didact-gothic:n4:default;droid-sans:n4:default;fresca:n4:default;rancho:n4:default;ubuntu-mono:n4:default;varela-round:n4:default.js

67 ms

marraffini.css

23 ms

d

286 ms

RU_new_home_short2.jpg

249 ms

Our browser made a total of 26 requests to load all elements on the main page. We found that 15% of them (4 requests) were addressed to the original Marraffini.rockefeller.edu, 77% (20 requests) were made to and 8% (2 requests) were made to Use.edgefonts.net. The less responsive or slowest element that took the longest time to load (286 ms) relates to the external source Use.edgefonts.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 38.1 kB (2%)

Content Size

2.3 MB

After Optimization

2.3 MB

  • HTML
  • Images
  • CSS

In fact, the total size of Marraffini.rockefeller.edu main page is 2.3 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. 30% of websites need less resources to load. Images take 2.3 MB which makes up the majority of the site volume.

HTML Optimization

-93%

Potential reduce by 28.6 kB

  • Original 30.9 kB
  • After minification 30.5 kB
  • After compression 2.2 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 28.6 kB or 93% of the original size.

Image Optimization

-0%

Potential reduce by 5.7 kB

  • Original 2.3 MB
  • After minification 2.3 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. Marraffini Rockefeller images are well optimized though.

CSS Optimization

-76%

Potential reduce by 3.8 kB

  • Original 5.0 kB
  • After minification 3.9 kB
  • After compression 1.2 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. Marraffini.rockefeller.edu needs all CSS files to be minified and compressed as it can save up to 3.8 kB or 76% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

4

After Optimization

4

  • Images
  • JavaScript
  • CSS

The browser has sent 4 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Marraffini Rockefeller. According to our analytics all requests are already optimized.

Network Requests Diagram

marraffini.rockefeller.edu

marraffini.rockefeller.edu

37 ms

source-sans-pro:n2,n6,n4:default;cantarell:n4:default;quicksand:n4,n3,n7:default;the-girl-next-door:n4:default;poiret-one:n4:default;loved-by-the-king:n4:default;abel:n4:default;aclonica:n4:default;acme:n4:default;comfortaa:n4:default;didact-gothic:n4:default;droid-sans:n4:default;fresca:n4:default;rancho:n4:default;ubuntu-mono:n4:default;varela-round:n4:default.js

source-sans-pro:n2,n6,n4:default;cantarell:n4:default;quicksand:n4,n3,n7:default;the-girl-next-door:n4:default;poiret-one:n4:default;loved-by-the-king:n4:default;abel:n4:default;aclonica:n4:default;acme:n4:default;comfortaa:n4:default;didact-gothic:n4:default;droid-sans:n4:default;fresca:n4:default;rancho:n4:default;ubuntu-mono:n4:default;varela-round:n4:default.js

67 ms

marraffini.css

marraffini.css

23 ms

d

d

286 ms

RU_new_home_short2.jpg

RU_new_home_short2.jpg

249 ms

RU_new_home_short2_opaque.jpg

RU_new_home_short2_opaque.jpg

33 ms

5cXAA

5cXAA

17 ms

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cPjI8RNHj21j2HeQ4dyZs0CZMoaTDI2dDV3tPb193ZMmM0ycOQsYHYfygFLlQAwAJfd5DAAAAA==

16 ms

kA62aAA==

kA62aAA==

16 ms

wA=

wA=

15 ms

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15 ms

eBRddCttzxVXXXHcjuTm33HbHXffc98BDjzz2xFPPPPfCy5+hWHYrAAA=

eBRddCttzxVXXXHcjuTm33HbHXffc98BDjzz2xFPPPPfCy5+hWHYrAAA=

15 ms

AUc4md0AAA==

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14 ms

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14 ms

AChGn4gAAAA=

AChGn4gAAAA=

13 ms

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13 ms

F6dbBD5m9ImJx+AA==

F6dbBD5m9ImJx+AA==

12 ms

sX82+nMwAAA==

sX82+nMwAAA==

13 ms

wudVWFlSfzMc7T1y9vT5CxfPXb3Gldt3brG8sPU4IPoPCwmbkQAAAA==

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12 ms

k6MQnfpgT9B+wGpugA

k6MQnfpgT9B+wGpugA

11 ms

h1eh40NAA==

h1eh40NAA==

11 ms

h1eh40NAA==

h1eh40NAA==

11 ms

h1eh40NAA==

h1eh40NAA==

11 ms

IL46PuLXz1hprCRWHCuMPY7lx5p9L0n0aehPFphnvgUWWmSxJZZaZrkVVlpltTXWWme9DTbaZLMtttpmux122mV39N699tnvgIMOOeyIo4457oSTTjntjLPOOe+Ciy7Jd9kVV11z3Q033XLbHQXuuue+Bx565LEnnir0TJFiz5V44aVSr7z2xlvvvPfBR5989sVXyUkpZWP8tQWSIgblVZCsokoqS1ElYlJNdTUiPrXUVkequuqpr4G06FcbReQay9AkYpMpS1PNNJethZZaaa2Nttppr4OOOumsi6666a6HnnrJ0VsfffXTX64BBhpksCGGGma4EUYaZbQxxhpnvAnyTDTJZFNMNc10M8w0y2xzzPUv5v+vN+E30d+eQwAAAA==

IL46PuLXz1hprCRWHCuMPY7lx5p9L0n0aehPFphnvgUWWmSxJZZaZrkVVlpltTXWWme9DTbaZLMtttpmux122mV39N699tnvgIMOOeyIo4457oSTTjntjLPOOe+Ciy7Jd9kVV11z3Q033XLbHQXuuue+Bx565LEnnir0TJFiz5V44aVSr7z2xlvvvPfBR5989sVXyUkpZWP8tQWSIgblVZCsokoqS1ElYlJNdTUiPrXUVkequuqpr4G06FcbReQay9AkYpMpS1PNNJethZZaaa2Nttppr4OOOumsi6666a6HnnrJ0VsfffXTX64BBhpksCGGGma4EUYaZbQxxhpnvAnyTDTJZFNMNc10M8w0y2xzzPUv5v+vN+E30d+eQwAAAA==

10 ms

CWX3nvQ8++uSzL7769gfjV3It

CWX3nvQ8++uSzL7769gfjV3It

10 ms

egkULFy9dvmzFytWr1qxdv3HDpi2bd2zfuYsxLyk57UTJ3JyMs0XpfC3TGPIZGFKLwU7LrGBYsq02MRvEzqo8mVDXOJmB4eCho8cOH9nKsJeB4cyp00CZUobjDA0d9Z1t3T29XRMnMUyYMXM6w74DuQwM+8uA0gAbTnZ4AA==

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9 ms

Accessibility Review

marraffini.rockefeller.edu accessibility score

74

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

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

marraffini.rockefeller.edu best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

marraffini.rockefeller.edu SEO score

67

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Marraffini.rockefeller.edu can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Marraffini.rockefeller.edu 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

marraffini.rockefeller.edu

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