Tools & Wizards About Us
cellvis.com screenshot

Report Summary

  • 74

    Performance

    Renders faster than
    83% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

cellvis.com

Cellvis (formerly In Vitro Scientific) - Glass bottom dishes, 6/12/24/96/384 well glass bottom plates, chambered cover glass for high resolution imagi...

Page Load Speed

1.3 sec in total

First Response

135 ms

Resources Loaded

1 sec

Page Rendered

134 ms

cellvis.com screenshot

About Website

Click here to check amazing Cellvis content for United States. Otherwise, check out these important facts you probably never knew about cellvis.com

Starting from $1 per dish, our glass bottom dishes and glass bottom plates are ideal for long-term cell culture and live cell imaging.

Visit cellvis.com

Key Findings

We analyzed Cellvis.com page load time and found that the first response time was 135 ms and then it took 1.2 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

cellvis.com performance score

74

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

33/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

34/100

25%

SI (Speed Index)

Value3.6 s

87/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.038

100/100

15%

TTI (Time to Interactive)

Value4.5 s

83/100

10%

Network Requests Diagram

cellvis.com

135 ms

www.cellvis.com

386 ms

bootstrap.min.css

66 ms

all.css

58 ms

common.css

89 ms

Our browser made a total of 24 requests to load all elements on the main page. We found that 58% of them (14 requests) were addressed to the original Cellvis.com, 13% (3 requests) were made to Use.fontawesome.com and 13% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (386 ms) belongs to the original domain Cellvis.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 49.9 kB (15%)

Content Size

337.6 kB

After Optimization

287.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cellvis.com main page is 337.6 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 254.2 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 5.7 kB

  • Original 8.2 kB
  • After minification 7.5 kB
  • After compression 2.6 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. 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 5.7 kB or 69% of the original size.

Image Optimization

-7%

Potential reduce by 17.8 kB

  • Original 254.2 kB
  • After minification 236.4 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. Cellvis images are well optimized though.

JavaScript Optimization

-40%

Potential reduce by 23.7 kB

  • Original 60.0 kB
  • After minification 46.8 kB
  • After compression 36.3 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 23.7 kB or 40% of the original size.

CSS Optimization

-18%

Potential reduce by 2.7 kB

  • Original 15.1 kB
  • After minification 14.1 kB
  • After compression 12.5 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. Cellvis.com needs all CSS files to be minified and compressed as it can save up to 2.7 kB or 18% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (41%)

Requests Now

17

After Optimization

10

  • Images
  • JavaScript
  • CSS

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cellvis. 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 from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

cellvis.com

cellvis.com

135 ms

www.cellvis.com

www.cellvis.com

386 ms

bootstrap.min.css

bootstrap.min.css

66 ms

all.css

all.css

58 ms

common.css

common.css

89 ms

jquery.min.js

jquery.min.js

51 ms

bootstrap.bundle.min.js

bootstrap.bundle.min.js

74 ms

jquery.form.js

jquery.form.js

215 ms

ivs.common.js

ivs.common.js

201 ms

ivs.form.js

ivs.form.js

201 ms

css

css

40 ms

glass_bottom_dishes_medium.jpg

glass_bottom_dishes_medium.jpg

192 ms

glass_bottom_plates_medium.jpg

glass_bottom_plates_medium.jpg

191 ms

chambered_coverglass_c4_medium.jpg

chambered_coverglass_c4_medium.jpg

240 ms

plate_lid_with_cover_glass_medium.jpg

plate_lid_with_cover_glass_medium.jpg

190 ms

mitochondria-SIM-with-cellvis-glass-bottom-dish.png

mitochondria-SIM-with-cellvis-glass-bottom-dish.png

190 ms

PLA-scaffold.png

PLA-scaffold.png

375 ms

KDEL-receptor-confocal-image.png

KDEL-receptor-confocal-image.png

313 ms

calcein-AM-stained-mitochondria.png

calcein-AM-stained-mitochondria.png

314 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

46 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

54 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVc.ttf

61 ms

fa-solid-900.woff

fa-solid-900.woff

18 ms

fa-regular-400.woff

fa-regular-400.woff

21 ms

Accessibility Review

cellvis.com accessibility score

94

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.

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

Best Practices

cellvis.com 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

cellvis.com SEO score

100

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

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 Cellvis.com 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 Cellvis.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

cellvis.com

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