Tools & Wizards About Us
stellarscientific.com screenshot

Report Summary

  • 24

    Performance

    Renders faster than
    43% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

stellarscientific.com

Stellar Scientific - Science Laboratory Equipment and Supplies For Life Science Research Laboratories

Page Load Speed

2.7 sec in total

First Response

118 ms

Resources Loaded

2.1 sec

Page Rendered

552 ms

stellarscientific.com screenshot

About Website

Welcome to stellarscientific.com homepage info - get ready to check Stellar Scientific best content for United States right away, or after learning these important things about stellarscientific.com

Competitively priced, quality laboratory equipment and consumables. Free shipping on orders over $200!

Visit stellarscientific.com

Key Findings

We analyzed Stellarscientific.com page load time and found that the first response time was 118 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

stellarscientific.com performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

37/100

10%

LCP (Largest Contentful Paint)

Value5.3 s

21/100

25%

SI (Speed Index)

Value17.5 s

0/100

10%

TBT (Total Blocking Time)

Value6,200 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.069

96/100

15%

TTI (Time to Interactive)

Value20.8 s

2/100

10%

Network Requests Diagram

stellarscientific.com

118 ms

stellarscientific.com

146 ms

www.stellarscientific.com

735 ms

css

78 ms

theme-083964a0-45e7-013d-beca-76439d427970.css

87 ms

Our browser made a total of 80 requests to load all elements on the main page. We found that 13% of them (10 requests) were addressed to the original Stellarscientific.com, 56% (45 requests) were made to Cdn11.bigcommerce.com and 4% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1 sec) relates to the external source Cdn.cookie-script.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 562.6 kB (17%)

Content Size

3.3 MB

After Optimization

2.8 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Stellarscientific.com main page is 3.3 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. 70% of websites need less resources to load. Images take 2.7 MB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 532.9 kB

  • Original 584.5 kB
  • After minification 420.2 kB
  • After compression 51.5 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 164.2 kB, which is 28% 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 532.9 kB or 91% of the original size.

Image Optimization

-1%

Potential reduce by 27.4 kB

  • Original 2.7 MB
  • After minification 2.7 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. Stellar Scientific images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 2.3 kB

  • Original 75.4 kB
  • After minification 75.4 kB
  • After compression 73.1 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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 19 (31%)

Requests Now

61

After Optimization

42

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 61 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Stellar Scientific. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

stellarscientific.com

stellarscientific.com

118 ms

stellarscientific.com

stellarscientific.com

146 ms

www.stellarscientific.com

www.stellarscientific.com

735 ms

css

css

78 ms

theme-083964a0-45e7-013d-beca-76439d427970.css

theme-083964a0-45e7-013d-beca-76439d427970.css

87 ms

js

js

80 ms

google_analytics4-9a468da7c21d2e9e41cd445d567f3f3a5a9b6759.js

google_analytics4-9a468da7c21d2e9e41cd445d567f3f3a5a9b6759.js

79 ms

js

js

447 ms

loader.js

loader.js

124 ms

w9bdixgj.js

w9bdixgj.js

72 ms

tp.widget.bootstrap.min.js

tp.widget.bootstrap.min.js

67 ms

index.js

index.js

134 ms

theme-bundle.main.js

theme-bundle.main.js

110 ms

csrf-protection-header-5eeddd5de78d98d146ef4fd71b2aedce4161903e.js

csrf-protection-header-5eeddd5de78d98d146ef4fd71b2aedce4161903e.js

103 ms

visitor_stencil.js

visitor_stencil.js

103 ms

91e89e95f4de5683f9dd38595.js

91e89e95f4de5683f9dd38595.js

103 ms

cd779b389f06f7a5de5322a65d0cf7f0.js

cd779b389f06f7a5de5322a65d0cf7f0.js

1016 ms

jquery-3.6.0.min.js

jquery-3.6.0.min.js

423 ms

app-punchout-min.js

app-punchout-min.js

451 ms

jquery.redirect.js

jquery.redirect.js

620 ms

main.8c103555.chunk.js

main.8c103555.chunk.js

53 ms

fbevents.js

fbevents.js

377 ms

gtm.js

gtm.js

375 ms

us.gif

us.gif

335 ms

free-shipping-200-website-sidebanner2.jpg

free-shipping-200-website-sidebanner2.jpg

636 ms

aboutus.png

aboutus.png

565 ms

secure90x72.gif

secure90x72.gif

559 ms

stellar_scientific_10_year_graphic_250_px_1724683215__17813.original.png

stellar_scientific_10_year_graphic_250_px_1724683215__17813.original.png

207 ms

Stellar_Benchpack_Launch_Banner_900_x_300.jpg

Stellar_Benchpack_Launch_Banner_900_x_300.jpg

374 ms

SmartGlow_Banner_6.png

SmartGlow_Banner_6.png

511 ms

ss_freezewithease_banner_v2__39561.png

ss_freezewithease_banner_v2__39561.png

515 ms

Petri_Dish_Banner.png

Petri_Dish_Banner.png

519 ms

deadbolt_banner__99875.png

deadbolt_banner__99875.png

519 ms

labconsumables.webp

labconsumables.webp

434 ms

largelabequipment.webp

largelabequipment.webp

514 ms

benchtoplab.webp

benchtoplab.webp

517 ms

electrophoresis.webp

electrophoresis.webp

578 ms

molecularbiology.webp

molecularbiology.webp

578 ms

labfreezerracks.webp

labfreezerracks.webp

579 ms

productaccessories.webp

productaccessories.webp

580 ms

microscopy.webp

microscopy.webp

583 ms

labchemicals.webp

labchemicals.webp

578 ms

analyticalchem.webp

analyticalchem.webp

580 ms

labsafety.webp

labsafety.webp

584 ms

stellarswag.webp

stellarswag.webp

581 ms

Haier_Biomedical_Medium_Sized_Liquid_Nitrogen_Containers_For_Holding_Up_to_175L_of_Cryogenic_Samples_-_Stellar_Scientific__77279.1724708850.png

Haier_Biomedical_Medium_Sized_Liquid_Nitrogen_Containers_For_Holding_Up_to_175L_of_Cryogenic_Samples_-_Stellar_Scientific__77279.1724708850.png

584 ms

Haier_Biomedical_Medium_Sized_Liquid_Nitrogen_Containers_For_Holding_Up_to_175L_of_Cryogenic_Samples_-_Stellar_Scientific__59263.1724706604.png

Haier_Biomedical_Medium_Sized_Liquid_Nitrogen_Containers_For_Holding_Up_to_175L_of_Cryogenic_Samples_-_Stellar_Scientific__59263.1724706604.png

761 ms

Haier_Biomedical_Medium_Sized_Liquid_Nitrogen_Containers_For_Holding_Up_to_175L_of_Cryogenic_Samples_-_Stellar_Scientific__39384.1724704768.png

Haier_Biomedical_Medium_Sized_Liquid_Nitrogen_Containers_For_Holding_Up_to_175L_of_Cryogenic_Samples_-_Stellar_Scientific__39384.1724704768.png

760 ms

Disposable_tray_liners__82975.1724704232.jpg

Disposable_tray_liners__82975.1724704232.jpg

761 ms

Haier_Biomedical_LN2_Canister_For_Storing_Cryogenic_Samples_In_Liquid_Nitrogen_-_Lab_Freezers_-_Stellar_Scientific__32959.1724679963.jpg

Haier_Biomedical_LN2_Canister_For_Storing_Cryogenic_Samples_In_Liquid_Nitrogen_-_Lab_Freezers_-_Stellar_Scientific__32959.1724679963.jpg

761 ms

Flip_Top_Open_1__24550.1724610270.jpg

Flip_Top_Open_1__24550.1724610270.jpg

761 ms

M4027_Tool_and_Wrap__07406.1724609018.png

M4027_Tool_and_Wrap__07406.1724609018.png

762 ms

M4027_Tip__89792.1724608918.png

M4027_Tip__89792.1724608918.png

767 ms

M4017_Tool_and_Wrap__09021.1724608797.png

M4017_Tool_and_Wrap__09021.1724608797.png

769 ms

M4017_Tip__38748.1724608615.png

M4017_Tip__38748.1724608615.png

767 ms

M4030_Tool_and_Wrap__89959.1724608210.png

M4030_Tool_and_Wrap__89959.1724608210.png

769 ms

M4035_Tip__01326.1724607704.png

M4035_Tip__01326.1724607704.png

766 ms

Cannacaps__51349.1527618738.jpg

Cannacaps__51349.1527618738.jpg

766 ms

Cannavial-clear__94858.1527691143.jpg

Cannavial-clear__94858.1527691143.jpg

790 ms

3247-00__49043.1599411875.png

3247-00__49043.1599411875.png

784 ms

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50ml_racked_tubes__41556.1584911667.jpg

783 ms

3247-09_1__50129.1557073404.jpg

3247-09_1__50129.1557073404.jpg

788 ms

benchmark.png

benchmark.png

507 ms

labnet.png

labnet.png

507 ms

argostech.png

argostech.png

506 ms

celltreat.png

celltreat.png

510 ms

heathrow.png

heathrow.png

505 ms

v2.zopim.com

v2.zopim.com

403 ms

fetch.umd.min.js

fetch.umd.min.js

405 ms

main.9fdf1526.chunk.css

main.9fdf1526.chunk.css

61 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

341 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVc.ttf

398 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

397 ms

conical_tubes2__85560.1513966850.jpg

conical_tubes2__85560.1513966850.jpg

588 ms

Teepa_10ul_filter_closed_-_with_stellar_label2__96841.1577235954.png

Teepa_10ul_filter_closed_-_with_stellar_label2__96841.1577235954.png

582 ms

CryoForge_2mL_External_Thread_Sterile_Cryovial_with_Star_Grip_Base_For_Cryogenic_Storage_of_Tissue_and_Laboratory_Samples_in_Gas_Phase_Liquid_Nitrogen_-_6222-S0_-_Lab_Supplies_-_Stellar_Scientific__15648.1704206972.png

CryoForge_2mL_External_Thread_Sterile_Cryovial_with_Star_Grip_Base_For_Cryogenic_Storage_of_Tissue_and_Laboratory_Samples_in_Gas_Phase_Liquid_Nitrogen_-_6222-S0_-_Lab_Supplies_-_Stellar_Scientific__15648.1704206972.png

449 ms

index.php

index.php

336 ms

nobot

nobot

74 ms

stellarscientific_logo.svg

stellarscientific_logo.svg

299 ms

asset_composer.js

asset_composer.js

210 ms

Accessibility Review

stellarscientific.com accessibility score

95

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

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

stellarscientific.com best practices score

67

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

stellarscientific.com SEO score

84

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

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 doesn't use legible font sizes

High

Tap targets are not sized appropriately

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 Stellarscientific.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 Stellarscientific.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

stellarscientific.com

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