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jrinstruments.com screenshot

Report Summary

  • 85

    Performance

    Renders faster than
    88% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

jrinstruments.com

JR Instruments - Microscope service repair sales, Culver City, California

Page Load Speed

2 sec in total

First Response

175 ms

Resources Loaded

914 ms

Page Rendered

903 ms

jrinstruments.com screenshot

About Website

Welcome to jrinstruments.com homepage info - get ready to check JR Instruments best content right away, or after learning these important things about jrinstruments.com

Microscope sales and service on reconditioned models Maintenance, Service, Repairs, Reconditioning, Calibrations and Measuring systems for numerous Industrial, Biomedical, Gemological, Manufacturing a...

Visit jrinstruments.com

Key Findings

We analyzed Jrinstruments.com page load time and found that the first response time was 175 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

jrinstruments.com performance score

85

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

73/100

10%

LCP (Largest Contentful Paint)

Value2.3 s

93/100

25%

SI (Speed Index)

Value14.6 s

1/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.008

100/100

15%

TTI (Time to Interactive)

Value2.6 s

98/100

10%

Network Requests Diagram

jrinstruments.com

175 ms

css

34 ms

css

54 ms

jquery.js

28 ms

galleria-1.4.2.min.js

68 ms

Our browser made a total of 103 requests to load all elements on the main page. We found that 97% of them (100 requests) were addressed to the original Jrinstruments.com, 2% (2 requests) were made to Fonts.googleapis.com and 1% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (307 ms) belongs to the original domain Jrinstruments.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.2 MB (32%)

Content Size

9.9 MB

After Optimization

6.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jrinstruments.com main page is 9.9 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. Only a small number of websites need less resources to load. Images take 9.7 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 40.9 kB

  • Original 46.6 kB
  • After minification 25.1 kB
  • After compression 5.7 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 21.5 kB, which is 46% 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 40.9 kB or 88% of the original size.

Image Optimization

-32%

Potential reduce by 3.1 MB

  • Original 9.7 MB
  • After minification 6.6 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. Obviously, JR Instruments needs image optimization as it can save up to 3.1 MB or 32% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-36%

Potential reduce by 50.9 kB

  • Original 141.3 kB
  • After minification 141.3 kB
  • After compression 90.4 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 50.9 kB or 36% of the original size.

CSS Optimization

-30%

Potential reduce by 1.9 kB

  • Original 6.4 kB
  • After minification 6.4 kB
  • After compression 4.5 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. Jrinstruments.com needs all CSS files to be minified and compressed as it can save up to 1.9 kB or 30% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (22%)

Requests Now

102

After Optimization

80

  • Images
  • JavaScript
  • CSS

The browser has sent 102 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JR Instruments. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

jrinstruments.com

jrinstruments.com

175 ms

css

css

34 ms

css

css

54 ms

jquery.js

jquery.js

28 ms

galleria-1.4.2.min.js

galleria-1.4.2.min.js

68 ms

style.css

style.css

67 ms

layout.css

layout.css

67 ms

maxheight.js

maxheight.js

67 ms

Swis721_BT_400.font.js

Swis721_BT_400.font.js

67 ms

Swis721_BT_700.font.js

Swis721_BT_700.font.js

67 ms

galleria.classic.min.js

galleria.classic.min.js

43 ms

bg.gif

bg.gif

51 ms

bg1.gif

bg1.gif

93 ms

bot.gif

bot.gif

50 ms

menu_bg.gif

menu_bg.gif

50 ms

menu_right.gif

menu_right.gif

29 ms

menu_left.gif

menu_left.gif

49 ms

jrinst-logo.png

jrinst-logo.png

92 ms

jr_info.png

jr_info.png

88 ms

slider1.jpg

slider1.jpg

168 ms

slider2.jpg

slider2.jpg

181 ms

slider3.jpg

slider3.jpg

213 ms

slider4.jpg

slider4.jpg

184 ms

slider5.jpg

slider5.jpg

186 ms

border_left.png

border_left.png

90 ms

border_right.png

border_right.png

79 ms

1page_img1.jpg

1page_img1.jpg

90 ms

corner_bottom_left.png

corner_bottom_left.png

111 ms

corner_bottom_right.png

corner_bottom_right.png

119 ms

border_bottom.png

border_bottom.png

120 ms

bg_col1.gif

bg_col1.gif

151 ms

img3_service.jpg

img3_service.jpg

120 ms

bg_col2.gif

bg_col2.gif

123 ms

img4.gif

img4.gif

142 ms

marker3.gif

marker3.gif

149 ms

bg_col3.gif

bg_col3.gif

147 ms

img5.gif

img5.gif

149 ms

corner_top_left.png

corner_top_left.png

153 ms

corner_top_right.png

corner_top_right.png

173 ms

border_top.png

border_top.png

177 ms

tail.gif

tail.gif

179 ms

scott_binder_md_pathologist.png

scott_binder_md_pathologist.png

231 ms

gemological_girl_bw.jpg

gemological_girl_bw.jpg

211 ms

jrinst_fp1.jpg

jrinst_fp1.jpg

213 ms

Satellite.jpg

Satellite.jpg

234 ms

microlab1.jpg

microlab1.jpg

205 ms

microlab2.jpg

microlab2.jpg

208 ms

galleria.classic.css

galleria.classic.css

212 ms

1page_img2.jpg

1page_img2.jpg

205 ms

olympus-distributor-logo_sm.png

olympus-distributor-logo_sm.png

206 ms

logo-nikon.png

logo-nikon.png

205 ms

Z645_LR.jpg

Z645_LR.jpg

217 ms

excelis.jpg

excelis.jpg

221 ms

img_600.png

img_600.png

237 ms

LED-3000_jr_sm.jpg

LED-3000_jr_sm.jpg

217 ms

IMG_3342.PNG

IMG_3342.PNG

277 ms

IMG_3344.PNG

IMG_3344.PNG

252 ms

IMG_3346.PNG

IMG_3346.PNG

232 ms

IMG_3347.PNG

IMG_3347.PNG

252 ms

IMG_3350.PNG

IMG_3350.PNG

251 ms

IMG_3352.PNG

IMG_3352.PNG

234 ms

IMG_3354.PNG

IMG_3354.PNG

259 ms

IMG_3355.PNG

IMG_3355.PNG

282 ms

IMG_3359.PNG

IMG_3359.PNG

244 ms

IMG_3360.PNG

IMG_3360.PNG

278 ms

IMG_3361.PNG

IMG_3361.PNG

249 ms

IMG_3362.PNG

IMG_3362.PNG

281 ms

IMG_3363.PNG

IMG_3363.PNG

260 ms

IMG_3364.PNG

IMG_3364.PNG

259 ms

IMG_3365.PNG

IMG_3365.PNG

268 ms

IMG_3367.PNG

IMG_3367.PNG

263 ms

IMG_3368.PNG

IMG_3368.PNG

263 ms

IMG_3369.PNG

IMG_3369.PNG

263 ms

IMG_3371.PNG

IMG_3371.PNG

307 ms

IMG_3373.PNG

IMG_3373.PNG

283 ms

IMG_3376.PNG

IMG_3376.PNG

282 ms

IMG_3377.PNG

IMG_3377.PNG

260 ms

IMG_3378.PNG

IMG_3378.PNG

261 ms

IMG_3380.PNG

IMG_3380.PNG

260 ms

IMG_3383.PNG

IMG_3383.PNG

284 ms

IMG_3384.PNG

IMG_3384.PNG

283 ms

IMG_3387.PNG

IMG_3387.PNG

268 ms

IMG_3391.PNG

IMG_3391.PNG

270 ms

IMG_3478.PNG

IMG_3478.PNG

264 ms

IMG_3479.jpg

IMG_3479.jpg

269 ms

IMG_3480.jpg

IMG_3480.jpg

277 ms

IMG_3343.PNG

IMG_3343.PNG

276 ms

IMG_3481.PNG

IMG_3481.PNG

271 ms

IMG_3483.PNG

IMG_3483.PNG

234 ms

IMG_3484.PNG

IMG_3484.PNG

230 ms

IMG_3487.PNG

IMG_3487.PNG

231 ms

IMG_3488.PNG

IMG_3488.PNG

240 ms

IMG_3489.PNG

IMG_3489.PNG

221 ms

IMG_3490.PNG

IMG_3490.PNG

210 ms

IMG_3494.PNG

IMG_3494.PNG

204 ms

IMG_3507.png

IMG_3507.png

225 ms

IMG_3525.PNG

IMG_3525.PNG

217 ms

IMG_3530.PNG

IMG_3530.PNG

212 ms

IMG_3531.png

IMG_3531.png

209 ms

title3.gif

title3.gif

195 ms

bg_li.gif

bg_li.gif

192 ms

classic-loader.gif

classic-loader.gif

207 ms

classic-map.png

classic-map.png

208 ms

Accessibility Review

jrinstruments.com accessibility score

67

Accessibility Issues

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

jrinstruments.com best practices score

58

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

SEO Factors

jrinstruments.com SEO score

69

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

Image elements do not have [alt] attributes

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 Jrinstruments.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 Jrinstruments.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

jrinstruments.com

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