Tools & Wizards About Us
jbslemmer.com screenshot

Report Summary

  • 43

    Performance

    Renders faster than
    62% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 81

    SEO

    Google-friendlier than
    43% of websites

jbslemmer.com

John Slemmer's Web Site - An Information Technology Professional and Environmental Affairs Director

Page Load Speed

40.8 sec in total

First Response

216 ms

Resources Loaded

40.1 sec

Page Rendered

439 ms

jbslemmer.com screenshot

About Website

Visit jbslemmer.com now to see the best up-to-date Jb Slemmer content and also check out these interesting facts you probably never knew about jbslemmer.com

John Slemmer, an information technology innovation professional with considerable international experience from 5 years in Europe, Environmental Health and Safety Management, web design, database deve...

Visit jbslemmer.com

Key Findings

We analyzed Jbslemmer.com page load time and found that the first response time was 216 ms and then it took 40.6 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 were 4 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

jbslemmer.com performance score

43

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

53/100

10%

LCP (Largest Contentful Paint)

Value3.6 s

61/100

25%

SI (Speed Index)

Value5.4 s

56/100

10%

TBT (Total Blocking Time)

Value1,790 ms

10/100

30%

CLS (Cumulative Layout Shift)

Value0.141

78/100

15%

TTI (Time to Interactive)

Value11.2 s

20/100

10%

Network Requests Diagram

jbslemmer.com

216 ms

jbslemmer.com

475 ms

js

76 ms

bootstrap.min.css

43 ms

adsbygoogle.js

87 ms

Our browser made a total of 116 requests to load all elements on the main page. We found that 12% of them (14 requests) were addressed to the original Jbslemmer.com, 16% (18 requests) were made to Pagead2.googlesyndication.com and 16% (18 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (20.4 sec) relates to the external source Oap.accuweather.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 456.5 kB (27%)

Content Size

1.7 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jbslemmer.com main page is 1.7 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. 65% of websites need less resources to load. Javascripts take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 72.0 kB

  • Original 91.4 kB
  • After minification 85.5 kB
  • After compression 19.4 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. 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 72.0 kB or 79% of the original size.

Image Optimization

-1%

Potential reduce by 8.0 kB

  • Original 579.7 kB
  • After minification 571.7 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. Jb Slemmer images are well optimized though.

JavaScript Optimization

-37%

Potential reduce by 372.8 kB

  • Original 1.0 MB
  • After minification 1.0 MB
  • After compression 639.1 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 372.8 kB or 37% of the original size.

CSS Optimization

-84%

Potential reduce by 3.7 kB

  • Original 4.4 kB
  • After minification 3.4 kB
  • After compression 725 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. Jbslemmer.com needs all CSS files to be minified and compressed as it can save up to 3.7 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 47 (56%)

Requests Now

84

After Optimization

37

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 84 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jb Slemmer. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

jbslemmer.com

jbslemmer.com

216 ms

jbslemmer.com

jbslemmer.com

475 ms

js

js

76 ms

bootstrap.min.css

bootstrap.min.css

43 ms

adsbygoogle.js

adsbygoogle.js

87 ms

custom.css

custom.css

190 ms

js

js

87 ms

page.js

page.js

65 ms

brandjs.js

brandjs.js

27 ms

page

page

19512 ms

wizard_text.js

wizard_text.js

19511 ms

show_ads.js

show_ads.js

25 ms

show_ads_impl.js

show_ads_impl.js

88 ms

fpi.js

fpi.js

20 ms

fpi.js

fpi.js

16 ms

launch.js

launch.js

20425 ms

jquery.min.js

jquery.min.js

29 ms

bootstrap.min.js

bootstrap.min.js

243 ms

fpi.js

fpi.js

62 ms

blakeface2.JPG

blakeface2.JPG

265 ms

button_go.gif

button_go.gif

110 ms

world_rotating_reduced.gif

world_rotating_reduced.gif

263 ms

50star_flag.gif

50star_flag.gif

263 ms

EHSO_logo_rtsm.gif

EHSO_logo_rtsm.gif

263 ms

EHSO_Banner.gif

EHSO_Banner.gif

263 ms

sm.25.html

sm.25.html

106 ms

eso.D0Uc7kY6.js

eso.D0Uc7kY6.js

130 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

100 ms

zrt_lookup.html

zrt_lookup.html

68 ms

branding.png

branding.png

64 ms

ads

ads

641 ms

x-click-but21.gif

x-click-but21.gif

15 ms

pixel.gif

pixel.gif

4 ms

blakeface2.JPG

blakeface2.JPG

287 ms

world_rotating_reduced.gif

world_rotating_reduced.gif

358 ms

EHSO_logo_rtsm.gif

EHSO_logo_rtsm.gif

294 ms

EHSO_Banner.gif

EHSO_Banner.gif

305 ms

50star_flag.gif

50star_flag.gif

304 ms

zone__alpharetta_ga_us___00.png

zone__alpharetta_ga_us___00.png

17 ms

reactive_library.js

reactive_library.js

43 ms

ca-pub-2652511740487935

ca-pub-2652511740487935

72 ms

ads

ads

334 ms

14647552460266794891

14647552460266794891

69 ms

load_preloaded_resource.js

load_preloaded_resource.js

116 ms

abg_lite.js

abg_lite.js

107 ms

window_focus.js

window_focus.js

114 ms

qs_click_protection.js

qs_click_protection.js

107 ms

ufs_web_display.js

ufs_web_display.js

64 ms

448eeb10f9509143a4a255d61e5c4335.js

448eeb10f9509143a4a255d61e5c4335.js

29 ms

fullscreen_api_adapter.js

fullscreen_api_adapter.js

92 ms

interstitial_ad_frame.js

interstitial_ad_frame.js

92 ms

pixel

pixel

49 ms

17907622541707519750

17907622541707519750

279 ms

abg_lite.js

abg_lite.js

92 ms

omrhp.js

omrhp.js

234 ms

Q12zgMmT.js

Q12zgMmT.js

229 ms

feedback_grey600_24dp.png

feedback_grey600_24dp.png

68 ms

settings_grey600_24dp.png

settings_grey600_24dp.png

226 ms

icon.png

icon.png

77 ms

18433835836063413846

18433835836063413846

226 ms

15291456074171478226

15291456074171478226

225 ms

gen_204

gen_204

257 ms

pixel

pixel

251 ms

3206177328368405486

3206177328368405486

47 ms

62bHydCX.html

62bHydCX.html

23 ms

css

css

54 ms

bTlXcH-04rkXILOBMXVqPgIDPtI2JqYddFmG09n4rWw.js

bTlXcH-04rkXILOBMXVqPgIDPtI2JqYddFmG09n4rWw.js

5 ms

rum

rum

28 ms

WTGMIXitrueThExDFjyWWw_FFBI9UNtQbYwZCxBHg48.js

WTGMIXitrueThExDFjyWWw_FFBI9UNtQbYwZCxBHg48.js

15 ms

ea8IacM9Wef3EJPWRrHjgE4B6CnlZxHVBg3etBD7Sg.woff

ea8IacM9Wef3EJPWRrHjgE4B6CnlZxHVBg3etBD7Sg.woff

40 ms

ea8FacM9Wef3EJPWRrHjgE4B6CnlZxHVDv79pw.woff

ea8FacM9Wef3EJPWRrHjgE4B6CnlZxHVDv79pw.woff

42 ms

pixel

pixel

22 ms

bounce

bounce

28 ms

pixel

pixel

28 ms

rum

rum

21 ms

activeview

activeview

65 ms

ads

ads

324 ms

Hitbox

Hitbox

19978 ms

q

q

17 ms

q

q

16 ms

q

q

16 ms

q

q

16 ms

ads

ads

328 ms

ads

ads

236 ms

q

q

2 ms

q

q

2 ms

q

q

1 ms

q

q

9 ms

ads

ads

340 ms

ads

ads

250 ms

ads

ads

395 ms

6640a9b9d78ccf4b6601e3b0600d2550.js

6640a9b9d78ccf4b6601e3b0600d2550.js

5 ms

e89210d32224edd09bc2993e6311cd03.js

e89210d32224edd09bc2993e6311cd03.js

12 ms

14763004658117789537

14763004658117789537

228 ms

ads

ads

227 ms

14763004658117789537

14763004658117789537

216 ms

14763004658117789537

14763004658117789537

215 ms

14763004658117789537

14763004658117789537

213 ms

14763004658117789537

14763004658117789537

217 ms

14763004658117789537

14763004658117789537

216 ms

cookie_push_onload.html

cookie_push_onload.html

207 ms

sn.ashx

sn.ashx

14 ms

gp_match

gp_match

60 ms

usersync.aspx

usersync.aspx

60 ms

um

um

66 ms

pixel

pixel

25 ms

pixel

pixel

17 ms

pixel

pixel

25 ms

pixel

pixel

20 ms

report

report

8 ms

activeview

activeview

69 ms

activeview

activeview

73 ms

activeview

activeview

71 ms

activeview

activeview

72 ms

activeview

activeview

75 ms

activeview

activeview

76 ms

Accessibility Review

jbslemmer.com accessibility score

74

Accessibility Issues

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

High

<object> elements do not have alternate text

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

jbslemmer.com best practices score

50

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

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

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

jbslemmer.com SEO score

81

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

High

Document uses plugins

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

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 Jbslemmer.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 Jbslemmer.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

jbslemmer.com

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