Tools & Wizards About Us
aerjournal.com screenshot

Report Summary

  • 28

    Performance

    Renders faster than
    47% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

aerjournal.com

Arrhythmia & Electrophysiology Review (AER) | AER Journal | Radcliffe Cardiology

Page Load Speed

5 sec in total

First Response

178 ms

Resources Loaded

2 sec

Page Rendered

2.8 sec

aerjournal.com screenshot

About Website

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

Arrhythmia & Electrophysiology Review (AER) is a tri-annual journal aimed at assisting time-pressured general and specialist cardiologists to stay abreast of key advances and opinion in the arrhythmia...

Visit aerjournal.com

Key Findings

We analyzed Aerjournal.com page load time and found that the first response time was 178 ms and then it took 4.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

aerjournal.com performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

20/100

10%

LCP (Largest Contentful Paint)

Value6.9 s

6/100

25%

SI (Speed Index)

Value6.3 s

42/100

10%

TBT (Total Blocking Time)

Value1,090 ms

24/100

30%

CLS (Cumulative Layout Shift)

Value0.151

75/100

15%

TTI (Time to Interactive)

Value12.5 s

14/100

10%

Network Requests Diagram

aerjournal.com

178 ms

aerjournal.com

366 ms

www.aerjournal.com

495 ms

gtm.js

89 ms

uc.js

50 ms

Our browser made a total of 100 requests to load all elements on the main page. We found that 22% of them (22 requests) were addressed to the original Aerjournal.com, 66% (66 requests) were made to Assets.radcliffecardiology.com and 3% (3 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (812 ms) belongs to the original domain Aerjournal.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 749.1 kB (16%)

Content Size

4.6 MB

After Optimization

3.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Aerjournal.com main page is 4.6 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 3.6 MB which makes up the majority of the site volume.

HTML Optimization

-93%

Potential reduce by 364.7 kB

  • Original 393.4 kB
  • After minification 333.7 kB
  • After compression 28.7 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 59.7 kB, which is 15% 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 364.7 kB or 93% of the original size.

Image Optimization

-10%

Potential reduce by 374.6 kB

  • Original 3.6 MB
  • After minification 3.2 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. AER Journal images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 9.5 kB

  • Original 457.4 kB
  • After minification 457.4 kB
  • After compression 447.9 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.

CSS Optimization

-0%

Potential reduce by 215 B

  • Original 136.3 kB
  • After minification 136.3 kB
  • After compression 136.1 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. Aerjournal.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 32 (34%)

Requests Now

95

After Optimization

63

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 95 CSS, Javascripts, AJAX and image requests in order to completely render the main page of AER Journal. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

aerjournal.com

aerjournal.com

178 ms

aerjournal.com

aerjournal.com

366 ms

www.aerjournal.com

www.aerjournal.com

495 ms

gtm.js

gtm.js

89 ms

uc.js

uc.js

50 ms

css_pHBJfx30j2IBgWek6RKBSxyvCcJ-vdYyvqek2CeyGfY.css

css_pHBJfx30j2IBgWek6RKBSxyvCcJ-vdYyvqek2CeyGfY.css

138 ms

css_UjRb46t6WO8EdfwmZ-Irlpa1bdDvphf3Pi_t0NZMvU0.css

css_UjRb46t6WO8EdfwmZ-Irlpa1bdDvphf3Pi_t0NZMvU0.css

271 ms

css

css

47 ms

css

css

87 ms

css_a58YLCa6Jiz9TOA06fPBbCiOSKjl8B6UG_wAMq1ujNs.css

css_a58YLCa6Jiz9TOA06fPBbCiOSKjl8B6UG_wAMq1ujNs.css

515 ms

gpt.js

gpt.js

58 ms

loader.js

loader.js

152 ms

jquery.min.js

jquery.min.js

362 ms

once.min.js

once.min.js

288 ms

drupalSettingsLoader.js

drupalSettingsLoader.js

275 ms

drupal.js

drupal.js

299 ms

drupal.init.js

drupal.init.js

384 ms

js_3vyH2Liy84loM_j5CwyUzfBP9tv4i5zHlDUcSiZ6Y2U.js

js_3vyH2Liy84loM_j5CwyUzfBP9tv4i5zHlDUcSiZ6Y2U.js

484 ms

page.js

page.js

38 ms

js_3KFS0ty8n-Q3VuKVAUA-nEtb-7DD4TNrisBpkStVE-0.js

js_3KFS0ty8n-Q3VuKVAUA-nEtb-7DD4TNrisBpkStVE-0.js

415 ms

popper.min.js

popper.min.js

449 ms

bootstrap.min.js

bootstrap.min.js

502 ms

jquery.touchSwipe.min.js

jquery.touchSwipe.min.js

553 ms

swiper.min.js

swiper.min.js

812 ms

countdown.min.js

countdown.min.js

669 ms

script.js

script.js

812 ms

script.js

script.js

812 ms

commas.js

commas.js

811 ms

js_DmpTJQvL4xsfHf4LApn3ngDYxAbGiQ1yhUJhPdP-9E8.js

js_DmpTJQvL4xsfHf4LApn3ngDYxAbGiQ1yhUJhPdP-9E8.js

811 ms

pubads_impl.js

pubads_impl.js

9 ms

css2

css2

43 ms

RC.svg

RC.svg

131 ms

x.svg

x.svg

131 ms

facebook.svg

facebook.svg

250 ms

youtube.svg

youtube.svg

260 ms

linkedIn.svg

linkedIn.svg

263 ms

instagram.svg

instagram.svg

263 ms

AER_white_IF_2_6_v2.svg

AER_white_IF_2_6_v2.svg

264 ms

bhrs-white.png

bhrs-white.png

266 ms

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FARAPULSE%20Arrhythmia%20Academy%20Assets%20-%20Web%20Thumbnail%202%20-%20Schilling%20Video.png

270 ms

Pacemaker.png

Pacemaker.png

271 ms

HF_3.png

HF_3.png

271 ms

DELV-21266_IND_HRS24_Deisenhofer_1920x1080.png

DELV-21266_IND_HRS24_Deisenhofer_1920x1080.png

279 ms

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Atrial_Fib.png

278 ms

DELV-21267_IND_HRS24_Chinitz_1920x1080.jpg

DELV-21267_IND_HRS24_Chinitz_1920x1080.jpg

270 ms

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DELV-20597_IND_AA_24_Wan_1920x1080.jpg

278 ms

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Electroanatomical%20modelling.png

284 ms

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DELV-20320_IND-RC-POTS-24_Brand3%20%282%29%20%281%29.png

280 ms

lbbap.png

lbbap.png

279 ms

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DELV-18783_IND_ACC24_Series_1920x1080%20%281%29.png

280 ms

AF_Ablation.png

AF_Ablation.png

282 ms

lock.svg

lock.svg

281 ms

conduction_system_pacing.png

conduction_system_pacing.png

284 ms

DELV-23303_AtrC_ESC2024_Hanke_1920x1080.png

DELV-23303_AtrC_ESC2024_Hanke_1920x1080.png

295 ms

DELV-22817-IND_ESC24_WrapUp_1920x1080.jpg

DELV-22817-IND_ESC24_WrapUp_1920x1080.jpg

285 ms

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DELV-22934_IND_ESC24_veasey_1920x1080_1.jpg

286 ms

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296 ms

DELV-18905_IND_ESC24_LBCT_1_1920x1080%20%282%29.jpg

DELV-18905_IND_ESC24_LBCT_1_1920x1080%20%282%29.jpg

287 ms

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DELV-23220_IND_ESC24_VanGelder_1920x1080_2.jpg

294 ms

DELV-23077_IND_ESC24_Nam-Cho_920x1080.jpg

DELV-23077_IND_ESC24_Nam-Cho_920x1080.jpg

295 ms

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DELV-23039_IND_ESC24_Kotecha_1920x1080.jpg

296 ms

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DELV-22987_IND_ESC24_Lopes_1920x1080.jpg

297 ms

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297 ms

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299 ms

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298 ms

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299 ms

Tachycardia.png

Tachycardia.png

299 ms

CathLab.png

CathLab.png

172 ms

Avenir.ttc

Avenir.ttc

180 ms

PAJJhLM6sSoWKfWCAAwDAjgbRAAB42mNgYGBkAIIbCZo5IPrmUn0hGA0AO8EFTQAA

PAJJhLM6sSoWKfWCAAwDAjgbRAAB42mNgYGBkAIIbCZo5IPrmUn0hGA0AO8EFTQAA

2 ms

sm.25.html

sm.25.html

77 ms

eso.D0Uc7kY6.js

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109 ms

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51 ms

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DELV-18916_WAO_CLIMB_2024_Series_1920x1080.jpg

41 ms

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DELV-23303_AtrC_ESC2024_Hanke_1920x1080.png

42 ms

DELV-21800_AtrC_ESC_Symposium_2024_Branding%20On-Demand%20EMAIL.jpg

DELV-21800_AtrC_ESC_Symposium_2024_Branding%20On-Demand%20EMAIL.jpg

40 ms

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DELV-22817-IND_ESC24_WrapUp_1920x1080.jpg

39 ms

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DELV-22934_IND_ESC24_veasey_1920x1080_1.jpg

36 ms

DELV-23608_IND_ESC24_Kotecha2_1920x1080.png

DELV-23608_IND_ESC24_Kotecha2_1920x1080.png

38 ms

DELV-18905_IND_ESC24_LBCT_1_1920x1080%20%282%29.jpg

DELV-18905_IND_ESC24_LBCT_1_1920x1080%20%282%29.jpg

36 ms

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DELV-23220_IND_ESC24_VanGelder_1920x1080_2.jpg

35 ms

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DELV-23077_IND_ESC24_Nam-Cho_920x1080.jpg

30 ms

DELV-23039_IND_ESC24_Kotecha_1920x1080.jpg

DELV-23039_IND_ESC24_Kotecha_1920x1080.jpg

29 ms

DELV-22987_IND_ESC24_Lopes_1920x1080.jpg

DELV-22987_IND_ESC24_Lopes_1920x1080.jpg

29 ms

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DELV-22813_IND_ESC24_WrapUp1_1920x1080.jpg

32 ms

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ABT_EHRA_Abstract_Thumbnail_Abstracts%20%282%29.jpg

28 ms

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29 ms

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27 ms

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89 ms

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89 ms

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90 ms

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88 ms

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87 ms

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88 ms

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81 ms

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80 ms

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83 ms

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AER.svg

80 ms

arrowMini.svg

arrowMini.svg

79 ms

magnifier.png

magnifier.png

81 ms

Accessibility Review

aerjournal.com accessibility score

80

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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

[id] attributes on active, focusable elements are not unique

High

Heading elements are not in a sequentially-descending order

Best Practices

aerjournal.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

aerjournal.com SEO score

89

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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 Aerjournal.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 Aerjournal.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

aerjournal.com

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