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americanexpress.com.tw screenshot

Report Summary

  • 28

    Performance

    Renders faster than
    48% of other websites

  • 99

    Accessibility

    Visual factors better than
    that of 96% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

americanexpress.com.tw

台灣美國運通 | 登入

Page Load Speed

2.8 sec in total

First Response

149 ms

Resources Loaded

2.3 sec

Page Rendered

351 ms

americanexpress.com.tw screenshot

About Website

Click here to check amazing Americanexpress content for Taiwan. Otherwise, check out these important facts you probably never knew about americanexpress.com.tw

美國運通提供您簽帳卡、信用卡、旅遊服務、保險商品及企業支付解決方案等金融服務。申請美國運通卡或登入您的線上服務帳戶。

Visit americanexpress.com.tw

Key Findings

We analyzed Americanexpress.com.tw page load time and found that the first response time was 149 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

americanexpress.com.tw performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

46/100

10%

LCP (Largest Contentful Paint)

Value6.9 s

6/100

25%

SI (Speed Index)

Value3.6 s

87/100

10%

TBT (Total Blocking Time)

Value2,140 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.165

72/100

15%

TTI (Time to Interactive)

Value14.0 s

10/100

10%

Network Requests Diagram

149 ms

177 ms

460 ms

dls.min.css

38 ms

app.css

58 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Americanexpress.com.tw, 46% (18 requests) were made to Aexp-static.com and 5% (2 requests) were made to Icm.aexp-static.com. The less responsive or slowest element that took the longest time to load (694 ms) relates to the external source Americanexpress.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 475.1 kB (42%)

Content Size

1.1 MB

After Optimization

654.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Americanexpress.com.tw main page is 1.1 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. 45% of websites need less resources to load. Javascripts take 430.0 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 262.1 kB

  • Original 293.6 kB
  • After minification 283.9 kB
  • After compression 31.5 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. 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 262.1 kB or 89% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 253.2 kB
  • After minification 253.2 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. Americanexpress images are well optimized though.

JavaScript Optimization

-28%

Potential reduce by 119.9 kB

  • Original 430.0 kB
  • After minification 429.8 kB
  • After compression 310.1 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 119.9 kB or 28% of the original size.

CSS Optimization

-61%

Potential reduce by 93.1 kB

  • Original 152.8 kB
  • After minification 152.7 kB
  • After compression 59.7 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. Americanexpress.com.tw needs all CSS files to be minified and compressed as it can save up to 93.1 kB or 61% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (23%)

Requests Now

30

After Optimization

23

  • Images
  • JavaScript
  • CSS

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Americanexpress. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

149 ms

177 ms

460 ms

dls.min.css

dls.min.css

38 ms

app.css

app.css

58 ms

app_top.js

app_top.js

57 ms

styles.min.b80632b81a35021e4bb28caa7e93739a.css

styles.min.b80632b81a35021e4bb28caa7e93739a.css

63 ms

navScript.js

navScript.js

143 ms

footerScript.js

footerScript.js

141 ms

app_bottom.js

app_bottom.js

99 ms

dls.min.js

dls.min.js

95 ms

enterprise.min.28ccc67af1912c68518f9c6d8975768f.js

enterprise.min.28ccc67af1912c68518f9c6d8975768f.js

99 ms

homepage.min.18745b7c318116282731aadfaf737c1c.js

homepage.min.18745b7c318116282731aadfaf737c1c.js

44 ms

dls-icons.min.js

dls-icons.min.js

298 ms

dls-logo-bluebox-solid.svg

dls-logo-bluebox-solid.svg

95 ms

dls-logo-stack.svg

dls-logo-stack.svg

90 ms

dls-logo-stack-white.svg

dls-logo-stack-white.svg

92 ms

dls-flag-tw.svg

dls-flag-tw.svg

94 ms

dls-logo-line.svg

dls-logo-line.svg

12 ms

dls-flag-tw.svg

dls-flag-tw.svg

13 ms

202103_RPlatCard.png

202103_RPlatCard.png

323 ms

202103_EvaPlatCard.png

202103_EvaPlatCard.png

115 ms

GrccPlat_202403.png

GrccPlat_202403.png

128 ms

202103_EvaGoldCard.png

202103_EvaGoldCard.png

132 ms

Hero_RPlat202103.png

Hero_RPlat202103.png

430 ms

consumer-tagline-white.png

consumer-tagline-white.png

564 ms

annual_HPbanner.jpg

annual_HPbanner.jpg

533 ms

HP_400X130.jpg

HP_400X130.jpg

499 ms

FunTW_2023banner.jpg

FunTW_2023banner.jpg

349 ms

EvaGold_2024JulySept.jpg

EvaGold_2024JulySept.jpg

544 ms

GPlatBanner_20231226.jpg

GPlatBanner_20231226.jpg

454 ms

ws-bg-light-grey.png

ws-bg-light-grey.png

372 ms

325e6ad0-38fb-4bad-861c-d965eab101d5-3.woff

325e6ad0-38fb-4bad-861c-d965eab101d5-3.woff

41 ms

325e6ad0-38fb-4bad-861c-d965eab101d5-3.woff

325e6ad0-38fb-4bad-861c-d965eab101d5-3.woff

41 ms

3be50273-0b2e-4aef-ae68-882eacd611f9-3.woff

3be50273-0b2e-4aef-ae68-882eacd611f9-3.woff

38 ms

3be50273-0b2e-4aef-ae68-882eacd611f9-3.woff

3be50273-0b2e-4aef-ae68-882eacd611f9-3.woff

42 ms

0fababca-4914-46dd-9b0f-efbd51f67ae8-3.woff

0fababca-4914-46dd-9b0f-efbd51f67ae8-3.woff

40 ms

0fababca-4914-46dd-9b0f-efbd51f67ae8-3.woff

0fababca-4914-46dd-9b0f-efbd51f67ae8-3.woff

39 ms

2024ShopSmall.jpg

2024ShopSmall.jpg

694 ms

Accessibility Review

americanexpress.com.tw accessibility score

99

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

Best Practices

americanexpress.com.tw 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

Missing source maps for large first-party JavaScript

SEO Factors

americanexpress.com.tw 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

    JA

  • Language Claimed

    ZH

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Americanexpress.com.tw can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it does not match the claimed Chinese language. Our system also found out that Americanexpress.com.tw 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

americanexpress.com.tw

Open Graph data is detected on the main page of Americanexpress. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: