Tools & Wizards About Us

Report Summary

  • 74

    Performance

    Renders faster than
    83% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

alcatrazislandtickets.com

Alcatraz Tickets | Alcatraz Tours | Visit Alcatraz Island – AlcatrazIslandTickets.com

Page Load Speed

748 ms in total

First Response

81 ms

Resources Loaded

542 ms

Page Rendered

125 ms

About Website

Visit alcatrazislandtickets.com now to see the best up-to-date Alcatraz Island Tickets content for United States and also check out these interesting facts you probably never knew about alcatrazislandtickets.com

Get tickets now to visit Alcatraz prison. Reserve online and save time. Alcatraz Tours depart hourly from Pier 33 in San Francisco, CA.

Visit alcatrazislandtickets.com

Key Findings

We analyzed Alcatrazislandtickets.com page load time and found that the first response time was 81 ms and then it took 667 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

alcatrazislandtickets.com performance score

74

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

38/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

37/100

25%

SI (Speed Index)

Value3.4 s

90/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.071

96/100

15%

TTI (Time to Interactive)

Value4.2 s

86/100

10%

Network Requests Diagram

alcatrazislandtickets.com

81 ms

www.alcatrazislandtickets.com

160 ms

js

47 ms

jquery3.min.js

113 ms

bootstrap.min.js

61 ms

Our browser made a total of 15 requests to load all elements on the main page. We found that 93% of them (14 requests) were addressed to the original Alcatrazislandtickets.com, 7% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (163 ms) belongs to the original domain Alcatrazislandtickets.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 109.4 kB (20%)

Content Size

535.0 kB

After Optimization

425.7 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Alcatrazislandtickets.com main page is 535.0 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 20% of websites need less resources to load. Images take 399.8 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 24.9 kB

  • Original 32.4 kB
  • After minification 30.6 kB
  • After compression 7.6 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 24.9 kB or 77% of the original size.

Image Optimization

-4%

Potential reduce by 17.4 kB

  • Original 399.8 kB
  • After minification 382.4 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. Alcatraz Island Tickets images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 67.1 kB

  • Original 102.7 kB
  • After minification 102.7 kB
  • After compression 35.7 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 67.1 kB or 65% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (23%)

Requests Now

13

After Optimization

10

  • Images
  • JavaScript

The browser has sent 13 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Alcatraz Island Tickets. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

alcatrazislandtickets.com accessibility score

78

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

ARIA input fields do not have accessible names

High

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

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

alcatrazislandtickets.com best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

alcatrazislandtickets.com 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

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Alcatrazislandtickets.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Alcatrazislandtickets.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

Open Graph description is not detected on the main page of Alcatraz Island Tickets. 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: