Access tenement.org. Immigration Museum NYC

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

16/100

25%

SI (Speed Index)

Value14.3 s

1/100

10%

TBT (Total Blocking Time)

Value6,300 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.053

98/100

15%

TTI (Time to Interactive)

Value21.8 s

1/100

10%

tenement.org

18 ms

tenement.org

377 ms

css

59 ms

main.css

25 ms

main.css

26 ms

Our browser made a total of 129 requests to load all elements on the main page. We found that 89% of them (115 requests) were addressed to the original Tenement.org, 3% (4 requests) were made to Support.tenement.org and 2% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (377 ms) belongs to the original domain Tenement.org.

Content Size

2.9 MB

After Optimization

2.5 MB

In fact, the total size of Tenement.org main page is 2.9 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. 55% of websites need less resources to load. Images take 2.6 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 38.3 kB

Original 47.9 kB
After minification 36.2 kB
After compression 9.6 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. This page needs HTML code to be minified as it can gain 11.7 kB, which is 24% 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 38.3 kB or 80% of the original size.

Image Optimization

-5%

Potential reduce by 119.0 kB

Original 2.6 MB
After minification 2.5 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. Tenement images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 110.5 kB

Original 167.5 kB
After minification 145.1 kB
After compression 57.0 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 110.5 kB or 66% of the original size.

CSS Optimization

-84%

Potential reduce by 97.0 kB

Original 115.2 kB
After minification 96.7 kB
After compression 18.2 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. Tenement.org needs all CSS files to be minified and compressed as it can save up to 97.0 kB or 84% of the original size.

Requests Now

123

After Optimization

The browser has sent 123 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tenement. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

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

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.

High

Buttons do not have an accessible name

High

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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

High

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

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Links do not have descriptive text

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

High

robots.txt is not valid

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/).

High

Document uses legible font sizes

Language and Encoding

Language Detected

EN
Language Claimed

N/A
Encoding

ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tenement.org 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 Tenement.org main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

tenement.org

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Immigration Museum NYC | Tenement Museum

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

tenement.org

tenement.org

css

main.css

main.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

tenement.org

tenement.org

css

main.css

main.css

nav.css

complementary.css

jquery.min.js

jquery-ui.min.js

lwd_popup.js

lwd_popup.css

fadeslideshow.js

ga.js

body_bg.gif

tenement_logo.gif

tours_start_and_end_at_103_orchard_please_note.gif

visitor_center_and_museum_shop.gif

facebook_icon.png

twitter_icon.png

instagram_icon.png

e-newsletter.gif

sign_up.gif

visit_nav.gif

about_us_nav.gif

support_us_nav.gif

event_nav1.gif

play_nav.gif

education_nav.gif

shop_nav.gif

welcome_home_nav.gif

visit_nav_on.gif

tourstix_nav.gif

evenings_nav.gif

directions_nav.gif

grptours_nav.gif

access_nav.gif

area_nav.gif

about_us_nav_on.gif

ourstory_nav.gif

jobs_nav.gif

blog_nav.gif

media_nav.gif

staff_nav.png