Tools & Wizards About Us
mapcollections.brooklynhistory.org screenshot

Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

mapcollections.brooklynhistory.org

Map Collections - Historical maps in BHS’s collection span the years 1562 to 2012 and depict the five boroughs, New York City, Long Island, New York S...

Page Load Speed

2.5 sec in total

First Response

57 ms

Resources Loaded

1.5 sec

Page Rendered

882 ms

mapcollections.brooklynhistory.org screenshot

About Website

Visit mapcollections.brooklynhistory.org now to see the best up-to-date Map Collections Brooklynhistory content for United States and also check out these interesting facts you probably never knew about mapcollections.brooklynhistory.org

Historical maps in BHS’s collection span the years 1562 to 2012 and depict the five boroughs, New York City, Long Island, New York State, New Jersey, New England, the mid-Atlantic, the eastern United ...

Visit mapcollections.brooklynhistory.org

Key Findings

We analyzed Mapcollections.brooklynhistory.org page load time and found that the first response time was 57 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

mapcollections.brooklynhistory.org performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value16.4 s

0/100

25%

SI (Speed Index)

Value4.1 s

79/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.569

12/100

15%

TTI (Time to Interactive)

Value4.4 s

84/100

10%

Network Requests Diagram

mapcollections.brooklynhistory.org

57 ms

mapcollections.brooklynhistory.org

99 ms

js

72 ms

styles.css

18 ms

style.min.css

25 ms

Our browser made a total of 33 requests to load all elements on the main page. We found that 94% of them (31 requests) were addressed to the original Mapcollections.brooklynhistory.org, 3% (1 request) were made to Googletagmanager.com and 3% (1 request) were made to Code.jquery.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Mapcollections.brooklynhistory.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 83.3 kB (1%)

Content Size

5.8 MB

After Optimization

5.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Mapcollections.brooklynhistory.org main page is 5.8 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. 35% of websites need less resources to load. Images take 5.5 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 80.8 kB

  • Original 99.7 kB
  • After minification 99.0 kB
  • After compression 18.9 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 80.8 kB or 81% of the original size.

Image Optimization

-0%

Potential reduce by 581 B

  • Original 5.5 MB
  • After minification 5.5 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. Map Collections Brooklynhistory images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 329 B

  • Original 169.1 kB
  • After minification 169.1 kB
  • After compression 168.8 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

-7%

Potential reduce by 1.6 kB

  • Original 22.4 kB
  • After minification 22.4 kB
  • After compression 20.7 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. Mapcollections.brooklynhistory.org has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 6 (21%)

Requests Now

29

After Optimization

23

  • Images
  • JavaScript
  • CSS

The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Map Collections Brooklynhistory. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

mapcollections.brooklynhistory.org

mapcollections.brooklynhistory.org

57 ms

mapcollections.brooklynhistory.org

mapcollections.brooklynhistory.org

99 ms

js

js

72 ms

styles.css

styles.css

18 ms

style.min.css

style.min.css

25 ms

image-renderer.css

image-renderer.css

29 ms

jquery-3.3.1.min.js

jquery-3.3.1.min.js

20 ms

flickity.pkgd.min.js

flickity.pkgd.min.js

42 ms

openseadragon.js

openseadragon.js

116 ms

app.js

app.js

49 ms

frontend-gtag.min.js

frontend-gtag.min.js

48 ms

jquery.wp-smartcrop.min.js

jquery.wp-smartcrop.min.js

45 ms

cbh-logo-black.svg

cbh-logo-black.svg

47 ms

arr-ne.svg

arr-ne.svg

49 ms

h-q-1895.fl_.jpg

h-q-1895.fl_.jpg

360 ms

h-b-p-1835a.fl_.jpg

h-b-p-1835a.fl_.jpg

411 ms

h-b-a-1804-1918.r.jpg

h-b-a-1804-1918.r.jpg

349 ms

h-b-a-1776-1864.fl_.jpg

h-b-a-1776-1864.fl_.jpg

331 ms

h-b-pp-1865.fl_.jpg

h-b-pp-1865.fl_.jpg

346 ms

h-b-p-1870-1943-a.fl_.jpg

h-b-p-1870-1943-a.fl_.jpg

381 ms

h-b-p-1838a.fl_.jpg

h-b-p-1838a.fl_.jpg

637 ms

h-b-c-193-.fl_.jpg

h-b-c-193-.fl_.jpg

1064 ms

h-bc-1974.fl_.jpg

h-bc-1974.fl_.jpg

1092 ms

arr-e.svg

arr-e.svg

370 ms

icon-search.svg

icon-search.svg

383 ms

bhs_ba003885404_a-1200x866.jpg

bhs_ba003885404_a-1200x866.jpg

935 ms

bhs_ba003400496_a-1200x822.jpg

bhs_ba003400496_a-1200x822.jpg

805 ms

bhs_bpp003343266_a-1200x727.jpg

bhs_bpp003343266_a-1200x727.jpg

1089 ms

bhs_nys003381949_a-958x1200.jpg

bhs_nys003381949_a-958x1200.jpg

1091 ms

bhs_nyc004040262_a-987x1200.jpg

bhs_nyc004040262_a-987x1200.jpg

1119 ms

bhs_q003460502_a-1200x952.jpg

bhs_q003460502_a-1200x952.jpg

1112 ms

FoundersGroteskWeb-Regular.woff

FoundersGroteskWeb-Regular.woff

1176 ms

FoundersGroteskWeb-Bold.woff

FoundersGroteskWeb-Bold.woff

1182 ms

Accessibility Review

mapcollections.brooklynhistory.org accessibility score

93

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-hidden="true"] elements contain focusable descendents

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

Some elements have a [tabindex] value greater than 0

Best Practices

mapcollections.brooklynhistory.org 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

mapcollections.brooklynhistory.org 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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Mapcollections.brooklynhistory.org 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 Mapcollections.brooklynhistory.org 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

mapcollections.brooklynhistory.org

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