Tools & Wizards About Us
oldmapsonline.org screenshot

Report Summary

  • 66

    Performance

    Renders faster than
    79% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 43% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

oldmapsonline.org

Old Maps Online

Page Load Speed

9.3 sec in total

First Response

228 ms

Resources Loaded

8.7 sec

Page Rendered

293 ms

oldmapsonline.org screenshot

About Website

Visit oldmapsonline.org now to see the best up-to-date Old Maps Online content for United States and also check out these interesting facts you probably never knew about oldmapsonline.org

The easy-to-use getaway to historical maps in libraries around the world.

Visit oldmapsonline.org

Key Findings

We analyzed Oldmapsonline.org page load time and found that the first response time was 228 ms and then it took 9 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

oldmapsonline.org performance score

66

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

20/100

10%

LCP (Largest Contentful Paint)

Value4.9 s

29/100

25%

SI (Speed Index)

Value4.1 s

78/100

10%

TBT (Total Blocking Time)

Value180 ms

91/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.6 s

69/100

10%

Network Requests Diagram

oldmapsonline.org

228 ms

www.oldmapsonline.org

106 ms

minimal.css

5 ms

index.css

8 ms

jsapi

20 ms

Our browser made a total of 56 requests to load all elements on the main page. We found that 23% of them (13 requests) were addressed to the original Oldmapsonline.org, 16% (9 requests) were made to Maps.google.com and 9% (5 requests) were made to Klokantech-0.tileserver.com. The less responsive or slowest element that took the longest time to load (8.3 sec) relates to the external source Freegeoip.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 521.0 kB (39%)

Content Size

1.3 MB

After Optimization

797.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Oldmapsonline.org main page is 1.3 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. 60% of websites need less resources to load. Javascripts take 668.1 kB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 65.3 kB

  • Original 72.6 kB
  • After minification 70.1 kB
  • After compression 7.3 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 65.3 kB or 90% of the original size.

Image Optimization

-2%

Potential reduce by 12.9 kB

  • Original 578.1 kB
  • After minification 565.2 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. Old Maps Online images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 442.8 kB

  • Original 668.1 kB
  • After minification 668.1 kB
  • After compression 225.3 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 442.8 kB or 66% of the original size.

CSS Optimization

-19%

Potential reduce by 31 B

  • Original 160 B
  • After minification 140 B
  • After compression 129 B

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. Oldmapsonline.org needs all CSS files to be minified and compressed as it can save up to 31 B or 19% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (33%)

Requests Now

48

After Optimization

32

  • Images
  • JavaScript
  • CSS

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Old Maps Online. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

oldmapsonline.org

oldmapsonline.org

228 ms

www.oldmapsonline.org

www.oldmapsonline.org

106 ms

minimal.css

minimal.css

5 ms

index.css

index.css

8 ms

jsapi

jsapi

20 ms

js

js

45 ms

index.js

index.js

6 ms

common.js

common.js

72 ms

map.js

map.js

72 ms

oldmapsonline-logo-welcome.png

oldmapsonline-logo-welcome.png

70 ms

analytics.js

analytics.js

57 ms

repositories.json

repositories.json

393 ms

8322 ms

overlay.js

overlay.js

71 ms

util.js

util.js

73 ms

geocoder.js

geocoder.js

71 ms

googleplay.png

googleplay.png

66 ms

macstore.png

macstore.png

69 ms

oldmapsonline-logo-head.png

oldmapsonline-logo-head.png

70 ms

era-background.png

era-background.png

66 ms

droidsans.ttf

droidsans.ttf

65 ms

omo.woff

omo.woff

68 ms

onion.js

onion.js

46 ms

openhand_8_8.cur

openhand_8_8.cur

40 ms

collect

collect

59 ms

controls.js

controls.js

46 ms

stats.js

stats.js

73 ms

transparent.png

transparent.png

69 ms

1.png

1.png

126 ms

2.png

2.png

70 ms

2.png

2.png

98 ms

1.png

1.png

73 ms

grid_dust.png

grid_dust.png

64 ms

1.png

1.png

64 ms

3.png

3.png

64 ms

0.png

0.png

65 ms

3.png

3.png

93 ms

1.png

1.png

108 ms

0.png

0.png

111 ms

0.png

0.png

106 ms

2.png

2.png

117 ms

0.png

0.png

119 ms

3.png

3.png

126 ms

0.png

0.png

65 ms

3.png

3.png

66 ms

2.png

2.png

67 ms

css

css

43 ms

google4.png

google4.png

39 ms

mapcnt6.png

mapcnt6.png

39 ms

QHD8zigcbDB8aPfIoaupKOvvDin1pK8aKteLpeZ5c0A.ttf

QHD8zigcbDB8aPfIoaupKOvvDin1pK8aKteLpeZ5c0A.ttf

22 ms

RxZJdnzeo3R5zSexge8UUSZ2oysoEQEeKwjgmXLRnTc.ttf

RxZJdnzeo3R5zSexge8UUSZ2oysoEQEeKwjgmXLRnTc.ttf

34 ms

Hgo13k-tfSpn0qi1SFdUfSZ2oysoEQEeKwjgmXLRnTc.ttf

Hgo13k-tfSpn0qi1SFdUfSZ2oysoEQEeKwjgmXLRnTc.ttf

39 ms

d-6IYplOFocCacKzxwXSOCZ2oysoEQEeKwjgmXLRnTc.ttf

d-6IYplOFocCacKzxwXSOCZ2oysoEQEeKwjgmXLRnTc.ttf

39 ms

AuthenticationService.Authenticate

AuthenticationService.Authenticate

52 ms

QuotaService.RecordEvent

QuotaService.RecordEvent

13 ms

QuotaService.RecordEvent

QuotaService.RecordEvent

19 ms

Accessibility Review

oldmapsonline.org accessibility score

76

Accessibility Issues

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

Tables and lists

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

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

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

Best Practices

oldmapsonline.org best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

oldmapsonline.org SEO score

92

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

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 Oldmapsonline.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 Oldmapsonline.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

oldmapsonline.org

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