2.1 sec in total
79 ms
1 sec
968 ms
Welcome to usacoinbook.com homepage info - get ready to check USA Coin Book best content for United States right away, or after learning these important things about usacoinbook.com
USA Coin Book - An easy and simple way to buy, sell, auction off and keep track of coins online. Look up coin prices and values to see how much your collection is worth. Connect with dealers, other co...
Visit usacoinbook.comWe analyzed Usacoinbook.com page load time and found that the first response time was 79 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
usacoinbook.com performance score
name
value
score
weighting
Value1.7 s
93/100
10%
Value3.0 s
79/100
25%
Value5.7 s
51/100
10%
Value2,560 ms
4/100
30%
Value0.309
38/100
15%
Value15.0 s
8/100
10%
79 ms
184 ms
16 ms
81 ms
12 ms
Our browser made a total of 71 requests to load all elements on the main page. We found that 52% of them (37 requests) were addressed to the original Usacoinbook.com, 7% (5 requests) were made to Tpc.googlesyndication.com and 7% (5 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (708 ms) belongs to the original domain Usacoinbook.com.
Page size can be reduced by 317.8 kB (34%)
932.9 kB
615.1 kB
In fact, the total size of Usacoinbook.com main page is 932.9 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. 55% of websites need less resources to load. Images take 452.0 kB which makes up the majority of the site volume.
Potential reduce by 123.5 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 123.5 kB or 82% of the original size.
Potential reduce by 9.7 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. USA Coin Book images are well optimized though.
Potential reduce by 76.1 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 76.1 kB or 38% of the original size.
Potential reduce by 108.5 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. Usacoinbook.com needs all CSS files to be minified and compressed as it can save up to 108.5 kB or 83% of the original size.
Number of requests can be reduced by 25 (37%)
67
42
The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of USA Coin Book. 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.
usacoinbook.com
79 ms
www.usacoinbook.com
184 ms
bootstrap.min.css
16 ms
adsbygoogle.js
81 ms
pinit.js
12 ms
jquery.min.js
79 ms
bootstrap.min.js
9 ms
ga.js
124 ms
quant.js
106 ms
follow_button.html
100 ms
pinit_fg_en_rect_red_20.png
85 ms
afstracka.cgi
173 ms
paper.jpg
87 ms
logo.png
87 ms
us-bullion-eagle-coins.jpg
86 ms
1407537058f2585263b7d129n.png
88 ms
1449703741a9cb15b5d22800n.jpeg
88 ms
1449629049553685ab96892dn.jpeg
708 ms
14495638770cabb523818375n.jpeg
144 ms
14495244298e96a53807ef4fn.jpeg
145 ms
1449445635302231bd62ab98n.jpeg
146 ms
1414260989f79dfb77829561n.jpeg
147 ms
14141736666202b6aff0bcc3n.jpeg
147 ms
1456785726062906ccb985e6n.jpeg
147 ms
14267035417e581e90d1794an.jpeg
148 ms
14267034396fc813cb1b10aan.jpeg
149 ms
14267033333ddfe3b73e4eb8n.jpeg
150 ms
1426702962179e14552b225bn.jpeg
150 ms
145678558172b75796f56fc4n.jpeg
151 ms
make-an-offer.jpg
150 ms
1456785560ecfaced70e78bfn.jpeg
152 ms
1426702623671bf5b603fdedn.jpeg
152 ms
1426633870a6045ec002bc54n.jpeg
154 ms
14396718850127b292363e6bn.jpeg
153 ms
14305032201d56fccf06d060n.jpeg
154 ms
14266332424636be8d748861n.jpeg
155 ms
14266331437d19029c0238ban.jpeg
155 ms
1456785102130a44277923f5n.jpeg
156 ms
1456785108bc38b0abfe58c3n.jpeg
161 ms
1426632979e80ccce5bf8f7an.jpeg
157 ms
1426632794cd870197d85ad1n.jpeg
159 ms
facebook.jpg
156 ms
twitter.jpg
157 ms
linkedin.jpg
158 ms
googleplus.jpg
159 ms
jot
211 ms
info.json
208 ms
pinit_main.js
126 ms
glyphicons-halflings-regular.woff
80 ms
ca-pub-8060592452967415.js
125 ms
zrt_lookup.html
122 ms
show_ads_impl.js
129 ms
pixel;r=1516028058;a=p-e7Kweqfng5bG6;fpan=1;fpa=P0-185723581-1456786900578;ns=0;ce=1;cm=;je=0;sr=1024x768x32;enc=n;dst=0;et=1456786900578;tzo=-180;ref=;url=http%3A%2F%2Fwww.usacoinbook.com%2F;ogl=title.USA%20Coin%20Book%2Ctype.website%2Curl.http%3A%2F%2Fwww%252Eusacoinbook%252Ecom%2F%2Cimage.http%3A%2F%2Fwww%252Eusacoinbook%252Ecom%2Fusacoinbook-share%252Epng%2Cimage%3Awidth.300%2Cimage%3Aheight.300%2Cdescription.USA%20Coin%20Book%20-%20A%20numismatic%20haven%20for%20coin%20collectors%20and%20US%20coins%20-%20Look%20up%20co%2Cupdated_time.1456786900
56 ms
__utm.gif
73 ms
like.php
241 ms
connect.cgi
164 ms
count.json
96 ms
ads
217 ms
osd.js
26 ms
ads
238 ms
vpc6VNjRPXV.js
61 ms
LVx-xkvaJ0b.png
66 ms
m_js_controller.js
33 ms
abg.js
57 ms
favicon
86 ms
googlelogo_color_112x36dp.png
76 ms
nessie_icon_tiamat_white.png
50 ms
imgad
50 ms
s
37 ms
x_button_blue2.png
20 ms
E4WYPs_lNJIuXrWpTsOcc3FIG36RfI0ERc0srw5QW9Y.js
13 ms
usacoinbook.com accessibility score
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
[aria-*] attributes do not match their roles
Names and labels
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.
Impact
Issue
Buttons do not have an accessible name
<frame> or <iframe> elements do not have a title
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
usacoinbook.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
usacoinbook.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
Document uses legible font sizes
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Usacoinbook.com 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 Usacoinbook.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.
usacoinbook.com
Open Graph data is detected on the main page of USA Coin Book. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: