1.8 sec in total
94 ms
1.4 sec
311 ms
Welcome to callernumber.com homepage info - get ready to check Callernumber best content for United States right away, or after learning these important things about callernumber.com
Check phone numbers against our people database, quicker and easier than using a phone book. See who owns the number with Instant Checkmate.
Visit callernumber.comWe analyzed Callernumber.com page load time and found that the first response time was 94 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.
callernumber.com performance score
name
value
score
weighting
Value2.5 s
69/100
10%
Value4.4 s
39/100
25%
Value3.7 s
85/100
10%
Value1,580 ms
12/100
30%
Value0
100/100
15%
Value9.2 s
32/100
10%
94 ms
160 ms
266 ms
45 ms
284 ms
Our browser made a total of 50 requests to load all elements on the main page. We found that 4% of them (2 requests) were addressed to the original Callernumber.com, 64% (32 requests) were made to Assets.phone.instantcheckmate.com and 6% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (284 ms) relates to the external source Tracking.instantcheckmate.com.
Page size can be reduced by 172.5 kB (14%)
1.2 MB
1.0 MB
In fact, the total size of Callernumber.com main page is 1.2 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 993.7 kB which makes up the majority of the site volume.
Potential reduce by 19.5 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. This page needs HTML code to be minified as it can gain 3.4 kB, which is 13% 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 19.5 kB or 76% of the original size.
Potential reduce by 39.4 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. Callernumber images are well optimized though.
Potential reduce by 73.3 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 73.3 kB or 48% of the original size.
Potential reduce by 40.3 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. Callernumber.com needs all CSS files to be minified and compressed as it can save up to 40.3 kB or 84% of the original size.
Number of requests can be reduced by 9 (23%)
40
31
The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Callernumber. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.
callernumber.com
94 ms
www.callernumber.com
160 ms
callerscoop.com
266 ms
www.callerscoop.com
45 ms
tracking.instantcheckmate.com
284 ms
www.phone.instantcheckmate.com
90 ms
kr-02.css
70 ms
jh-01.css
63 ms
getseal
59 ms
jquery.min.js
56 ms
kr-02.js
64 ms
conversion.js
72 ms
css
58 ms
analytics.js
62 ms
instant-checkmate-logo-400px.png
57 ms
boy-with-hat.jpg
78 ms
mark.png
73 ms
phone-icon.png
73 ms
quotes.png
83 ms
cathy-color.png
86 ms
cathy-bw.png
85 ms
sam-color.png
83 ms
sam-bw.png
84 ms
brianna-color.png
90 ms
brianna-bw.png
89 ms
icon-double-caret-up.png
88 ms
ashley-from-tinder-2.jpg
92 ms
detailed-results-icon.png
88 ms
home-info.png
91 ms
search-arrow-right.png
94 ms
macbook-pro.png
142 ms
magnifying-glass-icon.png
94 ms
report-preview-screenshot.png
129 ms
anonymous-lock-icon.png
95 ms
bbb-seal-20140214.png
118 ms
couple-texting-on-phones.jpg
128 ms
white-phone.png
127 ms
white-heart.png
128 ms
phone-new.png
145 ms
facebook.png
142 ms
twitter.png
142 ms
google.png
141 ms
linked-in.png
140 ms
v0SdcGFAl2aezM9Vq_aFTQ.ttf
90 ms
nj47mAZe0mYUIySgfn0wpQ.ttf
114 ms
DvlFBScY1r-FMtZSYIYoYw.ttf
128 ms
collect
20 ms
collect
25 ms
collect
74 ms
43 ms
callernumber.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
callernumber.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
callernumber.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Page is blocked from indexing
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 Callernumber.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 Callernumber.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.
callernumber.com
Open Graph data is detected on the main page of Callernumber. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: