Tools & Wizards About Us
callerdb.com screenshot

Report Summary

  • 66

    Performance

    Renders faster than
    79% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

callerdb.com

CallerDB.com - The Caller Database

Page Load Speed

474 ms in total

First Response

51 ms

Resources Loaded

338 ms

Page Rendered

85 ms

callerdb.com screenshot

About Website

Visit callerdb.com now to see the best up-to-date CallerDB content for United States and also check out these interesting facts you probably never knew about callerdb.com

Who's calling? Find out or contribute to the database! Flag numbers owned by telemarketers, scammers and other illegitimate callers.

Visit callerdb.com

Key Findings

We analyzed Callerdb.com page load time and found that the first response time was 51 ms and then it took 423 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

callerdb.com performance score

66

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.1 s

99/100

10%

LCP (Largest Contentful Paint)

Value2.0 s

97/100

25%

SI (Speed Index)

Value2.9 s

95/100

10%

TBT (Total Blocking Time)

Value1,810 ms

9/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.4 s

49/100

10%

Network Requests Diagram

callerdb.com

51 ms

callerdb.com

56 ms

adsbygoogle.js

170 ms

ga.js

28 ms

logo4.png

12 ms

Our browser made a total of 6 requests to load all elements on the main page. We found that 67% of them (4 requests) were addressed to the original Callerdb.com, 17% (1 request) were made to Pagead2.googlesyndication.com and 17% (1 request) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (170 ms) relates to the external source Pagead2.googlesyndication.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 133.9 kB (60%)

Content Size

224.3 kB

After Optimization

90.5 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Callerdb.com main page is 224.3 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Javascripts take 205.9 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 9.7 kB

  • Original 14.3 kB
  • After minification 14.1 kB
  • After compression 4.6 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. 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 9.7 kB or 68% of the original size.

Image Optimization

-2%

Potential reduce by 72 B

  • Original 4.1 kB
  • After minification 4.0 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. CallerDB images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 124.1 kB

  • Original 205.9 kB
  • After minification 205.9 kB
  • After compression 81.9 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 124.1 kB or 60% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

4

After Optimization

4

  • Images
  • JavaScript

The browser has sent 4 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CallerDB. According to our analytics all requests are already optimized.

Network Requests Diagram

callerdb.com

callerdb.com

51 ms

callerdb.com

callerdb.com

56 ms

adsbygoogle.js

adsbygoogle.js

170 ms

ga.js

ga.js

28 ms

logo4.png

logo4.png

12 ms

searchglass.png

searchglass.png

22 ms

Accessibility Review

callerdb.com accessibility score

94

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

High

Links do not have a discernible name

Best Practices

callerdb.com 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

Page has valid source maps

SEO Factors

callerdb.com SEO score

92

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Links do not have descriptive text

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 Callerdb.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 Callerdb.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.

Social Sharing Optimization

callerdb.com

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