Tools & Wizards About Us
certain.com screenshot

Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

certain.com

Certain — AI-Powered Event Intelligence Platform

Page Load Speed

4.1 sec in total

First Response

458 ms

Resources Loaded

2.9 sec

Page Rendered

689 ms

certain.com screenshot

About Website

Click here to check amazing Certain content for United States. Otherwise, check out these important facts you probably never knew about certain.com

Turn every attendee interaction into a high-fidelity sales signal. Certain is the AI-powered event intelligence platform for enterprise marketers.

Visit certain.com

Key Findings

We analyzed Certain.com page load time and found that the first response time was 458 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

certain.com performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

39/100

10%

LCP (Largest Contentful Paint)

Value6.5 s

8/100

25%

SI (Speed Index)

Value5.4 s

56/100

10%

TBT (Total Blocking Time)

Value1,110 ms

23/100

30%

CLS (Cumulative Layout Shift)

Value1.091

1/100

15%

TTI (Time to Interactive)

Value13.0 s

12/100

10%

Network Requests Diagram

www.certain.com

458 ms

wp-emoji-release.min.js

18 ms

style.css

79 ms

prettyPhoto.css

30 ms

jquery.bxslider.css

28 ms

Our browser made a total of 134 requests to load all elements on the main page. We found that 82% of them (110 requests) were addressed to the original Certain.com, 4% (5 requests) were made to Fast.fonts.net and 3% (4 requests) were made to S7.addthis.com. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Certain.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (43%)

Content Size

2.8 MB

After Optimization

1.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Certain.com main page is 2.8 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. 70% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 227.2 kB

  • Original 287.2 kB
  • After minification 282.3 kB
  • After compression 60.0 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 227.2 kB or 79% of the original size.

Image Optimization

-8%

Potential reduce by 96.8 kB

  • Original 1.3 MB
  • After minification 1.2 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. Certain images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 718.5 kB

  • Original 1.0 MB
  • After minification 1.0 MB
  • After compression 321.9 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 718.5 kB or 69% of the original size.

CSS Optimization

-84%

Potential reduce by 187.0 kB

  • Original 221.9 kB
  • After minification 188.5 kB
  • After compression 34.9 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. Certain.com needs all CSS files to be minified and compressed as it can save up to 187.0 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 37 (29%)

Requests Now

128

After Optimization

91

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 128 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Certain. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.certain.com

www.certain.com

458 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

18 ms

style.css

style.css

79 ms

prettyPhoto.css

prettyPhoto.css

30 ms

jquery.bxslider.css

jquery.bxslider.css

28 ms

ec8083ef-3073-47ba-b181-6a354cfd3a8e.css

ec8083ef-3073-47ba-b181-6a354cfd3a8e.css

149 ms

sb-instagram.css

sb-instagram.css

48 ms

font-awesome.min.css

font-awesome.min.css

76 ms

style.css

style.css

54 ms

public-main.css

public-main.css

55 ms

light.css

light.css

54 ms

jquery.js

jquery.js

92 ms

jquery-migrate.min.js

jquery-migrate.min.js

70 ms

scripts.js

scripts.js

74 ms

jquery.prettyPhoto.js

jquery.prettyPhoto.js

74 ms

jquery.bxslider.min.js

jquery.bxslider.min.js

72 ms

jquery.firstVisitPopup.min.js

jquery.firstVisitPopup.min.js

91 ms

tweet-this-box.js

tweet-this-box.js

95 ms

grids-responsive-min.css

grids-responsive-min.css

90 ms

addthis_widget.js

addthis_widget.js

98 ms

output.css

output.css

256 ms

sb-instagram.js

sb-instagram.js

93 ms

qppr_frontend_script.min.js

qppr_frontend_script.min.js

92 ms

wp-embed.min.js

wp-embed.min.js

93 ms

pinit.js

pinit.js

103 ms

%7Bade698fa-f42f-4746-b046-20b66c6a6804%7D_pp-lib.js

%7Bade698fa-f42f-4746-b046-20b66c6a6804%7D_pp-lib.js

92 ms

css

css

75 ms

seal

seal

310 ms

logo.png

logo.png

42 ms

bg-mm-arr.png

bg-mm-arr.png

1030 ms

icons-social-w32.png

icons-social-w32.png

42 ms

home-slide11.jpg

home-slide11.jpg

1040 ms

bg-hm-vid-green2.jpg

bg-hm-vid-green2.jpg

42 ms

icon-cta-play.png

icon-cta-play.png

42 ms

hm-sol1.jpg

hm-sol1.jpg

2031 ms

hm-sol1-icon.png

hm-sol1-icon.png

46 ms

hm-sol2.jpg

hm-sol2.jpg

2032 ms

hm-sol2-icon.png

hm-sol2-icon.png

46 ms

hm-sol3.jpg

hm-sol3.jpg

46 ms

hm-sol3-icon.png

hm-sol3-icon.png

47 ms

hm-icon-q1.png

hm-icon-q1.png

47 ms

hm-icon-q2.png

hm-icon-q2.png

48 ms

1-Oracle.png

1-Oracle.png

49 ms

reed.png

reed.png

49 ms

14-comerica.png

14-comerica.png

291 ms

5-Disney.png

5-Disney.png

290 ms

national-instruments.jpg

national-instruments.jpg

292 ms

4-McKesson.png

4-McKesson.png

290 ms

6-Boeing.png

6-Boeing.png

292 ms

7-ca.png

7-ca.png

292 ms

8-NFL-NBC.png

8-NFL-NBC.png

292 ms

9-corning.png

9-corning.png

293 ms

10-tableau.png

10-tableau.png

294 ms

11-novartis.png

11-novartis.png

294 ms

12-citrix.png

12-citrix.png

295 ms

13-deloitte.png

13-deloitte.png

294 ms

15-northwestern.png

15-northwestern.png

295 ms

16-harvard.png

16-harvard.png

296 ms

17-stanford.png

17-stanford.png

296 ms

18-zuora.png

18-zuora.png

297 ms

19-aruba.png

19-aruba.png

298 ms

19-qualis.png

19-qualis.png

298 ms

astrazeneca.png

astrazeneca.png

298 ms

resource-TN-ma-cheat-sheet.jpg

resource-TN-ma-cheat-sheet.jpg

264 ms

resource-thumb-lead-scoring-guide.jpg

resource-thumb-lead-scoring-guide.jpg

263 ms

whitepaper-event-mgmt-guide.jpg

whitepaper-event-mgmt-guide.jpg

264 ms

bg-hm-partners2.jpg

bg-hm-partners2.jpg

265 ms

marketing-automation-trio.png

marketing-automation-trio.png

261 ms

demo-hm-partners2.png

demo-hm-partners2.png

261 ms

s1-oracle.png

s1-oracle.png

262 ms

s2-marketo.png

s2-marketo.png

263 ms

s3-exact-target.png

s3-exact-target.png

262 ms

s5-validar.png

s5-validar.png

263 ms

s6-Look-Book.png

s6-Look-Book.png

263 ms

s7-snapapp.png

s7-snapapp.png

294 ms

analytics.js

analytics.js

270 ms

svrGP

svrGP

355 ms

300lo.json

300lo.json

141 ms

elqCfg.min.js

elqCfg.min.js

119 ms

s8-readytalk.png

s8-readytalk.png

65 ms

s9-paypal.png

s9-paypal.png

76 ms

s10-demandbase.png

s10-demandbase.png

79 ms

s11-kapost.png

s11-kapost.png

80 ms

s12-NetProspex.png

s12-NetProspex.png

97 ms

s13-influitive.png

s13-influitive.png

100 ms

s14-zoominfo.png

s14-zoominfo.png

100 ms

s15-core-apps.png

s15-core-apps.png

111 ms

s16-COTAP.png

s16-COTAP.png

110 ms

s18-on24.png

s18-on24.png

114 ms

s19-eversnap.png

s19-eversnap.png

113 ms

s20-eventbase.png

s20-eventbase.png

114 ms

s21-printing-for-less.png

s21-printing-for-less.png

114 ms

s22-varvidlogo.png

s22-varvidlogo.png

114 ms

s23-powwow.png

s23-powwow.png

115 ms

s24-socialtables.png

s24-socialtables.png

123 ms

s25-onpeak.png

s25-onpeak.png

122 ms

s26-knowledgetree.png

s26-knowledgetree.png

131 ms

c6-metroconnections.png

c6-metroconnections.png

130 ms

demo-hm-partners3.png

demo-hm-partners3.png

140 ms

c8-HAMILTON.png

c8-HAMILTON.png

139 ms

c1-expo-logic.png

c1-expo-logic.png

148 ms

c2-performance-group.png

c2-performance-group.png

146 ms

c3-a-plus.png

c3-a-plus.png

174 ms

c4-FROSCH.png

c4-FROSCH.png

174 ms

c5-talking-point.png

c5-talking-point.png

173 ms

c7-AASB.png

c7-AASB.png

173 ms

c9-AMI.png

c9-AMI.png

173 ms

c10-CARLISE.png

c10-CARLISE.png

173 ms

c11-in2events.png

c11-in2events.png

172 ms

bcf54343-d033-41ee-bbd7-2b77df3fe7ba.woff

bcf54343-d033-41ee-bbd7-2b77df3fe7ba.woff

76 ms

14ff6081-326d-4dae-b778-d7afa66166fc.woff

14ff6081-326d-4dae-b778-d7afa66166fc.woff

97 ms

102ab74c-0e84-4fe5-a17a-b20fb643591a.woff

102ab74c-0e84-4fe5-a17a-b20fb643591a.woff

171 ms

60be5c39-863e-40cb-9434-6ebafb62ab2b.woff

60be5c39-863e-40cb-9434-6ebafb62ab2b.woff

189 ms

hm-icon-event.png

hm-icon-event.png

167 ms

7917.js

7917.js

169 ms

sh.7c7179124ea24ac6ba46caac.html

sh.7c7179124ea24ac6ba46caac.html

71 ms

pinit_main.js

pinit_main.js

109 ms

hm-icon-blog.png

hm-icon-blog.png

141 ms

collect

collect

39 ms

hm-icon-news.png

hm-icon-news.png

131 ms

hm-icon-signup.png

hm-icon-signup.png

117 ms

hm-signup-submit.png

hm-signup-submit.png

117 ms

bg-footer4000.jpg

bg-footer4000.jpg

115 ms

logo-footer.png

logo-footer.png

96 ms

certain-pci.png

certain-pci.png

95 ms

bg-pop-subscribe.jpg

bg-pop-subscribe.jpg

102 ms

bg-pop-logo.png

bg-pop-logo.png

83 ms

bg-pop-subscribe.png

bg-pop-subscribe.png

100 ms

svrGP

svrGP

80 ms

bx_loader.gif

bx_loader.gif

97 ms

controls.png

controls.png

97 ms

custom-messages.ff94d8c06a032bf68fcb.js

custom-messages.ff94d8c06a032bf68fcb.js

21 ms

layers.3643cb2e25fb91c29386.js

layers.3643cb2e25fb91c29386.js

76 ms

tinydot.gif

tinydot.gif

55 ms

Accessibility Review

certain.com accessibility score

80

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-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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.

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

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

certain.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

certain.com SEO score

82

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

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

High

Tap targets are not sized appropriately

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 Certain.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 Certain.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

certain.com

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