Tools & Wizards About Us
ocerti.com screenshot

Report Summary

  • 11

    Performance

    Renders faster than
    24% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

ocerti.com

Blinds | Up to 70% Off Made To Measure Window Blinds | Blinds Direct

Page Load Speed

2.8 sec in total

First Response

156 ms

Resources Loaded

2.1 sec

Page Rendered

594 ms

ocerti.com screenshot

About Website

Welcome to ocerti.com homepage info - get ready to check Ocerti best content right away, or after learning these important things about ocerti.com

Discover the fantastic range of blinds for windows at Blinds Direct. With up to 70% off high street prices on all of our made to measure blinds, plus fast delivery!

Visit ocerti.com

Key Findings

We analyzed Ocerti.com page load time and found that the first response time was 156 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

ocerti.com performance score

11

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.8 s

5/100

10%

LCP (Largest Contentful Paint)

Value7.3 s

5/100

25%

SI (Speed Index)

Value7.9 s

23/100

10%

TBT (Total Blocking Time)

Value3,120 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.288

42/100

15%

TTI (Time to Interactive)

Value18.8 s

3/100

10%

Network Requests Diagram

ocerti.com

156 ms

www.blindsdirect.co.uk

244 ms

main.css

40 ms

home.css

38 ms

bugsnag.min.js

64 ms

Our browser made a total of 148 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Ocerti.com, 75% (111 requests) were made to Img.interiorgoodsdirect.com and 11% (16 requests) were made to Blindsdirect.co.uk. The less responsive or slowest element that took the longest time to load (630 ms) relates to the external source Img.interiorgoodsdirect.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 346.5 kB (10%)

Content Size

3.3 MB

After Optimization

3.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ocerti.com main page is 3.3 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. 70% of websites need less resources to load. Images take 2.8 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 342.7 kB

  • Original 380.6 kB
  • After minification 341.2 kB
  • After compression 37.9 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 342.7 kB or 90% of the original size.

Image Optimization

-0%

Potential reduce by 3.7 kB

  • Original 2.8 MB
  • After minification 2.8 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. Ocerti images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 64 B

  • Original 144.7 kB
  • After minification 144.7 kB
  • After compression 144.6 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 20 B

  • Original 30.3 kB
  • After minification 30.3 kB
  • After compression 30.2 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. Ocerti.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 29 (21%)

Requests Now

138

After Optimization

109

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 138 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ocerti. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

ocerti.com

ocerti.com

156 ms

www.blindsdirect.co.uk

www.blindsdirect.co.uk

244 ms

main.css

main.css

40 ms

home.css

home.css

38 ms

bugsnag.min.js

bugsnag.min.js

64 ms

js

js

81 ms

OtAutoBlock.js

OtAutoBlock.js

107 ms

otSDKStub.js

otSDKStub.js

149 ms

iframe_api

iframe_api

63 ms

klaviyo.js

klaviyo.js

79 ms

b46601530e.js

b46601530e.js

127 ms

main.js

main.js

51 ms

home.js

home.js

78 ms

tracking.js

tracking.js

126 ms

pa-5bf7bb9ecea07b0016000543.js

pa-5bf7bb9ecea07b0016000543.js

82 ms

vcd15cbe7772f49c399c6a5babf22c1241717689176015

vcd15cbe7772f49c399c6a5babf22c1241717689176015

127 ms

gtm.js

gtm.js

77 ms

0190e533-9ffb-72ca-a189-ea8b13e2446d.json

0190e533-9ffb-72ca-a189-ea8b13e2446d.json

430 ms

bg_logo_white.svg

bg_logo_white.svg

479 ms

BD_Desktop_FD_1726066615.jpg

BD_Desktop_FD_1726066615.jpg

454 ms

get_types

get_types

198 ms

BD_arrow-R-white.svg

BD_arrow-R-white.svg

159 ms

BD_arrow-R-mako.svg

BD_arrow-R-mako.svg

164 ms

BD_icon_expand_mako.svg

BD_icon_expand_mako.svg

163 ms

BD_icon_collapse_mako.svg

BD_icon_collapse_mako.svg

161 ms

BD_icon_get_help_white.svg

BD_icon_get_help_white.svg

158 ms

BD_icon_expand_white.svg

BD_icon_expand_white.svg

161 ms

BD_icon_collapse_white.svg

BD_icon_collapse_white.svg

185 ms

BD_icon_track_my_order_white.svg

BD_icon_track_my_order_white.svg

182 ms

BD_icon_measuring_and_fiting_guides_white.svg

BD_icon_measuring_and_fiting_guides_white.svg

186 ms

BD_icon_log_in_white.svg

BD_icon_log_in_white.svg

183 ms

BD_icon_register_white.svg

BD_icon_register_white.svg

184 ms

BD_icon_white.svg

BD_icon_white.svg

188 ms

BD_follow_us_text.svg

BD_follow_us_text.svg

224 ms

x-logo-primary.svg

x-logo-primary.svg

228 ms

blog_icon.svg

blog_icon.svg

225 ms

white-arrow-prev.png

white-arrow-prev.png

257 ms

white-arrow-next.png

white-arrow-next.png

228 ms

shop-by-woodens.jpg

shop-by-woodens.jpg

385 ms

BD_20_sbp.svg

BD_20_sbp.svg

229 ms

shop-by-romans.jpg

shop-by-romans.jpg

303 ms

shop-by-rollers.jpg

shop-by-rollers.jpg

321 ms

shop-by-verticals.jpg

shop-by-verticals.jpg

319 ms

shop-by-vision.jpg

shop-by-vision.jpg

259 ms

shop-by-roof-blinds.jpg

shop-by-roof-blinds.jpg

292 ms

shop-by-pf-woodens.jpg

shop-by-pf-woodens.jpg

297 ms

shop-by-shutters.jpg

shop-by-shutters.jpg

423 ms

shop-by-venetians.jpg

shop-by-venetians.jpg

408 ms

shop-by-curtains.jpg

shop-by-curtains.jpg

409 ms

shop-by-pleated.jpg

shop-by-pleated.jpg

370 ms

shop-by-electric.jpg

shop-by-electric.jpg

358 ms

shop-by-poles.jpg

shop-by-poles.jpg

393 ms

shop-by-allusion.jpg

shop-by-allusion.jpg

488 ms

shop-by-panel.jpg

shop-by-panel.jpg

499 ms

shop-by-cushions.jpg

shop-by-cushions.jpg

533 ms

shop-by-lamp-shades.jpg

shop-by-lamp-shades.jpg

449 ms

BD_Direct_From_The_Manufacturer_1654680739.jpg

BD_Direct_From_The_Manufacturer_1654680739.jpg

137 ms

BD_Timeless_Wooden_Blinds_1654680779.jpg

BD_Timeless_Wooden_Blinds_1654680779.jpg

144 ms

thermaldesktop_1664444379.jpg

thermaldesktop_1664444379.jpg

161 ms

Lato-Regular.ttf

Lato-Regular.ttf

159 ms

Lato-Bold.ttf

Lato-Bold.ttf

157 ms

igd.woff

igd.woff

159 ms

Lato-Italic.ttf

Lato-Italic.ttf

160 ms

Lato-LightItalic.ttf

Lato-LightItalic.ttf

201 ms

d

d

143 ms

sessions.bugsnag.com

sessions.bugsnag.com

197 ms

136 ms

sddefault.jpg

sddefault.jpg

194 ms

ajax_cart_view

ajax_cart_view

277 ms

location

location

149 ms

sddefault.jpg

sddefault.jpg

179 ms

touch-gesture-icon.svg

touch-gesture-icon.svg

296 ms

living_room.jpg

living_room.jpg

282 ms

sbr_living_room_white.svg

sbr_living_room_white.svg

288 ms

bedroom.jpg

bedroom.jpg

336 ms

sbr_bedroom_white.svg

sbr_bedroom_white.svg

302 ms

kitchen.jpg

kitchen.jpg

346 ms

sbr_kitchen_white.svg

sbr_kitchen_white.svg

318 ms

bathroom.jpg

bathroom.jpg

420 ms

sbr_bathroom_white.svg

sbr_bathroom_white.svg

321 ms

dining_room.jpg

dining_room.jpg

358 ms

sbr_dining_room_white.svg

sbr_dining_room_white.svg

342 ms

kids_room.jpg

kids_room.jpg

431 ms

sbr_kids_room_white.svg

sbr_kids_room_white.svg

335 ms

conservatory.jpg

conservatory.jpg

418 ms

sbr_conservatory_white.svg

sbr_conservatory_white.svg

330 ms

home_office.jpg

home_office.jpg

322 ms

sbr_office_white.svg

sbr_office_white.svg

331 ms

notify.bugsnag.com

notify.bugsnag.com

85 ms

notify.bugsnag.com

notify.bugsnag.com

105 ms

white.jpg

white.jpg

435 ms

grey.jpg

grey.jpg

421 ms

natural.jpg

natural.jpg

345 ms

black.jpg

black.jpg

371 ms

blue.jpg

blue.jpg

364 ms

green.jpg

green.jpg

369 ms

pink.jpg

pink.jpg

378 ms

yellow.jpg

yellow.jpg

389 ms

red.jpg

red.jpg

411 ms

brown.jpg

brown.jpg

333 ms

orange.jpg

orange.jpg

394 ms

purple.jpg

purple.jpg

604 ms

cream.jpg

cream.jpg

630 ms

beige.jpg

beige.jpg

345 ms

teal.jpg

teal.jpg

328 ms

gold.jpg

gold.jpg

431 ms

motorisation_icon_white.svg

motorisation_icon_white.svg

340 ms

roller-blinds.svg

roller-blinds.svg

340 ms

wooden-blinds.svg

wooden-blinds.svg

343 ms

roman-blinds.svg

roman-blinds.svg

330 ms

double-roller-blinds.svg

double-roller-blinds.svg

329 ms

day-night-blinds.svg

day-night-blinds.svg

324 ms

panel_and_allusion_blinds_small.png

panel_and_allusion_blinds_small.png

467 ms

BD_5_Year_Guarantee.svg

BD_5_Year_Guarantee.svg

330 ms

Panel_and_allusion_blinds_tablet.jpg

Panel_and_allusion_blinds_tablet.jpg

458 ms

tv_icon.svg

tv_icon.svg

347 ms

product_group.jpg

product_group.jpg

347 ms

icon_union_jack.svg

icon_union_jack.svg

353 ms

bd_logo.svg

bd_logo.svg

354 ms

good_homes.svg

good_homes.svg

356 ms

home_style.svg

home_style.svg

354 ms

elle_decoration.svg

elle_decoration.svg

357 ms

william-morris.jpg

william-morris.jpg

358 ms

sustainable-solutions-collection.jpg

sustainable-solutions-collection.jpg

328 ms

sage_collection.jpg

sage_collection.jpg

337 ms

cottagecore-collection.jpg

cottagecore-collection.jpg

352 ms

maximal_impact_collection.jpg

maximal_impact_collection.jpg

315 ms

contemporary_classics.jpg

contemporary_classics.jpg

333 ms

madagascar_collection.jpg

madagascar_collection.jpg

330 ms

natural_balance_collection.jpg

natural_balance_collection.jpg

321 ms

lavish_luxe_collection.jpg

lavish_luxe_collection.jpg

325 ms

pattern_play_collection.jpg

pattern_play_collection.jpg

324 ms

measuring_guide.svg

measuring_guide.svg

316 ms

fitting_instruction.svg

fitting_instruction.svg

307 ms

blog.svg

blog.svg

302 ms

chat.svg

chat.svg

266 ms

spam.gif

spam.gif

267 ms

express-del.png

express-del.png

258 ms

ie.svg

ie.svg

356 ms

gb.svg

gb.svg

253 ms

paypal-grey.svg

paypal-grey.svg

260 ms

visa-grey.svg

visa-grey.svg

246 ms

master-grey.svg

master-grey.svg

250 ms

amex-grey.svg

amex-grey.svg

240 ms

apple-pay-grey.svg

apple-pay-grey.svg

239 ms

igd-footer-logo.png

igd-footer-logo.png

216 ms

signup-image.jpg

signup-image.jpg

313 ms

icon_privacy_prim.svg

icon_privacy_prim.svg

206 ms

Accessibility Review

ocerti.com accessibility score

98

Accessibility Issues

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.

Best Practices

ocerti.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

ocerti.com SEO score

91

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

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 Ocerti.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 Ocerti.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

ocerti.com

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