Tools & Wizards About Us
delval.com screenshot

Report Summary

  • 8

    Performance

    Renders faster than
    22% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

delval.com

Delval Equipment • Boiler Room Equipment & Parts in PA

Page Load Speed

6.8 sec in total

First Response

1.5 sec

Resources Loaded

4.5 sec

Page Rendered

782 ms

delval.com screenshot

About Website

Click here to check amazing Delval content. Otherwise, check out these important facts you probably never knew about delval.com

Delval offers boiler room equipment, service, rental and support for Commonwealth of PA, Delaware, Maryland, and parts of surrounding area.

Visit delval.com

Key Findings

We analyzed Delval.com page load time and found that the first response time was 1.5 sec and then it took 5.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

delval.com performance score

8

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.2 s

3/100

10%

LCP (Largest Contentful Paint)

Value14.6 s

0/100

25%

SI (Speed Index)

Value13.8 s

1/100

10%

TBT (Total Blocking Time)

Value1,290 ms

18/100

30%

CLS (Cumulative Layout Shift)

Value0.537

14/100

15%

TTI (Time to Interactive)

Value23.1 s

1/100

10%

Network Requests Diagram

delval.com

1510 ms

style.min.css

376 ms

styles.min.css

251 ms

style.css

380 ms

all.css

265 ms

Our browser made a total of 110 requests to load all elements on the main page. We found that 87% of them (96 requests) were addressed to the original Delval.com, 5% (5 requests) were made to Google.com and 5% (5 requests) were made to Gstatic.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Delval.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.0 MB (19%)

Content Size

5.5 MB

After Optimization

4.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Delval.com main page is 5.5 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 4.1 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 171.2 kB

  • Original 198.8 kB
  • After minification 188.1 kB
  • After compression 27.6 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 171.2 kB or 86% of the original size.

Image Optimization

-1%

Potential reduce by 53.4 kB

  • Original 4.1 MB
  • After minification 4.0 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. Delval images are well optimized though.

JavaScript Optimization

-45%

Potential reduce by 276.6 kB

  • Original 612.9 kB
  • After minification 576.7 kB
  • After compression 336.4 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 276.6 kB or 45% of the original size.

CSS Optimization

-83%

Potential reduce by 526.9 kB

  • Original 634.6 kB
  • After minification 572.9 kB
  • After compression 107.7 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. Delval.com needs all CSS files to be minified and compressed as it can save up to 526.9 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 44 (44%)

Requests Now

101

After Optimization

57

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 101 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Delval. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 33 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

delval.com

delval.com

1510 ms

style.min.css

style.min.css

376 ms

styles.min.css

styles.min.css

251 ms

style.css

style.css

380 ms

all.css

all.css

265 ms

slick.css

slick.css

211 ms

slick-lightbox.css

slick-lightbox.css

211 ms

woocommerce.css

woocommerce.css

488 ms

jquery.min.js

jquery.min.js

421 ms

jquery-migrate.min.js

jquery-migrate.min.js

313 ms

jquery.blockUI.min.js

jquery.blockUI.min.js

331 ms

add-to-cart.min.js

add-to-cart.min.js

376 ms

js.cookie.min.js

js.cookie.min.js

398 ms

woocommerce.min.js

woocommerce.min.js

436 ms

js

js

65 ms

wc-blocks.css

wc-blocks.css

311 ms

formreset.min.css

formreset.min.css

313 ms

formsmain.min.css

formsmain.min.css

336 ms

readyclass.min.css

readyclass.min.css

523 ms

browsers.min.css

browsers.min.css

524 ms

sourcebuster.min.js

sourcebuster.min.js

524 ms

order-attribution.min.js

order-attribution.min.js

525 ms

navigation.js

navigation.js

525 ms

jquery.responsiveTabs.min.js

jquery.responsiveTabs.min.js

526 ms

slick.js

slick.js

529 ms

slick-lightbox.min.js

slick-lightbox.min.js

525 ms

custom.js

custom.js

526 ms

api.js

api.js

37 ms

dom-ready.min.js

dom-ready.min.js

526 ms

hooks.min.js

hooks.min.js

527 ms

i18n.min.js

i18n.min.js

528 ms

a11y.min.js

a11y.min.js

527 ms

jquery.json.min.js

jquery.json.min.js

527 ms

gravityforms.min.js

gravityforms.min.js

528 ms

conditional_logic.min.js

conditional_logic.min.js

537 ms

api.js

api.js

56 ms

placeholders.jquery.min.js

placeholders.jquery.min.js

564 ms

utils.min.js

utils.min.js

570 ms

vendor-theme.min.js

vendor-theme.min.js

565 ms

scripts-theme.min.js

scripts-theme.min.js

580 ms

frontend-legacy.min.js

frontend-legacy.min.js

493 ms

constant-contact.svg

constant-contact.svg

212 ms

Delval-logo-update-21Jun2020-02-01.svg

Delval-logo-update-21Jun2020-02-01.svg

213 ms

2024-Delval-Website-1600x800-1.jpg

2024-Delval-Website-1600x800-1.jpg

647 ms

delval-warehouses-banner.jpg

delval-warehouses-banner.jpg

374 ms

Web-Banner-CLearFire.jpg

Web-Banner-CLearFire.jpg

401 ms

Web-Banner-Water-Treatment.jpg

Web-Banner-Water-Treatment.jpg

636 ms

2944-e1620151441801-300x300.jpeg

2944-e1620151441801-300x300.jpeg

372 ms

CFC-E-firetube-condensing-boilers-and-Intellihot-instantaneous-hot-water-heaters-300x300.jpg

CFC-E-firetube-condensing-boilers-and-Intellihot-instantaneous-hot-water-heaters-300x300.jpg

373 ms

Steam-Boilers-Utility-Plant-e1604695505100-300x300.jpg

Steam-Boilers-Utility-Plant-e1604695505100-300x300.jpg

374 ms

MD-pharmaceutical-company-1-e1602178827287-300x300.jpg

MD-pharmaceutical-company-1-e1602178827287-300x300.jpg

375 ms

PA-River-300p.jpg

PA-River-300p.jpg

375 ms

Hawk-Control-Upgrade-300.jpg

Hawk-Control-Upgrade-300.jpg

385 ms

check-your-boilers-back-up-fuel-300x200-1.jpg

check-your-boilers-back-up-fuel-300x200-1.jpg

388 ms

prepare-your-boiler-for-winter-in-15-steps-300x200-1.jpg

prepare-your-boiler-for-winter-in-15-steps-300x200-1.jpg

635 ms

burner-and-control-conversion-on-a-Burnham-boiler-Cleaver-Brooks-Hawk-4000-Controls-300x500-1.jpg

burner-and-control-conversion-on-a-Burnham-boiler-Cleaver-Brooks-Hawk-4000-Controls-300x500-1.jpg

539 ms

20160812_124235_resized-Rental-500x300-1.jpg

20160812_124235_resized-Rental-500x300-1.jpg

539 ms

20190314_095146-JM-Full-Retube-Major-Production-Facility-in-PA-300x500-1.jpg

20190314_095146-JM-Full-Retube-Major-Production-Facility-in-PA-300x500-1.jpg

541 ms

Water-Treatment-1-300x500-1.jpg

Water-Treatment-1-300x500-1.jpg

542 ms

advanced-radiant-systems.jpg

advanced-radiant-systems.jpg

541 ms

advantage-controls.jpg

advantage-controls.jpg

542 ms

advanced-mechanical-technologies.jpg

advanced-mechanical-technologies.jpg

542 ms

autoflame.jpg

autoflame.jpg

542 ms

bfs-industries.jpg

bfs-industries.jpg

546 ms

canon-boiler-works-inc.jpg

canon-boiler-works-inc.jpg

545 ms

centrotherm.jpg

centrotherm.jpg

544 ms

cleaver-brooks.jpg

cleaver-brooks.jpg

545 ms

nebraska-boiler-resized.jpg

nebraska-boiler-resized.jpg

546 ms

columbia-boiler.jpg

columbia-boiler.jpg

609 ms

critical-fuel-systems.jpg

critical-fuel-systems.jpg

610 ms

Arimo-Regular.otf

Arimo-Regular.otf

754 ms

fa-brands-400.woff

fa-brands-400.woff

577 ms

fa-solid-900.woff

fa-solid-900.woff

575 ms

fa-regular-400.woff

fa-regular-400.woff

574 ms

Arimo-Bold.otf

Arimo-Bold.otf

572 ms

Delval-Logo-Color-NEW-300-x-150.jpg

Delval-Logo-Color-NEW-300-x-150.jpg

562 ms

dftinc.jpg

dftinc.jpg

656 ms

etter-engineering.jpg

etter-engineering.jpg

655 ms

fireye.jpg

fireye.jpg

653 ms

grundfos.jpg

grundfos.jpg

498 ms

Profire-Logo-2.jpg

Profire-Logo-2.jpg

497 ms

intellihot.jpg

intellihot.jpg

498 ms

mrpex-systems.jpg

mrpex-systems.jpg

498 ms

Natcom_Logo-300x150-v2.jpg

Natcom_Logo-300x150-v2.jpg

496 ms

neptune-pump.jpg

neptune-pump.jpg

488 ms

niles-steel-tank.jpg

niles-steel-tank.jpg

488 ms

raypak.jpg

raypak.jpg

485 ms

recaptcha__en.js

recaptcha__en.js

245 ms

res-kem.jpg

res-kem.jpg

430 ms

siemens.jpg

siemens.jpg

239 ms

thrush-co-inc.jpg

thrush-co-inc.jpg

411 ms

tigerflow.jpg

tigerflow.jpg

412 ms

van-packer-company.jpg

van-packer-company.jpg

411 ms

camus-hydronics-ltd.jpg

camus-hydronics-ltd.jpg

410 ms

duravent.jpg

duravent.jpg

409 ms

Hubbell.jpg

Hubbell.jpg

409 ms

perma-pipe.jpg

perma-pipe.jpg

408 ms

delval-gray-flame-bgnd.png

delval-gray-flame-bgnd.png

408 ms

dv-offer-bgnd.jpg

dv-offer-bgnd.jpg

407 ms

quote-form-bgnd.jpg

quote-form-bgnd.jpg

406 ms

anchor

anchor

151 ms

styles__ltr.css

styles__ltr.css

73 ms

recaptcha__en.js

recaptcha__en.js

76 ms

K1x6b-2KMXAL0IlzeahUAOCVah6M7Udib3NOSV9xjhQ.js

K1x6b-2KMXAL0IlzeahUAOCVah6M7Udib3NOSV9xjhQ.js

42 ms

webworker.js

webworker.js

41 ms

logo_48.png

logo_48.png

29 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

39 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

43 ms

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

48 ms

recaptcha__en.js

recaptcha__en.js

31 ms

Accessibility Review

delval.com accessibility score

85

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

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.

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

delval.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

delval.com SEO score

84

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

High

Image elements do not have [alt] attributes

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 Delval.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 Delval.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

delval.com

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