Tools & Wizards About Us
nationalgrid.com screenshot

Report Summary

  • 26

    Performance

    Renders faster than
    46% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 60% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

nationalgrid.com

Welcome to National Grid Group | National Grid Group

Page Load Speed

3.6 sec in total

First Response

56 ms

Resources Loaded

2.3 sec

Page Rendered

1.2 sec

nationalgrid.com screenshot

About Website

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

We are one of the world’s largest investor-owned energy companies, committed to delivering electricity and gas safely, reliably and efficiently to the customers and communities we serve.

Visit nationalgrid.com

Key Findings

We analyzed Nationalgrid.com page load time and found that the first response time was 56 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

nationalgrid.com performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

52/100

10%

LCP (Largest Contentful Paint)

Value5.2 s

23/100

25%

SI (Speed Index)

Value15.4 s

1/100

10%

TBT (Total Blocking Time)

Value7,160 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value32.4 s

0/100

10%

Network Requests Diagram

nationalgrid.com

56 ms

www.nationalgrid.com

534 ms

gtm.js

82 ms

css2

54 ms

css2

72 ms

Our browser made a total of 83 requests to load all elements on the main page. We found that 43% of them (36 requests) were addressed to the original Nationalgrid.com, 6% (5 requests) were made to Youtube.com and 6% (5 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (985 ms) belongs to the original domain Nationalgrid.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 604.4 kB (11%)

Content Size

5.7 MB

After Optimization

5.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nationalgrid.com main page is 5.7 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 5.1 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 85.2 kB

  • Original 108.3 kB
  • After minification 108.2 kB
  • After compression 23.1 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 85.2 kB or 79% of the original size.

Image Optimization

-10%

Potential reduce by 514.8 kB

  • Original 5.1 MB
  • After minification 4.6 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. National Grid images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 4.5 kB

  • Original 350.5 kB
  • After minification 350.5 kB
  • After compression 346.1 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 14 B

  • Original 149.6 kB
  • After minification 149.6 kB
  • After compression 149.6 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. Nationalgrid.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 37 (52%)

Requests Now

71

After Optimization

34

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 71 CSS, Javascripts, AJAX and image requests in order to completely render the main page of National Grid. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

nationalgrid.com

nationalgrid.com

56 ms

www.nationalgrid.com

www.nationalgrid.com

534 ms

gtm.js

gtm.js

82 ms

css2

css2

54 ms

css2

css2

72 ms

css_RYKwcpN5cB7Svrnu4WuHr41RqKFexVJrcpsgiBgGv4U.css

css_RYKwcpN5cB7Svrnu4WuHr41RqKFexVJrcpsgiBgGv4U.css

35 ms

css_GBqY_cka8ltnLi7g61XeL5nkWieOQoHKZRDW_IPncPE.css

css_GBqY_cka8ltnLi7g61XeL5nkWieOQoHKZRDW_IPncPE.css

54 ms

lity.min.css

lity.min.css

66 ms

css_7IUq3t-gX5fNWE6RjvNgJOBvfV6LpL2Axx0dm6oJ0oA.css

css_7IUq3t-gX5fNWE6RjvNgJOBvfV6LpL2Axx0dm6oJ0oA.css

113 ms

js_f8Na_c9BkJMA7UkplAoEyhVRBWdauZcXb0XcV4XI3sc.js

js_f8Na_c9BkJMA7UkplAoEyhVRBWdauZcXb0XcV4XI3sc.js

68 ms

lity.min.js

lity.min.js

191 ms

js_XLDt5iNKTr6ntwvpVdpRhBSEnSphmfqPGd78QX9xcGM.js

js_XLDt5iNKTr6ntwvpVdpRhBSEnSphmfqPGd78QX9xcGM.js

66 ms

mtiFontTrackingCode.js

mtiFontTrackingCode.js

156 ms

uBH5cwurXJY

uBH5cwurXJY

225 ms

iframe

iframe

201 ms

logo.svg

logo.svg

124 ms

TGGU%20Popcorn.jpg

TGGU%20Popcorn.jpg

195 ms

NG-TGGU-Identifier-White-TriangleAndLine-1300px.png

NG-TGGU-Identifier-White-TriangleAndLine-1300px.png

124 ms

EGL3%20and%204%20Hero.jpg

EGL3%20and%204%20Hero.jpg

352 ms

N-T_1.png

N-T_1.png

790 ms

Brinsworth.png

Brinsworth.png

984 ms

G-W%20Hero%202.jpg

G-W%20Hero%202.jpg

357 ms

The%20Clean%20Energy%20Revolution%20season%203%20promo.png

The%20Clean%20Energy%20Revolution%20season%203%20promo.png

210 ms

WindTurbines_SolarPanels_640x360.jpg

WindTurbines_SolarPanels_640x360.jpg

355 ms

HandsHoldingRedCup_640x360.jpg

HandsHoldingRedCup_640x360.jpg

482 ms

Deliveringfor2023.jpg

Deliveringfor2023.jpg

483 ms

WhatIsNationalGrid_VideoThumbnail.jpg

WhatIsNationalGrid_VideoThumbnail.jpg

555 ms

US%20net%20zero.jpg

US%20net%20zero.jpg

555 ms

EnergyExplained_WhyNetZeroImportant_640x360.jpg

EnergyExplained_WhyNetZeroImportant_640x360.jpg

730 ms

EnergyStorage_WindSolar_640x360.jpg

EnergyStorage_WindSolar_640x360.jpg

727 ms

Wind%20turbine%20in%20the%20sea%20seen%20from%20above%20-%20640x360.jpg

Wind%20turbine%20in%20the%20sea%20seen%20from%20above%20-%20640x360.jpg

730 ms

T-pylons_OHL_GreenFields_640x360.jpg

T-pylons_OHL_GreenFields_640x360.jpg

727 ms

shareprice.jpg

shareprice.jpg

788 ms

SarahWoolhamJaffier_JA281119-46.jpg

SarahWoolhamJaffier_JA281119-46.jpg

786 ms

national-grid-logo.svg

national-grid-logo.svg

783 ms

x-logo.svg

x-logo.svg

784 ms

instagram.svg

instagram.svg

985 ms

js

js

177 ms

js

js

321 ms

analytics.js

analytics.js

384 ms

hotjar-1180722.js

hotjar-1180722.js

513 ms

destination

destination

380 ms

217992b204aae.js

217992b204aae.js

509 ms

fbevents.js

fbevents.js

385 ms

insight.min.js

insight.min.js

383 ms

uwt.js

uwt.js

455 ms

api.min.js

api.min.js

453 ms

script.js

script.js

380 ms

js

js

251 ms

439c5962-f9fe-4eaf-a1f6-f41d42edba75.woff

439c5962-f9fe-4eaf-a1f6-f41d42edba75.woff

870 ms

050b1948-f226-4d20-a65a-15d8ed031222.woff

050b1948-f226-4d20-a65a-15d8ed031222.woff

869 ms

34e0e4c0-c294-49bb-9a8e-1b2cafd54e32.woff

34e0e4c0-c294-49bb-9a8e-1b2cafd54e32.woff

869 ms

ca8d25cd-e264-4404-b271-4afc45c779c4.woff

ca8d25cd-e264-4404-b271-4afc45c779c4.woff

868 ms

fontello.woff

fontello.woff

871 ms

icomoon.woff

icomoon.woff

872 ms

iframe

iframe

290 ms

www-player.css

www-player.css

199 ms

www-embed-player.js

www-embed-player.js

350 ms

base.js

base.js

583 ms

linkid.js

linkid.js

295 ms

log

log

844 ms

insight_tag_errors.gif

insight_tag_errors.gif

597 ms

collect

collect

443 ms

collect

collect

441 ms

collect

collect

423 ms

collect

collect

448 ms

collect

collect

478 ms

collect

collect

438 ms

ad_status.js

ad_status.js

412 ms

71suEs83z0XiqH0n_P_GdL05qLj4eQk8ZwtXjY02tX0.js

71suEs83z0XiqH0n_P_GdL05qLj4eQk8ZwtXjY02tX0.js

193 ms

embed.js

embed.js

42 ms

adsct

adsct

377 ms

adsct

adsct

379 ms

adsct

adsct

378 ms

adsct

adsct

376 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

222 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

236 ms

li_sync

li_sync

195 ms

ga-audiences

ga-audiences

193 ms

ga-audiences

ga-audiences

177 ms

ga-audiences

ga-audiences

176 ms

id

id

111 ms

Create

Create

33 ms

Accessibility Review

nationalgrid.com accessibility score

85

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

nationalgrid.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

nationalgrid.com SEO score

79

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

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

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 Nationalgrid.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 Nationalgrid.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

nationalgrid.com

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