npl.co.uk
🖥 Status: up
🕒 Response Time: 0.274 sec
⬅️ Response Code: 200
According to the accessibility report, npl.co.uk has been checked 4 times in the last 619 days since December 3, 2024. Npl.co.uk has been reachable 4 times out of all tests, the last uptime on July 5, 2026, returned a 200 status code. All assessments indicated npl.co.uk faced no periods of inoperability as of August 14, 2026. Responses obtained as of August 14, 2026, have been confirmed as not containing any error statuses. Npl.co.uk's 0.274 seconds response on July 5, 2026, contrasted with its average response time of 0.283 seconds.
4
Last Updated: July 5, 2026
Npl overview
- Domain
- npl.co.uk
- Title
- National Physical Laboratory - impact from science - NPL
- Description
- National Physical Laboratory (NPL) is the UK’s National Metrology Institute, providing the measurement capability that underpins the UK’s prosperity and quality of life.
- Main Topic
- 125 years of impact from science
- N Site Status Rank
- 85 807
- Search Wikipedia
- npl.co.uk
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- alternatives to npl.co.uk
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Npl.co.uk
status check request map as of August 14, 2026
Country report for npl.co.uk as of August 14, 2026
| United States | 100.00% | ||||||||
| 00:36 | |||||||||
| Site | Total Checks | Last Modified |
|---|---|---|
| 22 | January 26, 2021 | |
| 27 | February 27, 2021 | |
| 4 | December 3, 2024 | |
| 30 | October 29, 2023 | |
| 22 | February 12, 2019 |
Whatonearthcatalog.com | Npl.co.uk | ||||
|---|---|---|---|---|---|
General SEO Report
| Page Title | Page Title tips for npl.co.uk: In the competitive world of search engine results, your website title is the most critical clickable element; ensuring it stays under 60 characters, includes primary target keywords early on, and clearly signals value or relevance to the searcher is vital for maximizing visibility and driving qualified traffic. |
|---|---|
| National Physical Laboratory - impact from science - NPL Length: 56 characters | |
| Meta Description | Meta Description tips for npl.co.uk: Incorporate your main target keyword near the beginning of your meta description naturally to improve its relevance and ranking potential alongside compelling copy that addresses user search intent. |
| National Physical Laboratory (NPL) is the UK’s National Metrology Institute, providing the measurement capability that underpins the UK’s prosperity and quality of life. Length: 181 characters | |
| Meta Keywords | Meta Keywords tips for npl.co.uk: Effective SEO strategies for 2024 completely bypass the <meta name="keywords"> tag, emphasizing instead the strategic use of semantic HTML elements, internal linking structures, featured snippets, and high-quality backlinks to secure valuable search visibility. |
| no meta keywords data for npl.co.uk 2026-08-14T19:54:04+00:00 | |
| Page Content | Page Content tips for npl.co.uk: Ensure each page has clear, descriptive, and keyword-informed H1 headings that accurately reflect the core topic and improve crawlability and user comprehension of the page's focus. |
| Web Page Content Length: 46333 characters | |
| H1 Heading | H1 Heading tips for npl.co.uk: Formatting the H1 tag with appropriate CSS styling enhances its visual prominence, reinforcing its importance to website visitors and guiding their focus towards the core content presented on the page effectively. |
| 125 years of impact from science Count: 1 heading tag | |
| H2 Headings | H2 Headings tips for npl.co.uk: Search engines continuously refine their understanding of semantics, making proper H2 header implementation a proactive strategy in optimizing content information architecture. |
| For people, place, prosperity and planet, we deliver impact with measurement science 125 years of impact from science Measurement services from NPL UK Telecoms Lab drives the security and resilience of future telecoms Detecting hidden flaws: Non-destructive testing and condition monitoring National Timing Centre (NTC) programme Measurement for Business Measurement for Quantum Innovation in action National challenges News and views Enduring capability Contact us Count: 13 heading tag | |
| H3 Headings | H3 Headings tips for npl.co.uk: When writing H3 titles, prioritize clarity and user intent over keyword density; focus on accurately describing the information contained below, ensuring the content fulfills the promise of the H3 header for both readers and search algorithms. |
| Acoustics Biosciences Chemical analysis Communications Engineering Environmental monitoring Ionising radiation Materials Research Products and services Industries About us Careers Resources Skills and learning Count: 15 heading tag | |
| H4 Headings | H4 Headings tips for npl.co.uk: While H4 offers granular control for content organization, focus your primary keyword density and main content value within the higher-level H2 and H3 headings for maximum SEO impact |
| The National Physical Laboratory celebrates 125 years of supporting business growth, innovation and impact. Count: 1 heading tag | |
| H5-H6 Headings | H5-H6 Headings tips for npl.co.uk: Interior pages often benefit from H5 and H6 headers in specific sections detailing examples, case studies, or additional resources, helping structure longer-form content effectively for both readers and bots. |
| no h5-h6 headings data for npl.co.uk 2026-08-14T19:54:04+00:00 | |
| Image ALT Attributes | Image ALT Attributes tips for npl.co.uk: Do not use alt attributes for text that is clearly visible elsewhere on the page; this practice, known as image replacement, can confuse screen readers and is generally not needed for SEO unless the image offers unique information not present in the surrounding text. |
| no image alt attributes data for npl.co.uk 2026-08-14T19:54:04+00:00 | |
| Robots.txt | Robots.txt tips for npl.co.uk: For optimal crawling and indexing, avoid using the robots.txt file to block entire site sections you still want to rank for; instead, focus on internal linking strategies to guide search engines to relevant pages. |
| file robots.txt was found on the website | |
| XML Sitemap | XML Sitemap tips for npl.co.uk: While submitting the XML sitemap via Google Search Console is recommended, maintaining a publicly accessible sitemap index file directly linked from your website's homepage remains beneficial for transparency and comprehensive discovery. |
| no xml sitemap data for npl.co.uk 2026-08-14T19:54:04+00:00 | |
| Page Size | Page Size tips for npl.co.uk: Implementing efficient image compression techniques is crucial for maintaining a lean website page size, significantly enhancing load times, especially on networks with limited bandwidth, and ultimately contributing to better user engagement metrics across all devices. |
| page size: 45 kb | |
| Response Time | Response Time tips for npl.co.uk: To maintain a competitive edge and ensure efficient crawl budgets for search engines, prioritize reducing backend processing latency and improving overall website response speed consistently. |
| response time: 0.283 sec | |
| Minify CSS | Minify CSS tips for npl.co.uk: For optimal website functionality and SEO success, ensure CSS minification is enabled to strip all unnecessary characters, whitespace, and comments, facilitating quicker content delivery, better Core Web Vitals compliance, and a more responsive user interface on all devices. |
| Minified: /npl/assets/css/main.css /_content/Kentico.Content.Web.Rcl/Content/Bundles/Public/systemPageComponents.min.css included in the page | |
| Minify JavaScript | Minify JavaScript tips for npl.co.uk: Failure to minify JavaScript can result in larger file sizes, slower loading pages, degraded user experience, and ultimately, lower search engine rankings; actively compressing this code is essential for SEO success. |
| Minified: //fast.fonts.net/jsapi/1b1cfaf3-5ddd-4430-af4a-47417dd5c9b8.js /_content/Kentico.Content.Web.Rcl/Scripts/jquery-3.5.1.js /_content/Kentico.Content.Web.Rcl/Content/Bundles/Public/systemFormComponents.min.js /NPL/assets/js/vendor.min.js /NPL/assets/js/main.min.js Unminified: /Kentico.Resource/Activities/KenticoActivityLogger/Logger.js?pageIdentifier=371 /Kentico.Resource/WebAnalytics/Logger.js?Culture=en-GB&HttpStatus=200&Value=0 /_content/Kentico.Content.Web.Rcl/Scripts/jquery.unobtrusive-ajax.js detected during site scan | |
| Structured Data | Structured Data tips for npl.co.uk: The strategic use of Schema Markup offers tangible SEO benefits; embedding rich structured data within your website's metadata not only aids search engine crawling but also facilitates the display of visually appealing rich search results, thereby increasing user engagement and potentially leading to improved conversions. |
| no structured data data for npl.co.uk 2026-08-14T19:54:04+00:00 | |
| CDN Usage | CDN Usage tips for npl.co.uk: Use a CDN to offload bandwidth-intensive tasks like video streaming and image delivery from your origin server, freeing up resources to handle application logic and database queries more efficiently, thus boosting server performance. |
| no cdn usage data for npl.co.uk 2026-08-14T19:54:04+00:00 | |
| SSL certificates | SSL certificates tips for npl.co.uk: Failure to implement an SSL certificate on your website can lead to significant issues, including browser security warnings that deter visitors, decreased conversion rates due to trust erosion, and potential SEO ranking drops. |
| SSL is enabled on the website |
Estimated Traffic
| Minimum Daily Unique Visitors: | 24 337 |
| Minimum Daily Visits: | 28 442 |
| Minimum Daily Page Views: | 48 968 |
| Minimum Monthly Unique Visitors: | 730 110 |
| Minimum Monthly Visits: | 853 260 |
| Minimum Monthly Page Views: | 1 469 040 |
| Minimum Yearly Unique Visitors: | 8 761 320 |
| Minimum Yearly Visits: | 10 239 120 |
| Minimum Yearly Page Views: | 17 628 480 |
| Maximum Daily Unique Visitors: | 30 788 |
| Maximum Daily Visits: | 32 841 |
| Maximum Daily Page Views: | 55 419 |
| Maximum Monthly Unique Visitors: | 923 640 |
| Maximum Monthly Visits: | 985 230 |
| Maximum Monthly Page Views: | 1 662 570 |
| Maximum Yearly Unique Visitors: | 11 083 680 |
| Maximum Yearly Visits: | 11 822 760 |
| Maximum Yearly Page Views: | 19 950 840 |
Estimated Valuation
| Daily Revenue: | US$ 35 - 79 |
| Monthly Revenue: | US$ 1 050 - 2 370 |
| Yearly Revenue: | US$ 12 600 - 28 440 |
Estimated Worth
| Minimum: | US$ 18 900 |
| Maximum: | US$ 85 320 |
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