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Top Technologies

Google Font API
Font Scripts
Nginx
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jQuery
JavaScript Frameworks
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14 boltstructures.com Last Updated: 3 years

Success 54% of passed verification steps
Warning 23% of total warning
Errors 23% of total errors, require fast action
Share

Desktop

Mobile

Performance Desktop Score 87%
Best Practices Desktop Score 92%
SEO Desktop Score 92%
PWA Desktop Score 56%
Performance Mobile Score 22%
Best Practices Mobile Score 83%
SEO Mobile Score 90%
PWA Mobile Score 50%
Page Authority Authority 5%
Domain Authority Domain Authority 3%
Moz Rank 0.5/10
Bounce Rate Rate 0%
charset Encoding
Great, language/character encoding is specified: UTF-8
Title Tag 69 Characters
CHARTERED STRUCTURAL ENGINEER HERTFORDSHIRE | BOLT STRUCTURES LIMITED
Meta Description 264 Characters
We provide variety of services including structural calculation, drawings, rebar detail, structural survey reports across London, Birmingham and surrounding Counties. Our structural engineers will be happy to attend site meetings and liaise with you and your team.
Effective URL 30 Characters
https://www.boltstructures.com
Excerpt Page content
Chartered Structural Engineer Hertfordshire | Bolt Structures Limited 0207 101 3687 [email protec...
Keywords Cloud Density
structural7 cycle5 data5 structures4 bolt4 services4 engineers4 more3 home3 about3
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
structural 7
cycle 5
data 5
structures 4
bolt 4
services 4
engineers 4
more 3
home 3
about 3
Google Preview Your look like this in google search result
CHARTERED STRUCTURAL ENGINEER HERTFORDSHIRE | BOLT STRUCTURE
https://www.boltstructures.com
We provide variety of services including structural calculation, drawings, rebar detail, structural survey reports across London, Birmingham and surro
Robots.txt File Detected
http://boltstructures.com/robots.txt
Sitemap.xml File Detected
http://boltstructures.com/sitemap.xml
Page Size Code & Text Ratio
Document Size: ~44.5 KB
Code Size: ~27.15 KB
Text Size: ~17.35 KB Ratio: 38.98%

Social Data

Estimation Traffic and Earnings

8
Unique Visits
Daily
14
Pages Views
Daily
$0
Income
Daily
224
Unique Visits
Monthly
399
Pages Views
Monthly
$0
Income
Monthly
2,592
Unique Visits
Yearly
4,704
Pages Views
Yearly
$0
Income
Yearly

Desktop

Desktop Screenshot
Uses efficient cache policy on static assets 2 resources found
A long cache lifetime can speed up repeat visits to your page
JavaScript execution time 0.7 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Reduce initial server response time Root document took 1,010 ms
Keep the server response time for the main document short because all other requests depend on it
Largest Contentful Paint element 1 element found
This is the largest contentful element painted within the viewport
Minimizes main-thread work 1.6 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
Reduce unused CSS Potential savings of 84 KiB
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity
Reduce unused JavaScript Potential savings of 100 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity
Largest Contentful Paint 0.9 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Serve images in next-gen formats Potential savings of 714 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption
Avoid long main-thread tasks 3 long tasks found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay
Eliminate render-blocking resources Potential savings of 550 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Defer offscreen images Potential savings of 847 KiB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive
Avoids enormous network payloads Total size was 2,232 KiB
Large network payloads cost users real money and are highly correlated with long load times
Minimize third-party usage Third-party code blocked the main thread for 110 ms
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading
Avoid chaining critical requests 28 chains found
The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load
Avoids an excessive DOM size 343 elements
A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow)
Avoid serving legacy JavaScript to modern browsers Potential savings of 0 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. For your bundled JavaScript, adopt a modern script deployment strategy using module/nomodule feature detection to reduce the amount of code shipped to modern browsers, while retaining support for legacy browsers
Speed Index 3.6 s
Speed Index shows how quickly the contents of a page are visibly populated
Avoid large layout shifts 1 element found
These DOM elements contribute most to the CLS of the page.
Total Blocking Time 110 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
Avoid non-composited animations 1 animated element found
Animations which are not composited can be janky and increase CLS
First Contentful Paint 0.9 s
First Contentful Paint marks the time at which the first text or image is painted
Server Backend Latencies 0 ms
Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance
Max Potential First Input Delay 160 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Time to Interactive 2.7 s
Time to interactive is the amount of time it takes for the page to become fully interactive
Network Round Trip Times 0 ms
Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance
Includes front-end JavaScript libraries with known security vulnerabilities 2 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Efficiently encode images Potential savings of 550 KiB
Optimized images load faster and consume less cellular data
Keep request counts low and transfer sizes small 48 requests • 2,232 KiB
To set budgets for the quantity and size of page resources, add a budget.json file
First Meaningful Paint 0.9 s
First Meaningful Paint measures when the primary content of a page is visible

Mobile

Mobile Screenshot
Avoid long main-thread tasks 20 long tasks found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay
Efficiently encode images Potential savings of 623 KiB
Optimized images load faster and consume less cellular data
Time to Interactive 14.5 s
Time to interactive is the amount of time it takes for the page to become fully interactive
Avoid large layout shifts 1 element found
These DOM elements contribute most to the CLS of the page.
Avoids an excessive DOM size 343 elements
A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow)
Keep request counts low and transfer sizes small 57 requests • 2,581 KiB
To set budgets for the quantity and size of page resources, add a budget.json file
Largest Contentful Paint 9.7 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Cumulative Layout Shift 0.001
Cumulative Layout Shift measures the movement of visible elements within the viewport
Includes front-end JavaScript libraries with known security vulnerabilities 2 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Uses efficient cache policy on static assets 2 resources found
A long cache lifetime can speed up repeat visits to your page
Avoid non-composited animations 1 animated element found
Animations which are not composited can be janky and increase CLS
Total Blocking Time 1,610 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
First Meaningful Paint 4.2 s
First Meaningful Paint measures when the primary content of a page is visible
Largest Contentful Paint element 1 element found
This is the largest contentful element painted within the viewport
Avoid chaining critical requests 28 chains found
The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load
Avoids enormous network payloads Total size was 2,581 KiB
Large network payloads cost users real money and are highly correlated with long load times
First Contentful Paint 4.2 s
First Contentful Paint marks the time at which the first text or image is painted
Reduce JavaScript execution time 4.3 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Defer offscreen images Potential savings of 847 KiB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive
First Contentful Paint (3G) 8867 ms
First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network
Avoid serving legacy JavaScript to modern browsers Potential savings of 0 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. For your bundled JavaScript, adopt a modern script deployment strategy using module/nomodule feature detection to reduce the amount of code shipped to modern browsers, while retaining support for legacy browsers
Max Potential First Input Delay 900 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Tap targets are not sized appropriately 67% appropriately sized tap targets
Interactive elements like buttons and links should be large enough (48x48px), and have enough space around them, to be easy enough to tap without overlapping onto other elements
Minimize main-thread work 8.0 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
Network Round Trip Times 0 ms
Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance
Document uses legible font sizes 97.66% legible text
Font sizes less than 12px are too small to be legible and require mobile visitors to “pinch to zoom” in order to read. Strive to have >60% of page text ≥12px
Reduce unused JavaScript Potential savings of 100 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity
Speed Index 11.8 s
Speed Index shows how quickly the contents of a page are visibly populated
Reduce unused CSS Potential savings of 85 KiB
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity
Server Backend Latencies 0 ms
Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance
Initial server response time was short Root document took 530 ms
Keep the server response time for the main document short because all other requests depend on it
Eliminate render-blocking resources Potential savings of 2,440 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Serve images in next-gen formats Potential savings of 915 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption
Reduce the impact of third-party code Third-party code blocked the main thread for 2,240 ms
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading

Speed And Optimization Tips

Website speed has a huge impact on performance, affecting user experience, conversion rates and even rankings. ‪‬‬By reducing page load-times, users are less likely to get distracted and the search engines are more likely to reward you by ranking you
Title Website
Warning! Your title is not optimized
Description Website
Warning! Your description is not optimized
Robots.txt
Congratulations! Your site have a robots.txt file
Sitemap.xml
Congratulations! We've found a sitemap file for your website
SSL Secure
Congratulations! Your site have Support to HTTPS
Headings
Congratulations! You are using your H1 and H2 tags in your site
Blacklist
Congratulations! Your site is not listed in a blacklist
W3C Validator
Warning! Your site have errors W3C
Accelerated Mobile Pages (AMP)
Warning! Your site not have AMP Version
Domain Authority
Warning! Domain Authority of your website is slow. It is good to have domain authority more than 25.
GZIP Compress
Warning! Your site not is compressed, this can make slower response for the visitors
Favicon
Congratulations! Your website appears to have a favicon.
Broken Links
Congratulations! You not have broken links View links
First 5 Links Relationship HTTP Status
https://www.boltstructures.com Internal Link 200
About us Internal Link 200
Services Internal Link 200
Projects Internal Link 200
Contact us Internal Link 200

Alexa Rank

99,999,999

Global Rank

99,999,999

-
Traffic
Search

Domain Available

Domain (TDL) and Typo Status
boltstructures.co Available
boltstructures.us Available
boltstructures.com Already Registered
boltstructures.org Available
boltstructures.net Available
bltstructures.com Available
goltstructures.com Available
yoltstructures.com Available

Information Server

Response Header HTTP headers carry information about the client browser, the requested page and the server 
HTTP/1.1 200 OK
Date: Sun, 11 Sep 2022 19:52:48 GMT
Content-Type: text/html; charset=UTF-8
Connection: keep-alive
X-Powered-By: PHP/7.4.30
Vary: Accept-Encoding
Last-Modified: Sun, 11 Sep 2022 19:52:36 GMT
Cache-Control: max-age=0
Expires: Sun, 11 Sep 2022 19:52:47 GMT
CF-Cache-Status: DYNAMIC
Report-To: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=qbFUMFQ%2B2HM%2B7k2vkk63IMgwkS7Z%2FXxj6YN2ZIIxtl7loVOab1w%2FDB1nTiC%2FHfoPrf%2BdDopqdciEFA8L9lbO%2BWeXbyLbkpl9yI8ZP1vT9tCPDq8IFn04ELE%2BqH98Iex1jlaYgsmZ%2BWsd"}],"group":"cf-nel","max_age":604800}
NEL: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
Server: cloudflare
CF-RAY: 7492f22169a553fb-YYZ
Content-Encoding: gzip
alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400
DNS Records DNS Resource Records associated with a hostname
View DNS Records
Type Name Value Class TTL
A boltstructures.com 172.64.80.1 IN 176
NS boltstructures.com davina.ns.cloudflare.com IN 21600
NS boltstructures.com seth.ns.cloudflare.com IN 21600
MX boltstructures.com alt1.aspmx.l.google.com IN 300
MX boltstructures.com aspmx.l.google.com IN 300
MX boltstructures.com alt4.aspmx.l.google.com IN 300
MX boltstructures.com alt2.aspmx.l.google.com IN 300
MX boltstructures.com alt3.aspmx.l.google.com IN 300
TXT boltstructures.com google-site-verification=8Qu-lhRUtyCeICRUGVTdHOKJdLJJaHCyP61Z7loSp7Q IN 300
AAAA boltstructures.com 2606:4700:130:436c:6f75:6466:6c61:7265 IN 178

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