serco.com Website Information
Daily Unique Visits: 33,546
Daily Page Views: 201,276
Income Per Day: $403
Estimated Value: $290,160
This website is located in Netherlands and is using following IP address 40.68.83.40. See the complete list of popular websites hosted in Netherlands.
serco.com is registered under .COM top-level domain. Please check other sites in .COM zone.
Website serco.com is using the following name servers:
- ns1-04.azure-dns.com
- ns2-04.azure-dns.net
- ns3-04.azure-dns.org
- ns4-04.azure-dns.info
and is probably hosted by LVLT-10753 - Level 3 Parent, LLC, US. See the full list of other websites hosted by LVLT-10753 - Level 3 Parent, LLC, US.
The highest website serco.com position in Alexa rank database was 41967 and the lowest rank position was 103741. Current position of serco.com in Alexa rank database is 42754.
Desktop speed score of serco.com (41/100) is better than the results of 15.65% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of serco.com (100/100) is better than the results of 100% of other sites and means that the page is mobile-friendly.
Mobile speed score of serco.com (32/100) is better than the results of 11.35% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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serco.com Alexa Rank
The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.
serco.com whois
WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.
Domain Name: SERCO.COM
Registry Domain ID: 1050732_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.safenames.net
Registrar URL: http://www.safenames.net
Updated Date: 2024-01-01T04:30:08Z
Creation Date: 1994-12-08T05:00:00Z
Registry Expiry Date: 2025-12-07T05:00:00Z
Registrar: SafeNames Ltd.
Registrar IANA ID: 447
Registrar Abuse Contact Email: abuse@safenames.net
Registrar Abuse Contact Phone: +44.1908200022
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Domain Status: serverDeleteProhibited https://icann.org/epp#serverDeleteProhibited
Domain Status: serverTransferProhibited https://icann.org/epp#serverTransferProhibited
Domain Status: serverUpdateProhibited https://icann.org/epp#serverUpdateProhibited
Name Server: NS1-04.AZURE-DNS.COM
Name Server: NS2-04.AZURE-DNS.NET
Name Server: NS3-04.AZURE-DNS.ORG
Name Server: NS4-04.AZURE-DNS.INFO
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-10-08T18:20:05Z
Registry Domain ID: 1050732_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.safenames.net
Registrar URL: http://www.safenames.net
Updated Date: 2024-01-01T04:30:08Z
Creation Date: 1994-12-08T05:00:00Z
Registry Expiry Date: 2025-12-07T05:00:00Z
Registrar: SafeNames Ltd.
Registrar IANA ID: 447
Registrar Abuse Contact Email: abuse@safenames.net
Registrar Abuse Contact Phone: +44.1908200022
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Domain Status: serverDeleteProhibited https://icann.org/epp#serverDeleteProhibited
Domain Status: serverTransferProhibited https://icann.org/epp#serverTransferProhibited
Domain Status: serverUpdateProhibited https://icann.org/epp#serverUpdateProhibited
Name Server: NS1-04.AZURE-DNS.COM
Name Server: NS2-04.AZURE-DNS.NET
Name Server: NS3-04.AZURE-DNS.ORG
Name Server: NS4-04.AZURE-DNS.INFO
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-10-08T18:20:05Z
serco.com server information
Servers Location
serco.com desktop page speed rank
Last tested: 2018-11-10
Desktop Speed
Bad
41/100
serco.com Desktop Speed Test Quick Summary
priority - 119Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 1.1MiB (72% reduction).
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Compressing https://www.serco.com/media/2542/uk-transport-2018…re-hero.jpg?1533133463 could save 238.1KiB (44% reduction).
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Compressing and resizing https://www.serco.com/media/2830/bedtime-stories-o…rk-past.jpg?1541174012 could save 142.1KiB (96% reduction).
Compressing https://www.serco.com/media/159/159.original.jpg could save 103.2KiB (77% reduction).
Compressing https://www.serco.com/media/157/157.original.jpg?1466438892 could save 85.6KiB (78% reduction).
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priority - 10Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 3 blocking CSS resources. This causes a delay in rendering your page.
Optimize CSS Delivery of the following:
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https://fast.fonts.net/t/1.css?apiType=css&project…4b42-8d6b-cc3af5b95f52
https://www.serco.com/css/app.css
https://fast.fonts.net/t/1.css?apiType=css&project…4b42-8d6b-cc3af5b95f52
https://www.serco.com/css/app.css
priority - 9Avoid landing page redirects
Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://serco.com/
https://serco.com/
https://www.serco.com/
https://serco.com/
https://www.serco.com/
priority - 8Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 80.5KiB (68% reduction).
Compressing https://bir-app.s3.eu-west-2.amazonaws.com/js/jquery-2.2.0.min.js could save 54.4KiB (65% reduction).
Compressing https://bir-app.s3.eu-west-2.amazonaws.com/css/font-awesome.min.css could save 20.7KiB (77% reduction).
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priority - 6Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
https://bir-app.s3.eu-west-2.amazonaws.com/css/avenir-light.css (expiration not specified)
https://bir-app.s3.eu-west-2.amazonaws.com/css/font-awesome.min.css (expiration not specified)
https://bir-app.s3.eu-west-2.amazonaws.com/css/normalize.css (expiration not specified)
https://bir-app.s3.eu-west-2.amazonaws.com/fonts/avenir-light.woff2 (expiration not specified)
https://bir-app.s3.eu-west-2.amazonaws.com/js/jquery-2.2.0.min.js (expiration not specified)
https://www.serco.com/css/app.css (expiration not specified)
https://www.serco.com/images/brand-logo.png (expiration not specified)
https://www.serco.com/images/hero-arrow.png (expiration not specified)
https://www.serco.com/images/sprites.png (expiration not specified)
https://www.serco.com/js/all.js (expiration not specified)
https://www.serco.com/media/159/159.original.jpg (expiration not specified)
https://www.googletagmanager.com/gtm.js?id=GTM-T44Z8S7 (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
https://bir-app.s3.eu-west-2.amazonaws.com/css/font-awesome.min.css (expiration not specified)
https://bir-app.s3.eu-west-2.amazonaws.com/css/normalize.css (expiration not specified)
https://bir-app.s3.eu-west-2.amazonaws.com/fonts/avenir-light.woff2 (expiration not specified)
https://bir-app.s3.eu-west-2.amazonaws.com/js/jquery-2.2.0.min.js (expiration not specified)
https://www.serco.com/css/app.css (expiration not specified)
https://www.serco.com/images/brand-logo.png (expiration not specified)
https://www.serco.com/images/hero-arrow.png (expiration not specified)
https://www.serco.com/images/sprites.png (expiration not specified)
https://www.serco.com/js/all.js (expiration not specified)
https://www.serco.com/media/159/159.original.jpg (expiration not specified)
https://www.googletagmanager.com/gtm.js?id=GTM-T44Z8S7 (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 6Reduce server response time
In our test, your server responded in 0.78 seconds.
priority - 1Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 7.5KiB (32% reduction).
Minifying https://bir-app.s3.eu-west-2.amazonaws.com/css/normalize.css could save 5.2KiB (71% reduction).
Minifying https://www.serco.com/css/app.css could save 2.2KiB (14% reduction) after compression.
Minifying https://www.serco.com/css/app.css could save 2.2KiB (14% reduction) after compression.
priority - 0Minify HTML
Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
Minify HTML for the following resources to reduce their size by 1.2KiB (17% reduction).
Minifying https://www.serco.com/ could save 1.2KiB (17% reduction) after compression.
serco.com Desktop Resource Breakdown
| Total Resources | 35 |
| Number of Hosts | 9 |
| Static Resources | 17 |
| JavaScript Resources | 5 |
| CSS Resources | 8 |
serco.com mobile page speed rank
Last tested: 2018-11-10
Mobile Speed
Bad
32/100
serco.com Mobile Speed Test Quick Summary
priority - 119Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 1.1MiB (59% reduction).
Compressing https://www.serco.com/media/733/733.original.jpg?1474037716 could save 572.6KiB (77% reduction).
Compressing https://www.serco.com/media/2542/uk-transport-2018…re-hero.jpg?1533133463 could save 238.1KiB (44% reduction).
Compressing https://www.serco.com/media/2838/hong-kong-tunnels…128x600.jpg?1541638478 could save 111.3KiB (50% reduction).
Compressing https://www.serco.com/media/159/159.original.jpg could save 103.2KiB (77% reduction).
Compressing https://www.serco.com/media/157/157.original.jpg?1466438892 could save 85.6KiB (78% reduction).
Compressing https://www.serco.com/media/2830/bedtime-stories-o…rk-past.jpg?1541174012 could save 24.1KiB (17% reduction).
Compressing https://www.serco.com/media/734/734.original.jpg?1474041009 could save 21KiB (67% reduction).
Compressing https://www.serco.com/images/sprites.png could save 7.1KiB (30% reduction).
Compressing https://www.serco.com/images/brand-logo.png could save 866B (25% reduction).
Compressing https://www.serco.com/images/hero-arrow.png could save 203B (19% reduction).
Compressing https://www.serco.com/media/2542/uk-transport-2018…re-hero.jpg?1533133463 could save 238.1KiB (44% reduction).
Compressing https://www.serco.com/media/2838/hong-kong-tunnels…128x600.jpg?1541638478 could save 111.3KiB (50% reduction).
Compressing https://www.serco.com/media/159/159.original.jpg could save 103.2KiB (77% reduction).
Compressing https://www.serco.com/media/157/157.original.jpg?1466438892 could save 85.6KiB (78% reduction).
Compressing https://www.serco.com/media/2830/bedtime-stories-o…rk-past.jpg?1541174012 could save 24.1KiB (17% reduction).
Compressing https://www.serco.com/media/734/734.original.jpg?1474041009 could save 21KiB (67% reduction).
Compressing https://www.serco.com/images/sprites.png could save 7.1KiB (30% reduction).
Compressing https://www.serco.com/images/brand-logo.png could save 866B (25% reduction).
Compressing https://www.serco.com/images/hero-arrow.png could save 203B (19% reduction).
priority - 40Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 3 blocking CSS resources. This causes a delay in rendering your page.
Optimize CSS Delivery of the following:
https://fast.fonts.net/cssapi/d22bc417-4683-4b42-8d6b-cc3af5b95f52.css
https://fast.fonts.net/t/1.css?apiType=css&project…4b42-8d6b-cc3af5b95f52
https://www.serco.com/css/app.css
https://fast.fonts.net/t/1.css?apiType=css&project…4b42-8d6b-cc3af5b95f52
https://www.serco.com/css/app.css
priority - 34Avoid landing page redirects
Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
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https://serco.com/
https://www.serco.com/
https://serco.com/
https://www.serco.com/
priority - 10Reduce server response time
In our test, your server responded in 0.89 seconds.
priority - 10Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
https://bir-app.s3.eu-west-2.amazonaws.com/css/avenir-light.css (expiration not specified)
https://bir-app.s3.eu-west-2.amazonaws.com/css/font-awesome.min.css (expiration not specified)
https://bir-app.s3.eu-west-2.amazonaws.com/css/normalize.css (expiration not specified)
https://bir-app.s3.eu-west-2.amazonaws.com/fonts/avenir-light.woff2 (expiration not specified)
https://bir-app.s3.eu-west-2.amazonaws.com/js/jquery-2.2.0.min.js (expiration not specified)
https://www.serco.com/css/app.css (expiration not specified)
https://www.serco.com/images/brand-logo.png (expiration not specified)
https://www.serco.com/images/hero-arrow.png (expiration not specified)
https://www.serco.com/images/sprites.png (expiration not specified)
https://www.serco.com/js/all.js (expiration not specified)
https://www.serco.com/media/159/159.original.jpg (expiration not specified)
https://www.googletagmanager.com/gtm.js?id=GTM-T44Z8S7 (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
https://bir-app.s3.eu-west-2.amazonaws.com/css/font-awesome.min.css (expiration not specified)
https://bir-app.s3.eu-west-2.amazonaws.com/css/normalize.css (expiration not specified)
https://bir-app.s3.eu-west-2.amazonaws.com/fonts/avenir-light.woff2 (expiration not specified)
https://bir-app.s3.eu-west-2.amazonaws.com/js/jquery-2.2.0.min.js (expiration not specified)
https://www.serco.com/css/app.css (expiration not specified)
https://www.serco.com/images/brand-logo.png (expiration not specified)
https://www.serco.com/images/hero-arrow.png (expiration not specified)
https://www.serco.com/images/sprites.png (expiration not specified)
https://www.serco.com/js/all.js (expiration not specified)
https://www.serco.com/media/159/159.original.jpg (expiration not specified)
https://www.googletagmanager.com/gtm.js?id=GTM-T44Z8S7 (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 8Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
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Compressing https://bir-app.s3.eu-west-2.amazonaws.com/js/jquery-2.2.0.min.js could save 54.4KiB (65% reduction).
Compressing https://bir-app.s3.eu-west-2.amazonaws.com/css/font-awesome.min.css could save 20.7KiB (77% reduction).
Compressing https://bir-app.s3.eu-west-2.amazonaws.com/css/normalize.css could save 5.2KiB (71% reduction).
Compressing https://bir-app.s3.eu-west-2.amazonaws.com/css/avenir-light.css could save 211B (50% reduction).
Compressing https://bir-app.s3.eu-west-2.amazonaws.com/css/font-awesome.min.css could save 20.7KiB (77% reduction).
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priority - 1Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 7.5KiB (32% reduction).
Minifying https://bir-app.s3.eu-west-2.amazonaws.com/css/normalize.css could save 5.2KiB (71% reduction).
Minifying https://www.serco.com/css/app.css could save 2.2KiB (14% reduction) after compression.
Minifying https://www.serco.com/css/app.css could save 2.2KiB (14% reduction) after compression.
priority - 0Minify HTML
Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
Minify HTML for the following resources to reduce their size by 1.2KiB (17% reduction).
Minifying https://www.serco.com/ could save 1.2KiB (17% reduction) after compression.
serco.com Mobile Resource Breakdown
| Total Resources | 36 |
| Number of Hosts | 9 |
| Static Resources | 17 |
| JavaScript Resources | 5 |
| CSS Resources | 8 |
serco.com mobile page usability
Last tested: 2018-11-10
Mobile Usability
Good
100/100
serco.com HTML validation
Warnings
Attribute “)” is not serializable as XML 1.0.
Line: 125 Column: 81 - 110
"... <option value="/" ) selected >Group<..."
"... <option value="/" ) selected >Group<..."
Empty heading.
Line: 530 Column: 25 - 48
"... <h2 class="block-title"> </h2>..."
"... <h2 class="block-title"> </h2>..."
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
Line: 2 Column: 16 - 6
"...TYPE html> <html> <head..."
"...TYPE html> <html> <head..."
Errors
Attribute “)” not allowed on element “option” at this point.
Line: 125 Column: 81 - 110
"... <option value="/" ) selected >Group<..."
"... <option value="/" ) selected >Group<..."
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Line: 542 Column: 5 - 159
".../h3> <iframe src="https://polaris.brighterir.com/public/serco/data_table/share_price_widget" frameborder="0" style="overflow:hidden; height:160px; width:100%;">This s..."
".../h3> <iframe src="https://polaris.brighterir.com/public/serco/data_table/share_price_widget" frameborder="0" style="overflow:hidden; height:160px; width:100%;">This s..."
Text not allowed in element “iframe” in this context.
Line: 542 Column: 160 - 255
"...th:100%;">This section uses frames. If you are viewing this text then your browser does not support frames</ifra..."
"...th:100%;">This section uses frames. If you are viewing this text then your browser does not support frames</ifra..."
Element “p” not allowed as child of element “h3” in this context. (Suppressing further errors from this subtree.)
Line: 560 Column: 13 - 15
"... <h3><p>What g..."
"... <h3><p>What g..."
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serco.com Ping
Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.
serco.com TRACEROUTE
Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.