Diagnostic Site Links
Links to useful diagnostic web sites:
Internet |
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Check a BT telephone line for availability of broadband services. |
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Online Internet speed test web site |
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Look up details for .co.uk domain names |
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Look up details for almost any domain name |
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Check MTU - Requires ICMP on Router WAN |
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Download - tests local DNS performance |
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Download - Checks for slow performance due to Inspectre and Meltdown patches |
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SMTP Configuration Checks |
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MX Toolbox DMARK Record information |
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Check SPF, DKIM and DMARC Records for a domain |
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Check for email addresses in known data breaches |
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Specialised utilities to remove specific Virus and Rootkit infections. Use with care! |
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