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Capability

Page speed monitoring that catches the slow creep before the trend gets worse.

Slow sites lose customers before they load. Every extra second of load time cuts conversion in half. SiteGuardian tracks TTFB, response time, and the slow threshold you set per URL — so a slow site never quietly becomes a worse one without you noticing.

What this tool does in one sentence
SiteGuardian probes the URL daily from multiple regions with a mobile-shaped user-agent, tracking TTFB and response time against the slow threshold you set per URL, and emails you the day the baseline is exceeded.
Best for
A hero /home or /checkout page where a half-second TTFB regression across days signals a heavier plugin or an unoptimised image before conversion takes the hit — the slow creep that Lighthouse-on-demand misses between runs.
Compared to
Lighthouse for point-in-time speed — SiteGuardian measures daily, multi-region, and reports the TTFB regression trend against the prior-day baseline.
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Page speed monitoring in depth

  • What it is

    A daily TTFB and response-time probe per URL

    1. Add the URL whose page-speed you most want to keep an eye on — home, product, /contact.
    2. Pick a slow threshold in plain English (1.5 seconds is sane for /home, 1.0 is sane for /checkout). SiteGuardian starts probing inside the next cycle.
    3. Multi-region probing: a CDN edge that is fast in Dallas and slow in London still trips the alert.

  • Why small businesses run it

    Caught the day it lands, not three weeks later

    1. A theme update, a heavier plugin, an unoptimised hero image — each of these can add half a second to every page load without throwing a single error.
    2. Lighthouse-on-demand measures at one moment, in one region, often on desktop; SiteGuardian measures sequentially, multi-region, and reports the trend.
    3. A regression that landed between Lighthouse runs is caught the day it lands.

  • What the alert email looks like

    URL, timestamp, new TTFB, prior-day baseline

    1. Subject: SiteGuardian — https://example.com answered at 2,820ms.
    2. Body: the URL, the UTC timestamp, the new TTFB / response time, and the prior-day baseline so you can read the trend.
    3. Mobile-shaped probes on multi-region infrastructure catch the silent mobile regression that a desktop Lighthouse run would miss.

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