Is this just Lighthouse with a nicer look?

It uses Lighthouse for the raw scores, but differs in two key ways. PafCore loads the page three times and shows how far the score moves on its own, helping you distinguish real gains from lucky runs. It also finds the specific file behind slowness and ranks fixes by potential impact, whereas Lighthouse gives one run and stops.

The free check shows the score, slow file, and a few problems with three free checks daily. Sign in for the full report and 5 free credits to try paid steps once. After that, a pack is $5 for 20 credits. Pro Watch is $19/month with 60 credits monthly, scheduled checks, and alerts.

Can I use it from Cursor or the terminal?

Yes. The website is the easy path, but developers can also use the CLI, connect MCP in Cursor or Claude, or call the HTTP API. Full documentation is available at docs.pafcore.site.

Why did my PafCore score go up but Search Console hasn't changed?

They measure different things on different schedules. PafCore is a lab score for one page loaded now on a simulated phone, while Search Console shows field data from real Chrome users averaged over 28 days. A fix shipped today moves the lab number immediately but the field average takes weeks to show the change.

Can I paste the report into Cursor and let it fix things?

For the fix itself, often yes. The hard part is choosing what to fix. The tool picks whatever number looks worst, not whatever you can win, and it checks its work by running once more. One more run cannot tell a real gain from the score moving by itself. Measuring that move is where PafCore starts.

Monitoring & uptime

PafCore

Find what is slowing your website down to the file, then prove the fix worked

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PafCore runs performance checks to identify slow files on your website and provides uptime monitoring. It loads pages three times to measure real gains and

Overview

A look at pafcore.site

PafCore is a website performance monitoring tool that identifies which files are slowing your site and ranks potential fixes by how many points they could earn. Unlike typical speed tools that give a score and a long checklist, PafCore runs three Lighthouse checks, finds the specific file causing slowness, and helps you prove whether a fix actually worked. It also includes uptime monitoring to alert you when your site goes down, with warnings for SSL certificate and domain expiry.

Feature notes

Three-run performance measurement to distinguish real gains from score variance
Identifies specific slow file causing performance issues
Ranks fixes by potential performance point impact
SSL certificate and domain expiry warnings
CLI, MCP, and API access
Headless Chrome testing on simulated slow 4G connection
Scheduled daily or hourly performance checks with score history

Pricing

Free: score, slow file, and a few problems; three checks daily. $5 for 20 credits (lab checks, verify fixes, file lookup, image download, code to paste). Pro Watch $19/mo includes 20 pages monitored, alerts, certificate warnings, 60 monthly credits. Agency $12 per site/month for up to 25 sites.

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PafCore at a glance

Community votes: 0
Followers: 0

PafCore metrics

Inspection sheet for pafcore.site: Ahrefs Domain Rating and Majestic link metrics, with the delta since the last inspection.
Metric	Value
Domain Rating	26 −1 (down) since last check
Trust Flow	6 no change since last check
Citation Flow	28 no change since last check
Referring domains	19 no change since last check
External backlinks	131 no change since last check

Domain Rating by Ahrefs inspected 6 Nov 2026, adjusted 30 Oct 2026. Primary topic: Computers/Internet/On the Web (5). Majestic inspected 23 Oct 2026, adjusted 23 Oct 2026. Link data: Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.

PafCore domain diagnostics

Run through the diagnostics

Public RDAP record, last read 5 Nov 2026, 00:17 UTC.
Domain age	3 months
Registered	1 Aug 2026
Expires	1 Aug 2027
Registrar	NameCheap, Inc.
DNSSEC	Not signed

Run the full check on pafcore.site

PafCore post-launch diagnostics

Measured after PafCore went live on Launching Pro on 23 October 2026.

Domain Rating (Ahrefs): 26 −1 (down) since launch; 27 at launch (23 Oct 2026), 26 on 6 Nov 2026
Trust Flow (Majestic): 6; First measured 23 Oct 2026
Referring domains (Majestic): 19; First measured 23 Oct 2026

Day 15 since launch. Next receipt: day 30, 22 Nov 2026. The figures report a change; they do not say what caused it, and many things can. No figure here is a guess.

Biggest gains on Launching Pro

Launch tips, free to read

The playbook on Launching Pro lists what to prepare, what to post on launch day and where else to list your product.

Before the day
Launch day
That week
Beyond launch

See the launch playbook

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FAQ

Is this just Lighthouse with a nicer look?: It uses Lighthouse for the raw scores, but differs in two key ways. PafCore loads the page three times and shows how far the score moves on its own, helping you distinguish real gains from lucky runs. It also finds the specific file behind slowness and ranks fixes by potential impact, whereas Lighthouse gives one run and stops.
What will it cost?: The free check shows the score, slow file, and a few problems with three free checks daily. Sign in for the full report and 5 free credits to try paid steps once. After that, a pack is $5 for 20 credits. Pro Watch is $19/month with 60 credits monthly, scheduled checks, and alerts.
Can I use it from Cursor or the terminal?: Yes. The website is the easy path, but developers can also use the CLI, connect MCP in Cursor or Claude, or call the HTTP API. Full documentation is available at docs.pafcore.site.
Why did my PafCore score go up but Search Console hasn't changed?: They measure different things on different schedules. PafCore is a lab score for one page loaded now on a simulated phone, while Search Console shows field data from real Chrome users averaged over 28 days. A fix shipped today moves the lab number immediately but the field average takes weeks to show the change.
Can I paste the report into Cursor and let it fix things?: For the fix itself, often yes. The hard part is choosing what to fix. The tool picks whatever number looks worst, not whatever you can win, and it checks its work by running once more. One more run cannot tell a real gain from the score moving by itself. Measuring that move is where PafCore starts.

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