site-check

97 / 100 · Low risk

Fine to try.

By mohitagw15856/pm-claude-skills (GitHub) · coding · 1,539 stars · scanned at commit edb6995

Answer 'is this site down or is it just me' properly — curl status/timing diagnostics, DNS cross-check, and TLS certificate reads, assembled into a where-it's-broken diagnosis. Use when asked is this website down, why can't I reach this site, check if my site is up, or is the SSL certificate expired. Produces the layered diagnosis (DNS → TLS → HTTP → content), response timing, cert expiry, and the rerunnable commands.

Works with any agent that supports SKILL.md skills.

What this skill can do

Sends data to these websites: example.com, dns.google

This is disclosed by the author in the skill's SKILL.md or README.

Found in 3 places.

skills/site-check/SKILL.md, line 261. **HTTP first (the 5-second answer):** `curl -sI -m 10 -o /dev/null -w "%{http_code} %{time_total}s %{remote_ip}\n" "https://example.com"` — status, total tim
skills/site-check/SKILL.md, line 272. **DNS when connection fails:** `curl -s "https://dns.google/resolve?name=example.com&type=A"` — NXDOMAIN vs. records-exist separates "domain problem" from "s
skills/site-check/SKILL.md, line 283. **TLS when the browser screamed:** `curl -svo /dev/null "https://example.com" 2>&1 | grep -E "expire|subject|issuer"` — expired cert, wrong-host cert, or inc

Other copies in this repository

mohitagw15856/pm-claude-skills has 1 more folder with a skill named site-check. This page shows the lowest-scoring copy.

plugins/pm-live/skills/site-check 97/100 · Low risk

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'site-check' ] || [ -L ~/.agents/skills/'site-check' ]; then echo 'A skill folder named site-check already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/mohitagw15856/pm-claude-skills' "$d" && git -C "$d" checkout --quiet 'edb6995427bac9d948775258a82aeecced60ceb1' -- 'skills/site-check' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/site-check' ~/.agents/skills/'site-check' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'site-check' ~/.claude/skills/'site-check' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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Score history

Date	Version	Score
2026-11-11	`edb6995`	97
2026-11-08	`0246bd4`	97
2026-11-07	`0246bd4`	97