1
Step 1
Select Your Goal
What should this monitor watch for? We'll set up the right detection, filters, and alerts that you can customize later.
Privacy-first · Runs 100% locally · No accounts
SEO & CONTENT
Catch SEO breaks the moment they ship.
9 signal groups, 4 severity levels, keyword tracking on every page. Built for in-house SEO teams and agencies managing client portfolios.
A developer removes a canonical tag while cleaning up a template. A CMS update rewrites the H1. A content migration accidentally adds a noindex directive to a category that drives thirty percent of your organic traffic. Structured data breaks when a schema field is removed from a product template. None of these changes announce themselves.
By the time you notice in Search Console, weeks have passed. Crawl cycles mean the impact may not even show up in your impression data for another ten days. You are debugging a problem that happened a month ago, with no record of when it changed, what it looked like before, or which deployment caused it.
"By the time Search Console shows the damage, the change is a month old."
PageSignal watches your SEO signals around the clock and alerts within the next check interval — early enough to investigate before a small technical change becomes a ranking problem.
Nine SEO signal groups.
Detection is organized across nine groups that map to the areas of a page that affect search performance — indexability, search metadata, content structure, structured data, internal links, ecommerce, international, social metadata, and page experience. Each group catches a specific class of change: noindex additions, title/meta rewrites, canonical pivots, schema breaks, hreflang deletions.
- Indexability · Search metadata · Content structure
- Structured data · Internal links · Ecommerce
- International · Social metadata · Page experience
Four severity levels.
Every change gets a severity assignment: critical, high, medium, or low. Critical catches noindex appearing on indexable pages, canonical pointing at unrelated URLs, structured data being removed, hreflang sets being deleted. High covers title-tag wipes and meta-description clears. Medium covers heading structure shifts. Low flags informational metadata. Set a minimum threshold per monitor — high-priority pages on medium+, lower-priority on critical-only.
Target keyword tracking.
Up to 20 keyword targets per monitor, each up to 80 characters. PageSignal alerts when your target keywords appear in — or disappear from — the title tag, the H1, or both. This matters because title and H1 keyword presence is one of the clearest on-page ranking signals, and one of the easiest things for a CMS or editor to accidentally remove.
- Up to 20 keywords per monitor
- Title and H1 tracked separately
- Alerts on appearance or disappearance
Multi-site portfolios for agencies.
Profiles group monitors by client or domain. Open the dashboard, filter to one client, see only their monitors and recent changes. Labels add cross-cutting categorization by page type — homepage, category, product, blog post, landing page — so you can scope to "all product page structured data changes across every client" in a single view.
USE CASES Built for
Built for
the way SEO breaks.
Post-deploy SEO checks
SEO detection with critical/high threshold on your highest-traffic pages. Catch noindex, canonical, and structured-data changes within the next check interval after every deployment.
Competitor top-ranking pages
Identify the pages ranking above you for your target keywords. Text and layout detection alerts you when a competitor expands their coverage of a topic or restructures content.
Schema break detection
SEO detection with critical severity for structured-data signals on your product page template. When a required schema property is removed, you get alerted before rich result eligibility is affected.
Weekly AI-summarized client digest
Configure weekly digest notifications with AI summary enabled. Every Monday, receive a digest that explains in plain language which client sites had meaningful SEO changes and what the impact might be.
CMS-update indexation checks
Plugin upgrades and CMS platform updates are common causes of site-wide SEO configuration changes. Monitors on representative pages across each page type catch indexability shifts before you complete the update review.
Hreflang monitoring
International SEO is fragile. An hreflang attribute pointing to the wrong region can send the wrong language version of a page to the wrong market. SEO detection on key pages catches these the moment they ship.
Open Graph & social metadata
OG tags control how pages appear when shared on social platforms. Monitor social metadata changes on high-share pages so you catch broken OG configurations before they affect distribution.
Robots & meta-robots directives
A single change to robots.txt can block entire sections from being crawled. Text monitors on robots.txt and SEO detection on high-value pages catch file-level and page-level indexation changes in real time.
Competitor schema strategy
Track structured data on your top competitors' key pages. When they add new schema types or implement markup you do not have, you receive an alert with what changed and what it means for their rich-result eligibility.
Features Everything you need to
Everything you need to
track the web
Six detection modes
Text, layout, visual diffs, price/number tracking, SEO signals, and AI-evaluated changes. Run one alone or combine them with AND/OR gating on the same monitor.
Visual Text Layout Price SEO AI
Point-and-Click
Select any element on a page to monitor just that — a price, button, paragraph, anything.
Briefs
Get a daily brief of what matters most across the pages you watch.
Smart Noise Filtering
Strips ads, timestamps, and carousels. Only real changes reach you.
Real Browser Captures
Checks pages in a real browser so JavaScript, sessions, and dynamic content render correctly.
Conditional Logic Gates
Set rules like "notify me only if price drops below $50" or "alert when 'Sold Out' disappears."
IF price < $50.00
THEN Notify → Desktop + Telegram
BYOK AI
OpenAI, Anthropic, Google Gemini, or local Ollama. Your key, your model, your route — plain-English summaries of every change.
Login-Protected Sites
Reuses your active browser session to monitor pages behind authentication.
Anti-Bot Mode
Human-like rendering with jitter bypasses Cloudflare and bot detection.
NOTIFICATIONS Alerts for
Alerts for
severity-driven response.
Email digest for weekly client reports · Webhook into ticketing or Telegram · Telegram for on-call critical alerts.
Email
Monday · 09:00 Subject
Weekly digest · 14 changes across 8 monitors
Webhook
POST · 200 OK { "event": "change.detected", "monitor": "..." }
Telegram
@pagesignal_bot · 14:43 🔔 Change detected — tap to review the diff
Desktop
2 min ago Page changed on amazon.com · -$120
How It Works Set it up in seconds
Set it up in seconds
in 60 seconds.
No accounts, no cloud, no complicated setup.
2
Step 2
Choose what to track
Pick one of six detection modes — or combine them with AND/OR gating on a single monitor.
3
Step 3
Set your rules
Schedule (60s–24h), text match rules, price thresholds, AI focus instructions, noise filters.
4
Step 4
Get notified
Desktop, email, Telegram, or webhook — immediate, grouped, or digest.
Privacy-First What makes us
What makes us
different.
No accounts. No cloud. No tracking. Everything stays on your device.
100% Local
Nothing touches a remote server.
No Account
No sign-ups or personal info.
Zero Telemetry
No analytics, no phone-home.
Full Export / Migration / Backups
YML and ZIP backups, anytime.
PageSignal
Cloud monitors
Browser extensions
Runs locally
Yes
No
Sometimes
Cloud account
No
Yes
Sometimes
Local backup
Yes
No
Limited
Real browser capture
Yes
Sometimes
Limited
Login-protected pages
Yes
Limited
Limited
AI summaries
Optional
Sometimes
Limited
Runs locally
PageSignal Yes
Cloud monitors No
Browser extensions Sometimes
Cloud account
PageSignal No
Cloud monitors Yes
Browser extensions Sometimes
Local backup
PageSignal Yes
Cloud monitors No
Browser extensions Limited
Real browser capture
PageSignal Yes
Cloud monitors Sometimes
Browser extensions Limited
Login-protected pages
PageSignal Yes
Cloud monitors Limited
Browser extensions Limited
AI summaries
PageSignal Optional
Cloud monitors Sometimes
Browser extensions Limited
FAQ SEO
SEO
questions.
How does PageSignal detect SEO changes?
PageSignal renders the page with a real browser engine — JavaScript executes, client-side meta tags resolve, JSON-LD injected by JavaScript is captured. Detection then compares the rendered DOM against the previous capture across 9 signal groups (indexability, search metadata, content structure, structured data, internal links, ecommerce, international, social metadata, page experience).
Can I monitor competitor SEO without their permission?
Yes. PageSignal monitors competitor pages the way a regular browser would — public pages are public. The site operator sees an ordinary browser session, not a labeled monitoring tool. PageSignal does not send anything to the page operator about who or what is monitoring.
What does keyword tracking actually check?
For each monitor you configure up to 20 target keywords (max 80 chars each). PageSignal alerts when those keywords appear in or disappear from the title tag, the H1, or both. This catches the case where a CMS update silently replaces a keyword-rich H1 with a generic template value.
Does it work on JavaScript-rendered single-page apps?
Yes. PageSignal uses a real browser engine — JS executes before detection runs. Meta tags injected by React frameworks, canonical tags written by headless CMSs after page load, and JSON-LD generated client-side are all captured from the rendered DOM, which is much closer to what modern search rendering systems evaluate.
How do I scope a digest to one client?
Profiles group monitors by client. Notification rules can target a profile, so a digest configured against one profile delivers only that client's changes. For agency teams, this is the basis of a weekly per-client SEO report.
Ready to catch SEO breaks before rankings move?
Catch the change. Keep the rankings.
Download macOS · Windows · v3.2