Features
Describe what to watch in plain language. Chemeroid handles the rest — checks, screenshots, and alerts with context.
What you get
From 15-minute smart checks to timezone-aware scheduling — every tool you need to stay on top of any page.
Paste the URL of any publicly accessible web page and Chemeroid visits it on your chosen schedule — no browser extensions, no code, no API keys required. Whether you are tracking a competitor’s pricing page, a supplier’s product availability, a government grants portal, or a news feed for a specific keyword, Chemeroid treats every URL the same way. It opens the page in a real browser environment, waits for dynamic content to render, and evaluates your condition against the live text. If the page changes its layout over time, Chemeroid still reads what actually appears on screen.
Frequent Smart monitors check your page every 15 minutes — so you find out about a price drop, a product restock, or a policy update within a quarter of an hour, not the next morning. This is the fastest check interval Chemeroid offers and is available on all paid plans. A typical use case: a procurement team monitors a vendor’s discount page and uses the 15-minute interval to catch limited-time offers before they expire. Each check runs independently, and you receive an alert only when your condition first becomes true — not on every single check.
Not every condition needs checking every 15 minutes. Daily and weekly monitors suit slower-moving content — a blog’s update schedule, a career page for new job listings, or a regulatory notice board. Choose the interval when you create the monitor and change it at any time from your dashboard without losing check history. You can also set a custom invocation time per monitor, so a daily check runs at 7 AM in your local timezone rather than at an arbitrary server time. Weekly monitors can be pinned to a specific day and hour.
Write your monitoring condition the way you would explain it to a colleague: “Alert me when the Pro plan drops below $25 per month,” “Notify me if the status page says anything other than all systems operational,” or “Tell me when this item shows an in-stock badge.” Chemeroid passes your condition to an AI that reads the page and decides whether the description is currently true. You do not need to know HTML, CSS selectors, or regular expressions. The AI re-evaluates the condition on every check and adapts automatically if the page layout changes.
For pages with navigation bars, ads, or large amounts of unrelated content, you can optionally supply a CSS class or ID selector to focus the AI on a specific element. If you want to monitor only the price field on a product page, adding the selector restricts evaluation to that element rather than the full page body. This reduces noise, improves alert accuracy, and prevents false positives from unrelated content changes elsewhere on the page. Selector targeting is entirely optional — Chemeroid works without it — but it is valuable when the page is information-dense.
Many pages include navigation bars, cookie banners, chat widgets, and footer content that are irrelevant to what you are monitoring. Custom page height lets you cap the portion of the page that Chemeroid evaluates. Set a pixel height and Chemeroid limits both the screenshot and the AI evaluation to content within that region. This is especially useful for pages with long footers, infinite-scroll areas, or sticky elements that dominate the visual space. A focused evaluation window means the AI works on the section that matters for your condition and ignores everything below the cutoff.
Every check Chemeroid runs captures a full-page screenshot regardless of whether your condition is met. When your condition fires, the alert includes the screenshot taken at the exact moment of detection — so you see precisely what the page looked like when the change occurred. This eliminates ambiguity: you do not need to reload the page yourself to confirm what triggered the alert, and you have a timestamped record for reporting or compliance. Screenshots are stored with your check history and accessible via the shareable result link so teammates can see exactly what changed.
When your condition is met, Chemeroid sends an alert through whichever channels you configured for that monitor: Email, SMS, Slack webhook, or Discord webhook. Each alert includes an AI-written explanation of why the condition matched — not just “condition true,” but a sentence describing what specifically changed on the page. You can assign different channels to different monitors, so a competitor pricing alert goes to Slack while a personal price-drop watch goes to SMS. All four channels are available on paid plans; the Free tier includes email, Slack, and Discord.
Every monitor result — the check status, the AI explanation, and the screenshot — has a unique shareable URL. Copy the link with one click and send it to a teammate, client, or stakeholder. The recipient sees exactly what Chemeroid detected without needing an account or login. This is useful for reporting: a growth team can share a competitor price change with sales, or a procurement analyst can forward a vendor alert directly to their manager for approval. Shared result links do not require authentication and remain accessible as long as the result exists in your history.
Different pages are most reliably checked at different times of day. A retail product page may refresh stock levels at midnight local time; a government notice board may post new entries at the start of the business day. Per-monitor timezone scheduling lets you set each monitor to run at a specific local time in your chosen timezone, independent of where Chemeroid’s servers are located. You configure the check time that makes sense for the page you are watching, and Chemeroid converts it automatically. Daily monitors can be scheduled to the hour; weekly monitors to the day and hour.
Cookie consent popups appear on a large proportion of commercial and government websites, especially those operating under GDPR or similar privacy regulations. When Chemeroid visits a page and detects a consent banner, it dismisses it automatically before evaluating the content or capturing the screenshot. This prevents the overlay from obscuring the page content your condition needs to evaluate and ensures the screenshot shows the actual page rather than a modal covering most of the viewport. Cookie dismissal is handled automatically on every check — you do not need to configure anything or use a special selector to work around consent banners.
Why Chemeroid
Almost any condition you can describe in a sentence. Common examples include price thresholds (“alert me when this drops below $50”), availability (“notify me when this product is back in stock”), content changes (“tell me if this policy page is updated”), and keyword appearances (“alert me if the word ‘discontinued’ appears”). Chemeroid does not limit you to preset condition types — you write the condition, and the AI decides whether the current page satisfies it.
Chemeroid visits the page in a real browser, waits for JavaScript to execute and dynamic content to load, then passes the rendered text to an AI model alongside your condition. The AI reads the page the same way a human would and returns a true or false verdict along with a plain-English explanation of its reasoning. This means it handles price comparisons, contextual phrases, and multi-sentence conditions that simple text-matching or CSS-value extraction cannot express.
Yes. Every check — whether or not your condition is met — captures a screenshot of the page at that moment. When the condition fires, the screenshot is attached to your alert so you see exactly what the page looked like at detection time. You do not need to rush to the page before it changes again. Screenshots are stored in your check history and can be shared with teammates via a direct link that requires no login.
Detection latency depends on the check interval you choose. Smart Frequent monitors run every 15 minutes, so the maximum time between a change occurring on a page and you receiving an alert is 15 minutes. Daily monitors check once every 24 hours at the time you specify. For time-sensitive conditions such as flash sales, back-in-stock events, or breaking announcements, the 15-minute interval on a Smart Frequent monitor is the fastest option available.
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