Custom extraction

Custom extraction alerts for page-specific changes

Select a page element, test the extracted value, and route meaningful selector-based changes through Crawle's alerts, digests, webhooks, exports, and MCP/API context.

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Custom extraction overview

EXTRACTION · active rules · visual selector · bounded monitoring

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Custom extraction

Monitor selected page elements — prices, availability, campaign copy, compliance text — using the normal crawl pipeline.

Crawled 12m ago

Active rules

0/ 8

4 slots remaining.

Values tracked0

Open events0

Total rules0

Extraction rules

4 of 5 enabled · 4,934 current values tracked

Product priceText contentPath starts with /products
.product__price .amount
1,284 matched
Critical
Stock availabilityAttributePath starts with /products
[data-availability]
1,192 matched6 pending
Error
Promo banner copyText contentAll URLs
.campaign-hero .headline
142 matched3 missing
Warning
Compliance footer textInner HTMLAll URLs
footer .legal-disclaimer
2,310 matched
Warning
Review rating valueAttributePath starts with /products
[itemprop="ratingValue"]
0 matched
Notice

Recent extraction results

Detected changes, missing values, and newly appeared values from the latest crawls.

			Value
Feb 18, 9:12 AM	Product price	Changed	$129.00$99.00	/products/aurora-headphones	Open
Feb 18, 8:47 AM	Stock availability	Changed	in_stockout_of_stock	/products/cedar-desk-lamp	Open
Feb 18, 8:05 AM	Promo banner copy	Missing	Spring sale — 20% off(empty)	/	Open
Feb 17, 10:31 PM	Product price	Appeared	(empty)$54.50	/products/linen-tote-bag	Open
Feb 17, 7:58 PM	Compliance footer text	Changed	© 2025 Crawle Demo Inc.© 2026 Crawle Demo Inc.	/about	Ignored

Bounded monitoring Rule limits keep selector checks predictable for continuous crawls instead of creating an unlimited scraper path.

Visual selector Users can pick an element visually, then edit the generated selector when they need more control.

Custom extraction lives inside the normal site monitoring workflow, with active-rule limits and clear setup states.

The problem

Some client risks do not live in standard SEO fields. Prices, stock labels, campaign badges, compliance copy, and template-specific text can change without touching title, canonical, robots, links, or status code.

The outcome

Crawle lets teams define bounded extraction rules from real page elements, test the matched value before saving, and treat meaningful changes as monitored signals inside the same alert workflow.

Visual element selection for users who do not want to start with a selector.
Advanced selector editing for technical SEO teams.
Test runs show matched value, HTTP status, and whether the rule would alert.
The first successful extraction becomes the baseline; later crawls compare normalized values.
Custom extraction signals can route through alert windows, Slack, Teams, email, webhooks, exports, and MCP/API context.
Per-site rule limits keep monitoring predictable for large continuous crawls.

Workflow

From crawl signal to team action

Choose the element

Enter a verified site URL and use the visual selector to pick the element Crawle should monitor, or edit the generated selector in advanced mode.

Test the extraction

Run a test before saving. Crawle shows the extracted value, HTTP status, match behavior, normalization, and alert simulation.

Monitor the baseline

The first successful extraction becomes the baseline. Later crawls compare the normalized value and only route changes that match the rule.

Where teams use it

Price, stock, and product-label monitoring.

Template copy and compliance text checks.

Campaign badges or offer text changing between releases.

Agent and webhook workflows that need page-specific signals.

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