SaaS / Company Site Change Monitor Pro

Extract text from legal pages and automatically monitor website terms of service, privacy policies, and compliance documents for critical updates. Corporate legal teams, compliance officers, and vendor risk managers rely on this specialized scraper to track third-party policy changes without manual review. Schedule the scraper to run weekly or daily across a list of vendor URLs to extract the exact text of their service agreements and legal notices.

Using advanced SHA256 snapshot diffing, the tool evaluates the newly scraped data against historical versions to pinpoint exact modifications. It outputs a clear diff summary showing precisely which clauses were added, altered, or removed. This is essential for detecting silent updates to data processing agreements, liability limitations, or subprocessor lists that vendors often change without direct notification.

The extracted structured data includes the page URL, timestamp, full text snapshot, and a detailed array of text differences. By automating the monitoring of these websites, teams can proactively manage vendor risk and ensure continuous compliance. Rely on this web scraper to track pages, extract policy details, and provide the exact textual evidence needed to maintain a secure supply chain.

Store Quickstart

Run this actor with your target input. Results appear in the Apify Dataset and can be piped to webhooks for real-time delivery. Use dryRun to validate before committing to a schedule.

Key Features

• • **複数ターゲット監視 (price|terms|features|general** — 複数ターゲット監視 (price|terms|features|general`)
• • テキスト抽出 + SHA256スナップショット管理 — テキスト抽出 + SHA256スナップショット管理
• • 変更サマリ（追加/削除行） — 変更サマリ（追加/削除行）
• • Apify KV が使えない環境でもローカル state/ にフォールバック — Apify KV が使えない環境でもローカル state/ にフォールバック

Use Cases

Who	Why
Developers	Automate recurring data fetches without building custom scrapers
Data teams	Pipe structured output into analytics warehouses
Ops teams	Monitor changes via webhook alerts
Product managers	Track competitor/market signals without engineering time

Input

Field	Type	Default	Description
targets	array	prefilled	List of targets. Each item supports id, name, kind, url, includePatterns, excludePatterns, maxChars, fixtureHtml, fixtur
requestTimeoutSeconds	integer	30	HTTP request timeout per target.
userAgent	string	—	Optional user-agent header for target requests.
maxChars	integer	25000	Upper bound for extracted text length.
delivery	string	"dataset"	Where to send run results.
datasetMode	string	"changes_only"	Choose whether dataset/webhook sends all targets or only event items.
webhookUrl	string	—	Required when delivery is webhook.
notifyOnNoChange	boolean	false	When false, webhook mode skips if no event items.

Input Example

{
  "targets": [
    {
      "id": "notion-pricing",
      "name": "Notion Pricing",
      "kind": "price",
      "url": "https://www.notion.so/pricing",
      "includePatterns": [
        "price",
        "free",
        "business",
        "enterprise"
      ],
      "excludePatterns": [
        "cookie",
        "login"
      ]
    }
  ],
  "requestTimeoutSeconds": 30,
  "maxChars": 25000,
  "delivery": "dataset",
  "datasetMode": "changes_only",
  "notifyOnNoChange": false,
  "snapshotKey": "saas-change-monitor-snapshots",
  "dryRun": false
}

Input Examples

Example: Single-target audit

{
  "targets": [
    "example-target-1"
  ],
  "maxResultsPerTarget": 30
}

Example: Bulk portfolio

{
  "targets": [
    "target-1",
    "target-2",
    "target-3"
  ],
  "maxResultsPerTarget": 50,
  "snapshotKey": "saas-change-monitor-actor-premium-state"
}

Example: Recurring delta watch

{
  "targets": [
    "target-1"
  ],
  "snapshotKey": "saas-change-monitor-actor-premium-state",
  "emitChangedOnly": true
}

Output

Field	Type	Description
meta	object
results	array
results[].id	string
results[].name	string
results[].kind	string
results[].url	string
results[].capturedAt	timestamp
results[].changed	boolean
results[].status	string
results[].hash	string
results[].previousHash	string
results[].previousCapturedAt	string
results[].lineCount	number
results[].changeSummary	object
results[].preview	string
results[].error	string
results[].finalUrl	string

Output Example

{
  "status": "ok",
  "data": []
}

API Usage

Run this actor programmatically using the Apify API. Replace YOUR_API_TOKEN with your token from Apify Console → Settings → Integrations.

cURL

curl -X POST "https://api.apify.com/v2/acts/taroyamada~saas-change-monitor-actor-premium/run-sync-get-dataset-items?token=YOUR_API_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{ "targets": [ { "id": "notion-pricing", "name": "Notion Pricing", "kind": "price", "url": "https://www.notion.so/pricing", "includePatterns": [ "price", "free", "business", "enterprise" ], "excludePatterns": [ "cookie", "login" ] } ], "requestTimeoutSeconds": 30, "maxChars": 25000, "delivery": "dataset", "datasetMode": "changes_only", "notifyOnNoChange": false, "snapshotKey": "saas-change-monitor-snapshots", "dryRun": false }'

Python

from apify_client import ApifyClient

client = ApifyClient("YOUR_API_TOKEN")
run = client.actor("taroyamada/saas-change-monitor-actor-premium").call(run_input={
  "targets": [
    {
      "id": "notion-pricing",
      "name": "Notion Pricing",
      "kind": "price",
      "url": "https://www.notion.so/pricing",
      "includePatterns": [
        "price",
        "free",
        "business",
        "enterprise"
      ],
      "excludePatterns": [
        "cookie",
        "login"
      ]
    }
  ],
  "requestTimeoutSeconds": 30,
  "maxChars": 25000,
  "delivery": "dataset",
  "datasetMode": "changes_only",
  "notifyOnNoChange": false,
  "snapshotKey": "saas-change-monitor-snapshots",
  "dryRun": false
})

for item in client.dataset(run["defaultDatasetId"]).iterate_items():
    print(item)

JavaScript / Node.js

import { ApifyClient } from 'apify-client';

const client = new ApifyClient({ token: 'YOUR_API_TOKEN' });
const run = await client.actor('taroyamada/saas-change-monitor-actor-premium').call({
  "targets": [
    {
      "id": "notion-pricing",
      "name": "Notion Pricing",
      "kind": "price",
      "url": "https://www.notion.so/pricing",
      "includePatterns": [
        "price",
        "free",
        "business",
        "enterprise"
      ],
      "excludePatterns": [
        "cookie",
        "login"
      ]
    }
  ],
  "requestTimeoutSeconds": 30,
  "maxChars": 25000,
  "delivery": "dataset",
  "datasetMode": "changes_only",
  "notifyOnNoChange": false,
  "snapshotKey": "saas-change-monitor-snapshots",
  "dryRun": false
});

const { items } = await client.dataset(run.defaultDatasetId).listItems();
console.log(items);

Tips & Limitations

• Schedule weekly runs for procurement watchlists; daily for critical vendors.
• Use webhook delivery to drop diffs into a shared procurement Slack channel.
• Track competitor pricing quarterly to inform your own pricing strategy.
• Store snapshots persistently — these are valuable for contract renegotiation evidence.
• Combine with vendor-change-monitor for term-level changes alongside pricing.

FAQ

How are diffs computed?

Semantic diff on structured fields (prices, plan names, feature tables) rather than raw HTML — filters out cosmetic changes.

What happens if a vendor redesigns their site?

The actor falls back to best-effort structured extraction; material redesigns may require a vendor-specific adapter update.

Can I track changes to downloadable contracts/PDFs?

The actor tracks content text; PDF-only vendors with dynamic URLs may require manual review.

Does this bypass anti-bot measures?

No — it uses standard requests. Some vendors with aggressive bot protection may not be monitorable; report these issues and we'll adjust fetch strategy.

Can I monitor internal portals?

No — this actor is public-web only. Internal portals with auth are out of scope.

Related Actors

SaaS & Vendor Monitoring cluster — explore related Apify tools:

• SaaS Pricing & Terms Monitor API — Monitor pricing, terms, and feature pages with machine-readable diffs, snapshot history, and dataset/webhook delivery.
• Vendor Pricing, Terms & Renewal Watch API — Monitor vendor pricing changes, terms-of-service updates, renewal language, privacy / DPA policy diffs, and procurement / vendor-risk alerts with one summary-first vendor digest per monitored vendor.
• Vendor Status Page & Incident Digest Monitor — Monitor public vendor status pages and incident feeds.

Cost

Pay Per Event:

• actor-start: $0.01 (flat fee per run)
• dataset-item: $0.003 per output item

Example: 1,000 items = $0.01 + (1,000 × $0.003) = $3.01

No subscription required — you only pay for what you use.

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