Website change monitor API
Turn authorized public pages into structured additions, removals, hashes, and change ratios—ready for agents, alerts, and review queues.
{
"status": "changed",
"changeRatio": 0.184,
"added": [
"Team plan now includes 15 projects.",
"Priority support is included."
],
"removed": [
"Team plan includes 10 projects."
],
"previousHash": "a12f…91c",
"currentHash": "e84b…0d7"
}A screenshot says something moved.
A hash says something changed.
Blaidlink shows the exact evidence.
Scope before you build
Use the free four-page diagnostic to expose vague outcomes, unsafe access, and unlimited revisions. When the project is a fit, turn the answers into a working scope and handoff package.
Free · $0 minimum
Ten client questions, concrete red flags, and a fast go / clarify / decline score for n8n, Make, Zapier, API, and data-automation work.
Complete kit · $15 once
Convert discovery into a bounded scope, credential-safe access plan, risk register, change log, acceptance criteria, and evidence-ready handoff.
Operational templates only; not legal, security, privacy, tax, or compliance advice. Never place passwords, private keys, recovery codes, or seed phrases in project documents.
Free interactive tool
Score an automation request in under two minutes. Get a quote posture, contingency range, milestone recommendation, and the next questions to resolve. Your answers stay in this browser.
Open the standalone calculatorSee when this helps
“Connect Shopify to Airtable, keep inventory synced, alert Slack when orders fail, and finish by Friday. What will it cost?”
The request sounds specific, but it leaves ownership, failure handling, live-data access, acceptance, and revisions unanswered.
Planning aid only—not legal, security, privacy, tax, or financial advice. The score does not replace technical discovery or a written agreement.
Fixed-scope services
Start with a bounded deliverable, a visible price, and a handoff you can verify. No retainers, paid discovery calls, or credential sharing.
Live on Fiverr
Core-flow testing for AI apps, chatbots, and SaaS products with reproducible findings, severity, screenshots, and a concise launch recommendation.
View the live GigLive on Fiverr & Contra
Trace a failing automation, API, or data flow; receive prioritized evidence, bounded fixes, test notes, and a maintainable handoff.
Productized delivery
Turn authorized public data into a monitored feed, evidence trail, and decision-ready dashboard without treating noisy changes as facts.
Discuss a monitoring buildLive on Fiverr & Contra
Track bounded public pages or APIs for price, product, policy, inventory, or competitor changes and receive timestamped source evidence with structured JSON or CSV output.
Live on Fiverr & Contra
Turn one authorized dataset into normalized output, a documented schema, deterministic validation results, and a separate exceptions sheet without silently discarding records.
Only share test data and least-privilege, revocable access when required. Never send passwords, recovery codes, private keys, or seed phrases.
Five live Apify Actors
Use one bounded public-data workflow, pay only for declared lifecycle events, and keep the structured dataset for your own agents, alerts, and review queues.
Authorized public pages
Capture exact additions, removals, hashes, and change ratios against a caller-isolated baseline.
SAM.gov
Filter recent opportunities to explicit buyer criteria and explain qualified new records and material amendments.
USAspending.gov
Track qualifying first-seen award activity, modifications, and deobligations with source-linked evidence.
CFPB complaints
Detect statistically supported complaint-rate spikes and emerging product/issue concentrations without retaining narratives.
CPSC recalls
Watch a bounded supplier or product scope for new recall exposure and material source changes.
Apify platform usage is billed separately by Apify. Prices describe live declared events, not guaranteed result counts or business outcomes.
Reproducible workflow
Use the controlled fixture below. Its tracked pricing copy alternates once per UTC minute; everything outside #tracked-copy is ignored.
The same public URL changes on a predictable schedule and sends no cookies or personal data.
/fixtureInspect ↗First run
Set contentSelector to #tracked-copy. The first successful run stores normalized text and its hash.
After the minute changes
The Actor compares against the caller’s isolated baseline and emits sentence-level evidence.
Automate
Use an Apify Task for recurring runs, then route the stable dataset schema into your agent or alerting workflow.
Reproducible workflow repair
A deliberately broken fixture and its repaired counterpart show exactly how the audit handles retries, separate error outputs, and secret-safe failure records.
Fetch Suppliers
onError: continueErrorOutput
retryOnFail: missing
main[0] → Normalize Suppliers
main[1] → [unwired]Fetch Suppliers
retry: 3 attempts · 5s delay
main[0] → Normalize → Success
main[1] → Sanitize Error
→ Error RecordedThe fixture uses a reserved .invalid URL, no credentials, and no personal data. This proves the documented workflow structure—not a hosted execution, client result, or uptime claim.
Reproducible data cleanup
A synthetic Excel fixture shows the complete handoff: messy input, normalized output, source-row traceability, reason-coded exceptions, a visible schema, and formula-driven QA totals.
synthetic order rows
normalized records
retained with reasons
formula-driven passes
Input defects
duplicate ID · missing ID · invalid email · invalid date · negative amount · unsupported statusAuditable delivery
QA Summary · Raw Input · Cleaned Output · Exceptions · Data DictionaryThis is a reproducible synthetic demonstration—not client data, a testimonial, a paid result, or revenue. Buyer records are never silently discarded.
Clean one dataset · $25Product contract
CSS selection and configurable ignore rules remove navigation, scripts, and known page noise before comparison.
Added and removed sentences sit beside previous/current hashes and the normalized change ratio.
Public HTTP(S) only, private-network blocking, response-size limits, optional robots enforcement, and no browser fingerprinting.
Transparent economics
Blaidlink charges $0.005 per page-monitored event. Apify platform usage is billed separately by Apify. Maximum-run-charge controls can cap buyer spend.
Responsible use: monitor only pages you are authorized to access. Respect applicable terms, robots rules, copyright, privacy requirements, and rate limits. Results are change-screening evidence, not legal or compliance advice.