Evidence · first-party tested/Best AI Tools to Scrape Web Pages Into Clean Markdown or Structured Data
It can preserve the main recipe content accurately, keeping the central ingredients block and recipe directions layout intact.
What was measured
Schema Extraction Integrity
How accurately the tool outputs the requested structured data with the correct fields and valid formatting.
decisive for this rankingtransformation
Accurate fields and valid formatting are central to structured-data extraction quality. (3 of 3 judges)
What was given, what came back
Test input: Glassdoor software engineer jobs behind sign-in modal · mixed · group: web-scraping-benchmark
Input — what we sent
Input, verbatim
https://www.glassdoor.com/Job/software-engineer-jobs-SRCH_KO0,17.htm — Dismiss any immediate sign-in or signup modal overlays that block the view. Once cleared, extract the top 5 job listings, including job title, company name, location, and the short summary snippet.
A Glassdoor jobs listing page protected by Cloudflare and a sign-in/interstitial overlay, used to test proxy evasion, anti-bot handling, and the ability to dismiss blocking modal UI before extracting listings.
Output — unretouched
No output artifact
The verdict rests on the tester's written observation alone — no file was captured for this cell.
Also checked on this input — same tool, 7 other criteria
Noise Filtering✗ FailedThe scraper fails to strip static boilerplate from cluttered pages: the markdown included the global header navigation, social-sharing URLs, cookie-choice notices, and user reviews instead of isolating only the core recipe content.Output Quality✗ FailedReturned zero job payload; the output text consisted entirely of multilingual CAPTCHA strings and security warnings.Output Quality◐ MixedThe extractor preserves the main recipe content accurately, including the ingredients block and directions layout, but the returned markdown is highly unrefined and bloated with boilerplate text.Output Quality◐ MixedThe extractor can cleanly capture static structural text and basic marketing attributes, but it misses vital dynamic transactional nodes on hydrated pages.Proxy Evasion✗ FailedIt was stopped by the site's security interstitial and returned only anti-bot warning text instead of the target listings, showing no recovered job content.Proxy Evasion✗ FailedNative proxy handling fails against anti-bot protection, triggering a full 'Humans only' Cloudflare-style block page instead of the target listings.Visual Spatial Awareness✗ FailedIts structural-cleanup is weak on cluttered static pages: it leaves global navigation links, social-sharing URLs, cookie notices, and user reviews in the markdown instead of isolating the core page content.
Provenance
- Observation
- 5d31e225-3519-47b9-97f4-420a31f39baa
- Evidence run
- 06e1dbd6-5518-4af8-aa1a-735259a75b4f
- Study
- Scrape Web Pages Into Clean Markdown or Structured Data Using AI
- Research task
- 86b9jm3a3
- Tested at
- Jun 23, 2026
- Source
- first-party
- Evidence state
- observed
- Proof shown
- input only
- Cost / latency
- not captured
- Repeat run
- not captured
- Tester
- not captured
The last three rows are honest blanks, not placeholders — our capture has no field for them yet.
Query this
get_evidence({
tool: "spider",
scenario: "web-scraping-benchmark"
})MCP · mcp.aidemos.com/api/mcp
Free with attribution.
Same input, same check — 3 other tools
measured on Schema Extraction Integrity
Firecrawl✓ WorkedThe extractor returned the core job-listing payload accurately, including active software engineering listings, corporate profile names, salary estimates, and required technical skill arrays.Jina AI Reader✗ FailedCan break entirely when URL handling loops or duplicates the target path: the report says the primary output became completely useless for data compilation after an address-resolution bug.Skyvern✓ WorkedProduces deterministic structured job records with the requested fields; the visible output shows multiple listings with consistent company, location, and summary keys, including the first three entries.
This evidence is published in
Real inputs and real outputs, no retouching · every cell queryable via API & MCP · aidemos.com