Third-Party Script Analyzer — IP & Domain Reputation
Reputation and blocklist context for third-party script hosting IPs and domains
How to Use This Tool
- Enter a public IPv4 address or domain hosting third-party scripts.
- Domains resolve to current A record IPv4 before reputation lookup.
- Parallel DNSBL and supplemental list queries populate listedOn and detections.
- Geolocation adds VPN, proxy, hosting, mobile, country, and org fields.
- fraudScore from zero to one hundred maps to riskLevel low, medium, or high.
- Review detections, listedOn, and geo flags before allowing script loads.
About This Tool
Security and privacy reviews of third-party JavaScript often start with who hosts the script — a CDN edge, bulletproof hosting, or flagged malware infrastructure changes risk posture before reading minified source. VSPIC third-party script analyzer calls the reputation action with your query — IPv4 or resolvable domain — resolves domains to IPv4 when needed, queries DNS blacklists and supplemental lists, enriches geolocation with VPN, proxy, hosting, and mobile flags, and returns fraudScore, riskLevel, detections array, listedOn zones, and geo context.
This page frames third-party script analyzer SEO vocabulary while the backend matches ip-reputation-checker — composite reputation, not HTML script parsing. For actual script URL enumeration and technology buckets from page HTML, use website-technology-detector or attack-surface-scanner with tech-detector, which returns scriptSamples and analytics category detections.
Common use cases
- •Check your public IP before remote work or gaming
- •Verify geolocation and ISP for troubleshooting
- •Look up suspicious IPs in abuse reports
Why use VSPIC for ?
- Composite reputation for script hosting IPs and domains in one lookup.
- fraudScore and riskLevel for quick supply-chain triage.
- detections array names VPN, Proxy, Hosting, Botnet, and Malware rows.
- listedOn shows specific DNSBL zones when listed.
- Domain and IPv4 input with automatic resolution.
- Free instant lookup — no account required.
Script analysis versus host reputation
True third-party script analysis inspects DOM script src attributes, Subresource Integrity tags, Content-Security-Policy allowlists, and minified source for exfiltration patterns. Our page answers a complementary question: what reputation and blocklist signals exist for the IPv4 or domain hosting those scripts?
Run tech-detector on the page URL for scriptSamples and technologies buckets, then reputation-check suspicious external hostnames discovered in DevTools.
What reputation returns
fraudScore aggregates DNSBL hits, VPN/proxy/hosting flags, and supplemental signals into zero-to-one-hundred scale with riskLevel bands. detections array lists human-readable status rows — DNS Blacklists, VPN, Proxy, Hosting, Botnet, Malware reputation.
listedOn enumerates specific zones when listed. geo adds country, org, and infrastructure flags explaining datacenter versus residential context.
Supply chain workflow
Inventory script src domains from tech-detector scriptSamples or browser network tab. Reputation-check each unique external hostname before approving CSP changes. Flag high fraudScore hosts for vendor review or SRI enforcement.
Document approved third-party vendors separately — reputation drift over time warrants periodic rechecks.
Relationship to tech-detector and attack-surface-scanner
website-technology-detector and attack-surface-scanner call action tech-detector with url parameter — returning scriptSamples, linkSamples, technologies, and category buckets from HTML and headers.
third-party-script-analyzer calls action reputation — different backend, complementary workflow. Use both when hardening third-party script posture.
Relationship to ip-reputation-checker
Both pages call action reputation with identical JSON shape. ip-reputation-checker uses IP reputation SEO vocabulary; third-party-script-analyzer targets operators investigating script hosting infrastructure.
API consumers use query parameter with IPv4 or domain interchangeably.
DNSBL interpretation for script hosts
Listing on malware-oriented zones warrants immediate investigation — verify whether your site loads scripts from that host. Clean listing does not certify benign script behavior — obfuscated exfiltration evades blocklists.
Delisting tickets require evidence of remediation at the hosting provider.
VPN, proxy, and hosting flags
Script CDNs normally show hosting or datacenter flags — expected for Cloudflare, jsDelivr, and similar edges. Unexpected VPN or proxy flags on purported static asset hosts may indicate bulletproof or anonymized infrastructure worth escalation.
Compare org field against known vendor ASN ownership.
API action reputation
GET /ip-tools/api/extended?action=reputation&query=8.8.8.8 or query=cdn.example.com. Parse fraudScore, riskLevel, detections, listedOn, geo. Cache briefly in automation — list status changes.
Respect rate limits when bulk-checking script domains from large site inventories.
Authorized assessment
Check hosts you load on owned sites or are contracted to review. Reputation lookup queries public lists — document scope in vendor security questionnaires.
We do not permanently store your searches.
Important notes & limitations
- Does not fetch or parse JavaScript source code from URLs.
- Does not enumerate script tags on a page — use tech-detector URL tools.
- DNSBL listing is not proof of malicious script content — investigate further.
- Reputation reflects query-time list status — recheck before permanent blocks.
- Shared hosting IPs may reflect co-tenant reputation, not your script host alone.
Frequently Asked Questions
Yes. VSPIC offers this third-party script analyzer at no cost with no account required. Results load in real time.
We do not permanently store your queries on our servers. Some tools run entirely in your browser; others fetch public data for the request only.
Yes. Open the page in any modern phone or tablet browser. Results work on Wi‑Fi and mobile data.
No. It runs reputation on IPv4 or domain. Use tech-detector URL tools for scriptSamples from page HTML.
Yes. Both use action reputation with query parameter. JSON fields are identical.
Enter the hostname or IPv4 of the script host. Full URLs with paths are not required — domain or IP suffices.
No. Reputation reflects infrastructure signals, not code review. Inspect script content and CSP separately.
Use website-technology-detector scriptSamples or browser DevTools Network tab, then reputation-check each external domain.
reputation with the query parameter.
Next step for your check
Continue with ip reputation checker on VSPIC.
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