HTTP Header Checker — BGP Route & ASN Lookup
BGP and ASN routing context — bgp-route backend, not live HTTP response headers
How to Use This Tool
- Enter a public IPv4 address, domain, or ASN in the query field.
- bgp-route validates and routes query to BGPView registry lookup.
- Domains resolve to IPv4 A records before ASN mapping.
- ASN input fetches up to twenty ipv4_prefixes with prefixCount.
- IP input returns originating asn, org, country, and prefix hints.
- Review results before live header checks on sibling security tools.
About This Tool
HTTP header checking inspects response and request headers — Server, Content-Security-Policy, Set-Cookie, HSTS, and cache directives — from live HTTPS connections or curl exports. VSPIC is transparent: http-header-checker calls the bgp-route action with query input — IPv4, resolvable domain, or ASN — returning ASN registry metadata, organization, country, and sample ipv4_prefixes when prefix enumeration succeeds — identical backend to bgp-route-lookup.
There is no live HTTP fetch, header enumeration, or security header grading on this page. For authoritative HTTP header analysis on URLs, use security-headers-checker, cookie-analyzer, or cdn-detector on VSPIC. This page serves HTTP header search demand while explaining bgp-route limitations honestly.
Common use cases
- •Measure download and upload speed
- •Test open ports on a home router or server
- •Trace routing paths to diagnose latency
Why use VSPIC for ?
- Routing ownership context before HTTP security header investigation.
- ASN and org identification for provider escalation on hosting issues.
- Sample prefixes on ASN queries for infrastructure research.
- Same bgp-route JSON as bgp-route-lookup for automation.
- Domain and IPv4 flexible input.
- Free instant lookup — no account required.
HTTP headers versus BGP route lookup
Security header checkers connect to https://host, read response headers, and grade HSTS, CSP, X-Frame-Options, and related directives. Our page performs bgp-route registry lookup — who originates routes for an IP or domain — not application-layer header content.
Run security-headers-checker on the URL after confirming hosting ASN context here when investigations span both layers.
What bgp-route returns
For IP queries: asn, organization, country, and prefix association. For ASN queries: registry metadata plus ipv4_prefixes samples and prefixCount. note explains prefix API availability.
Use org field when header misconfiguration tickets need provider identification.
Relationship to security-headers-checker
security-headers-checker fetches live HTTP headers and security grades for URLs. http-header-checker shares bgp-route JSON with bgp-route-lookup — different backend, complementary workflow.
Do not expect Set-Cookie or Content-Security-Policy rows from this page.
Relationship to cdn-detector
cdn-detector analyzes HTTP headers for CDN provider signals on URLs. http-header-checker does not fetch HTTP — use cdn-detector for Cloudflare, Fastly, and similar header fingerprints.
Relationship to bgp-route-lookup
http-header-checker and bgp-route-lookup both call action bgp-route with identical JSON. SEO pages differ; automation uses one endpoint.
CDN and origin context
Domain input resolves to current A record IPv4 — CDN edges show CDN provider ASN. Pair with origin-ip-finder when origin hosting context matters for header testing scope.
API action bgp-route
GET /ip-tools/api/extended?action=bgp-route&query=example.com. Not a substitute for action security-headers or header fetch endpoints.
Authorized use
Lookup public routing data for networks you analyze. Header security testing on URLs requires authorization on target hosts — use security-headers-checker within scope.
Important notes & limitations
- Does not fetch or analyze HTTP response headers — bgp-route only.
- No CSP, HSTS, or cookie inspection on this page.
- Prefix lists reflect BGPView snapshots — not live routing.
- CDN edge domains may map to CDN ASN, not origin host.
- Use security-headers-checker for live header security grading.
Frequently Asked Questions
Yes. VSPIC offers this HTTP header checker 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 bgp-route ASN lookup. Use security-headers-checker for live HTTP header analysis.
Yes. action bgp-route with query parameter — identical JSON.
Enter domain or IP in query field. Full URL paths are not required for bgp-route.
security-headers-checker on VSPIC — live HTTP header security grading.
SEO framing for search demand. Backend is bgp-route — disclosed transparently.
bgp-route with the query parameter.
Next step for your check
Continue with security headers checker on VSPIC.
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