Marketing Qualified Lead (MQL)
CONCEPT
REVENUE OPERATIONS
A lead whose engagement and profile data meet agreed marketing qualification criteria, flagging it for sales review or further nurturing.
CONCEPT
SEARCH OPTIMIZATION
301 Redirect
An HTTP response indicating that a resource has moved permanently and directing clients and crawlers to its new URL.
BUSINESS RELEVANCE
301 redirects preserve user journeys and search equity during URL changes, migrations, renames, and content consolidation while reducing broken links.
IMPLEMENTATION EXAMPLE
When a glossary term is renamed, the former URL returns a 301 directly to the new canonical term page and the sitemap and internal links are updated.
LIMITATIONS
Long chains, loops, irrelevant destinations, soft redirects, and conflicting canonical signals can delay crawling or cause unexpected indexing. A 301 does not repair poor migration planning automatically.
TECHNICAL EXPLANATION
The server returns status code 301 with a Location header. Browsers follow the destination, and search engines generally treat the redirect as a strong signal to consolidate indexing signals at the new URL. Redirects should point directly to the closest equivalent destination.
Secondary Topics
Systems Architecture
Sources
Google Search Central — Redirects — https://developers.google.com/search/docs/crawling-indexing/301-redirects; IETF RFC 9110 — HTTP Semantics — https://www.rfc-editor.org/rfc/rfc9110
Related terms
Knowledge Graph
CONCEPT
DATA ENGINEERING
A semantic network representing real-world entities, attributes, and relationships in a structured machine-readable format.
Creative Fatigue
CONCEPT
PERFORMANCE ADVERTISING
Why ad performance drops as audiences see the same creative repeatedly, which metrics reveal it, and how creative rotation and variety slow the decline.
Hypertext Transfer Protocol (HTTP)
CONCEPT
SYSTEMS ARCHITECTURE
The core networking protocol facilitating request-and-response data communications across the global World Wide Web.
Keyword Cannibalization
CONCEPT
SEARCH OPTIMIZATION
An SEO issue where several pages on one site serve the same search intent, blurring which URL should rank and splitting internal signals.