Page Redirect Loop Detection Using Single-Page Access Timing

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Solution Overview

Problem

Existing methods for detecting page redirect loops require complete information of the redirect chain, consuming significant resources and are ineffective in cross-site scenarios due to information acquisition limitations.

Innovation Solution

Detecting a page redirect loop by monitoring a single node page and analyzing the sequence of access times, using methods like Fourier analysis to determine periodicity, reducing resource consumption and enabling detection across multiple sites without full chain information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If complete information of the redirect chain is acquired to detect loops, then detection accuracy is improved, but system resource consumption increases significantly

Engineering Contradiction:
Improvedetection accuracyVSAvoidsystem resource consumption
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The patent extracts only the necessary monitoring information (access times of a single node page) from the complete redirect chain, rather than acquiring all chain information. This selective extraction maintains loop detection capability while significantly reducing resource consumption associated with collecting and processing entire redirect chains across multiple sites.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent segments the redirect chain monitoring task into independent node page monitoring units. Each node page is monitored separately for access times, and loops are detected by analyzing periodic patterns in these segmented data points. This segmentation allows parallel processing and reduces the computational burden compared to analyzing complete chains.

Inventive Principle:
Principle #1Segmentation

2Reliability

If complete redirect chain information is acquired, then loop detection reliability is improved, but applicability in cross-site scenarios deteriorates due to information acquisition limitations

Engineering Contradiction:
Improveloop detection reliabilityVSAvoidcross-site scenario applicability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent creates a universal monitoring mechanism that functions across different sites and redirect chain configurations. By monitoring access times at any node page within the redirect chain and analyzing periodic patterns, the system achieves loop detection capability that is adaptable to cross-site scenarios, trusted login flows, and various redirect chain structures without requiring site-specific implementations or complete chain information.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Device complexity

If a single node page is monitored instead of the entire redirect chain, then implementation complexity is reduced, but detection capability may be compromised

Engineering Contradiction:
Improveimplementation complexityVSAvoiddetection capability
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The patent employs feedback mechanisms by continuously monitoring access times at the node page and analyzing the periodicity patterns of these accesses. The system uses Fourier analysis or other periodicity detection methods on the accumulated access time data to identify loops. This feedback-based approach maintains high detection capability while working with simplified single-page monitoring data, as the periodic patterns in access times provide sufficient information to detect loops without needing complete chain information.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP3531279B1Method and apparatus for detecting page redirect loop
Publication Date: 2025.10.22 ADVANCED NOVA TECH (SINGAPORE) HLDG PTE LTD
  • EP3531279B1 patent drawingFigure 1
  • EP3531279B1 patent drawingFigure 2
  • EP3531279B1 patent drawingFigure 3

AI summary

A method and an apparatus for detecting a page redirect loop. The method comprises: for a monitored target page, acquiring a sequence of access times at which the target page is accessed (101), the target page being a node page in a page redirect chain; and when it is analyzed that the sequence of access times is periodic, determining that a page redirect loop occurs in the page redirect chain where the target page is included (102). The method is relatively easy to implement and reduces system resource consumption. In addition, even in a cross-site page redirect scenario, since a redirect loop can be determined by monitoring a single page without acquiring information about other sites, the method can be more widely applied.