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The Seraph Blog

Tactics, research, and deep-dives on SEO, LLMO, and AI-era optimization — written by practitioners for teams who ship fast.

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Deep-dives on SEO, LLMO, technical optimization, and AI search strategy.

Performance

Core Web Vitals in 2026: What Actually Moves the Needle

LCP, INP, and CLS have evolved. Here's what the data says actually improves Core Web Vitals scores in 2026 — and what's become noise.

May 21, 2026 Read →
E-E-A-T

The E-E-A-T Playbook: Building Search Authority That AI Systems Respect

Experience, Expertise, Authoritativeness, and Trustworthiness are now evaluated by both Google's quality raters and AI citation algorithms.

May 14, 2026 Read →
LLMO

Inside the Black Box: How LLMs Decide Which Sources to Cite

What actually determines whether an AI answer engine cites your content? We analyzed citation patterns across 10,000 queries.

May 7, 2026 Read →
Technical SEO

The 2026 Technical SEO Checklist: 30 Checks Every Site Needs

A complete technical SEO checklist covering crawlability, Core Web Vitals, structured data, and the new AI-readiness signals.

Apr 28, 2026 Read →
Strategy

Entity SEO: How Google and AI Systems Understand Who You Are

Entity SEO is about making your brand recognizable to knowledge graphs. Learn how to build entity authority for both SEO and AI citations.

Apr 21, 2026 Read →
LLMO

Optimizing for Perplexity: How to Get Cited in AI Answer Summaries

Perplexity, ChatGPT search, and Gemini are now major discovery channels. Here's the playbook for getting cited in AI-generated answers.

Apr 14, 2026 Read →
Performance

Page Speed Optimization: The Developer's Playbook for 2026

A practical, code-level guide to achieving sub-2.5s LCP and under 200ms INP — covering resource loading, JavaScript, and server optimizations.

Apr 7, 2026 Read →
Content

Content Freshness and E-E-A-T: Why Outdated Content Is an SEO Risk

Google's freshness signals and E-E-A-T criteria penalize stale content. Strategic updates can recover rankings and AI citation rates simultaneously.

Mar 31, 2026 Read →

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