Does Claude use the same sources as ChatGPT and Perplexity?

No. Claude retrieves via Brave Search; ChatGPT's web mode uses Bing; Perplexity uses its own crawler plus multiple indexes. There is meaningful overlap at the top of the web, but the mid-tier citation set diverges significantly. A brand cited frequently by Perplexity is not guaranteed to appear in Claude, and vice versa.

Does Claude cite pages that are blocked by robots.txt?

For live web-retrieval queries, Claude respects robots.txt directives and will not retrieve blocked pages. For answers drawn from training data (offline knowledge), the original crawl may have occurred before any blocking rules were in place. Keep publicly accessible any page you want cited in real-time retrieval mode.

How long does it take to see citation gains after optimizing a page?

For Claude's live web-retrieval mode, changes can show up in citations within days of being re-crawled by Brave. For shifts in Claude's base model knowledge (offline answers), those reflect training data and update on Anthropic's training schedule, which is not publicly disclosed. Focus optimization effort on web-retrieval mode, where your changes have direct and measurable short-term impact.

Is FAQPage schema still worth implementing in 2026?

Yes, for AI extraction. Google removed FAQ rich results from search on May 7, 2026, so FAQPage schema no longer produces SERP widgets. However, it materially improves how Claude and other AI engines extract and attribute Q&A content. Implement it for AI citation value, not for SERP decoration.

Does having more backlinks increase Claude citation probability?

Indirectly. Backlinks influence Brave Search rankings, and Claude's retrieval is gated on Brave top results. So link authority matters as a prerequisite. But among pages that pass the Brave retrieval gate, citation selection is driven by content quality, structure, and credibility signals, not raw backlink count.

What is the biggest mistake brands make when trying to optimize for Claude?

Optimizing only their own site while ignoring third-party mentions. Claude's citation confidence for a brand is partly a function of how consistently and accurately that brand is described across multiple independent sources. If your Wikipedia entry is outdated, your Reddit presence is thin, and industry roundups omit you, Claude will under-cite you relative to competitors even if your own content is perfectly structured.

Should I use HowTo schema even though it no longer generates rich results?

Yes, where the content is genuinely procedural. HowTo schema helps Claude extract step sequences accurately and present them in its answers. The value is in AI extraction, not in SERP visibility. The same logic applies to FAQPage: implement both for AI readability, and stop evaluating them by SERP feature metrics.

Does Promptive track Claude citations separately from ChatGPT and Perplexity?

Yes. Promptive runs prompt sets across each major AI engine independently and surfaces per-engine citation rate, share of voice, and sentiment. You can isolate Claude-specific performance and compare it against your ChatGPT or Perplexity presence to identify where the gap is largest and which fixes will move the needle fastest.

How to Optimize for Claude's Citation Behavior in 2026