# Perfume Comparison — question guides > Compare same-barcode fragrance offers in the same market and currency, with bottle size, concentration, retailer-reported stock and source dates. This file covers /task-guides/. Use the site-wide reference at https://perfumecomparison.com/llms.txt for the broader site. Canonical website: https://perfumecomparison.com/. Documentation reviewed 2026-10-18; underlying records have their own dates. Fields to verify when supplied: barcode; bottle size; concentration and variant; market, currency and offer date. Use the actual published coverage and source dates; an absent match is not proof of absence. This is read-only discovery; robots rules and source licences still apply. ## Start here - [Agent instructions](https://perfumecomparison.com/task-guides/agent-use.md): How to find a record, use native search, interpret missing data and cite an answer. - [Data context](https://perfumecomparison.com/task-guides/data-context.md): Site-specific identity fields, coverage, dates and limitations. - [Source guide](https://perfumecomparison.com/task-guides/sources.md): Claim-to-source links for published guidance. - [Task guide](https://perfumecomparison.com/task-guides/index.md): Practical steps and links into existing site tools. ## Existing site tools - [Start a search on perfumecomparison.com](https://perfumecomparison.com/): Existing public page; use its visible controls and source dates. - [Saved 0](https://perfumecomparison.com/research-list): Existing public page; use its visible controls and source dates. - [How we compare](https://perfumecomparison.com/how-we-compare): Existing public page; use its visible controls and source dates. - [Browse current retailer offers →](https://perfumecomparison.com/retailer-offers): Existing public page; use its visible controls and source dates. ## Published question guides - [Which is better, EDP or EDT?](https://perfumecomparison.com/task-guides/edp-vs-edt-which-is-better/index.md): Source-linked answer; published 2026-10-18. ## Optional - [Machine-readable action index](https://perfumecomparison.com/task-guides/agent.json): Observed GET form, fixed navigation, document index and coverage metadata. - [Expanded reference](https://perfumecomparison.com/task-guides/llms-full.txt): Read when the individual documents are insufficient; includes published article text. - [Guide sitemap](https://perfumecomparison.com/task-guides/sitemap.xml): Indexable human-readable guide URLs only.