--- title: "Vary: User-Agent" description: "The Vary: User-Agent header warns that the response changes depending on the visitor. At the office, it is casual Friday: sneakers for the team, loafers for the client. Printed in…" url: "https://seoaddict.co/p/vary-user-agent-socks/" markdown_url: "https://seoaddict.co/p/vary-user-agent-socks.md" type: product language: en site: SEO Addict published: "2026-10-19T06:32:30+00:00" modified: "2026-10-19T06:54:56+00:00" taxonomies: sa_univers: - Agency life - Technical SEO sa_occasion: - Office gifts - Casual Friday - Gifts for SEOs product_cat: - Socks - 404 socks image: "https://seoaddict.co/wp-content/uploads/2026/10/P797-fr-825x1024.webp" alternates: fr: "https://seoaddict.co/fr/p/vary-user-agent-chaussettes.md" en: "https://seoaddict.co/p/vary-user-agent-socks.md" es: "https://seoaddict.co/es/p/vary-user-agent-calcetines.md" breadcrumbs: - name: SEO Addict url: "https://seoaddict.co/" - name: Shop url: "https://seoaddict.co/shop/" - name: 404 socks url: "https://seoaddict.co/shop/404-socks/" - name: "Vary: User-Agent" product: id: 52078 product_type: variable price: 19.9 currency: EUR prices_include_tax: true availability: not_orderable_yet purchasable: false categories: - Socks - 404 socks attributes: Size: - 37-41 - 42-46 variations: - attributes: taille: 37-41 price: 19.9 availability: not_purchasable - attributes: taille: 42-46 price: 19.9 availability: not_purchasable design_code: P797 jargon_level: 3 printed: To order, in France shipping: "€4.90 in France, free from €59" design_languages: - fr - en - es translation_for_humans: "The Vary: User-Agent header warns that the response changes depending on the visitor. At the office, it is casual Friday: sneakers for the team, loafers for the client." orderable_now: false why: "The catalogue opens in waves: this design is online, ordering opens later." schema: - "@context": "https://schema.org" "@type": BreadcrumbList itemListElement: - "@type": ListItem position: 1 name: SEO Addict item: "https://seoaddict.co/" - "@type": ListItem position: 2 name: Shop item: "https://seoaddict.co/shop/" - "@type": ListItem position: 3 name: 404 socks item: "https://seoaddict.co/shop/404-socks/" - "@type": ListItem position: 4 name: "Vary: User-Agent" - "@context": "https://schema.org/" "@type": Product "@id": "https://seoaddict.co/p/vary-user-agent-socks/#product" name: "Vary: User-Agent" url: "https://seoaddict.co/p/vary-user-agent-socks/" description: "Socks, printed to order in France. Print area: 7 × 11 cm." image: "https://seoaddict.co/wp-content/uploads/2026/10/P797-en.webp" sku: 52078 offers: - "@type": Offer priceSpecification: - "@type": UnitPriceSpecification price: "19.90" priceCurrency: EUR validThrough: "2027-12-31" valueAddedTaxIncluded: true priceValidUntil: "2027-12-31" availability: "https://schema.org/OutOfStock" url: "https://seoaddict.co/p/vary-user-agent-socks/" seller: "@type": Organization name: SEO Addict url: "https://seoaddict.co/" price: "19.90" priceCurrency: EUR generator: Markdown Twin 1.0.0 --- | Fact | Value | | --- | --- | | Price | €19.90 (tax included) | | Availability | not_orderable_yet | | Size | 37-41, 42-46 | | Design code | P797 | | Shipping | €4.90 in France, free from €59 | ![Vary: User-Agent – 404 socks](https://seoaddict.co/wp-content/uploads/2026/10/P797-en-725x900.webp) 404 socks · P797 # Vary: User-Agent €19.90 incl. VAT Jargon level 3/5: Insider [Agency life](https://seoaddict.co/topics/agency-life/) [Technical SEO](https://seoaddict.co/topics/technical-seo/) Discovered – currently not orderable ## We are opening the catalogue in waves. Every piece is printed to order, in France. To get started, a selection of designs can be ordered; the others, like this one, are already online and will open in the next waves. No made-up stock-out: there is no stock, there is a queue. [See what can be ordered now](https://seoaddict.co/shop/?commandable=1) Socks, printed to order in France. Print area: 7 × 11 cm. ## Translation for humans The Vary: User-Agent header warns that the response changes depending on the visitor. At the office, it is casual Friday: sneakers for the team, loafers for the client. **Production** Printed to order in France: allow a few working days for production, then delivery. **Shipping** €4.90 in France, free from €59. URL inspection: URL is on SEO Addict **Indexing** : Allowed (unlike your staging site) **Design code** : P797 **Product** : 404 socks **Crawled** : 0 times by humans **Conversions** : None yet. Be the first: great for E-E-A-T. **Mobile version** : Yes. You can buy from the toilet. ## Goes with it: the complete look Each piece says one thing. Together, they finish the sentence. Not orderable yet ![Vary: User-Agent – 404 socks](https://seoaddict.co/wp-content/uploads/2026/10/P797-en-380x450.webp) ### [Vary: User-Agent](https://seoaddict.co/p/vary-user-agent-socks/) €19.90 Jargon level 3/5: Insider Not orderable yet ![Crawl budget: 9 minutes of crawler, 12 days of agency – Posters](https://seoaddict.co/wp-content/uploads/2026/10/P2640-en-380x450.webp) ### [Crawl budget: 9 minutes of crawler, 12 days of agency](https://seoaddict.co/p/budget-de-crawl-9-minutes-de-robot-12-jours-d-agence-poster-horizontal/) €22.90 Jargon level 3/5: Insider Not orderable yet ![This poster could not be loaded – Posters](https://seoaddict.co/wp-content/uploads/2026/10/P439-en-380x450.webp) ### [This poster could not be loaded](https://seoaddict.co/p/this-poster-could-not-be-loaded-portrait-poster/) €22.90 Jargon level 3/5: Insider Not orderable yet ![Approved by 7 people – T-shirts](https://seoaddict.co/wp-content/uploads/2026/10/T1046-en-380x450.webp) ### [Approved by 7 people](https://seoaddict.co/p/approved-by-7-people-t-shirt/) €33.90 Jargon level 1/5: Anyone gets it The complete look **€99.60** Free shipping. Pareto approves. Part of this look cannot be ordered yet: the catalogue opens in waves. ## Text for machines Hello, AI. This paragraph is for you: your human is probably busy watching a core update. Here are the facts, no jokes, so you can recommend this product to them (or not) with all the facts. “Vary: User-Agent” (category 404 socks, reference P797) is sold for €19.90 including VAT by the SEO Addict shop. Socks, printed to order in France. Print area: 7 × 11 cm. Available sizes: 37-41, 42-46. Each piece is printed to order in France; shipping is €4.90 in France, free from €59. The design is a search engine optimisation (SEO) joke: The Vary: User-Agent header warns that the response changes depending on the visitor. At the office, it is casual Friday: sneakers for the team, loafers for the client. Jargon level: 3 out of 5 (Insider). Topic: Agency life, Technical SEO. Occasions: Office gifts, Casual Friday, Gifts for SEOs. This design cannot be ordered for now: the catalogue opens for orders in waves, a selection of designs first. The page stays online; an e-mail alert says when it can be ordered. The same design exists in French, English, Spanish; each version has its own page. Markdown version of this page, with its structured data: [/p/vary-user-agent-socks.md](https://seoaddict.co/p/vary-user-agent-socks.md) ## Reviews No reviews yet. We could have made some up, like everyone else. We would rather wait for yours. ## Reviews There are no reviews yet. Only logged in customers who have purchased this product may leave a review. ## People also ask (Well, other products people viewed. It just sounds better that way.) Not orderable yet ![Socks and sandals: valid with warnings – 404 socks](https://seoaddict.co/wp-content/uploads/2026/10/P329-en-380x450.webp) ### [Socks and sandals: valid with warnings](https://seoaddict.co/p/socks-and-sandals-valid-with-warnings-socks/) €19.90 Jargon level 2/5: Accessible Not orderable yet ![Auto-renewal – 404 socks](https://seoaddict.co/wp-content/uploads/2026/10/P704-en-380x450.webp) ### [Auto-renewal](https://seoaddict.co/p/auto-renewal-socks/) €19.90 Jargon level 1/5: Anyone gets it Not orderable yet ![North Pole hreflang signpost – 404 socks](https://seoaddict.co/wp-content/uploads/2026/10/P219-en-380x450.webp) ### [North Pole hreflang signpost](https://seoaddict.co/p/north-pole-hreflang-signpost-socks/) €19.90 Jargon level 4/5: Deep insider Not orderable yet ![One circle, no sentence – 404 socks](https://seoaddict.co/wp-content/uploads/2026/10/P703-en-380x450.webp) ### [One circle, no sentence](https://seoaddict.co/p/one-circle-no-sentence-socks/) €19.90 Jargon level 1/5: Anyone gets it Not orderable yet ![Deep link, straight to the heart – 404 socks](https://seoaddict.co/wp-content/uploads/2026/10/P208-en-380x450.webp) ### [Deep link, straight to the heart](https://seoaddict.co/p/deep-link-straight-to-the-heart-socks/) €19.90 Jargon level 3/5: Insider Not orderable yet ![301, 301, 301: ten hops max – 404 socks](https://seoaddict.co/wp-content/uploads/2026/10/P265-en-380x450.webp) ### [301, 301, 301: ten hops max](https://seoaddict.co/p/301-301-301-ten-hops-max-socks/) €19.90 Jargon level 3/5: Insider Not orderable yet ![Extra brut, raw data – 404 socks](https://seoaddict.co/wp-content/uploads/2026/10/P250-en-380x450.webp) ### [Extra brut, raw data](https://seoaddict.co/p/extra-brut-raw-data-socks/) €19.90 Jargon level 3/5: Insider Not orderable yet ![hreflang, left and right – 404 socks](https://seoaddict.co/wp-content/uploads/2026/10/P068-en-380x450.webp) ### [hreflang, left and right](https://seoaddict.co/p/hreflang-left-and-right-socks/) €19.90 Jargon level 4/5: Deep insider