--- title: Weak ETag description: "An ETag prefixed with W/ is weak: it says two versions are equivalent but not byte-for-byte identical. That is exactly a pair of socks. Printed in France, from €19.90" url: "https://seoaddict.co/p/weak-etag-socks/" markdown_url: "https://seoaddict.co/p/weak-etag-socks.md" type: product language: en site: SEO Addict published: "2026-10-19T06:29:34+00:00" modified: "2026-10-19T06:45:41+00:00" taxonomies: sa_univers: - CMS & dev - Technical SEO sa_occasion: - "Birthdays (40, 50…)" - Office gifts - Gifts for SEOs - Secret Santa under €20 product_cat: - Socks - 404 socks image: "https://seoaddict.co/wp-content/uploads/2026/10/P739-fr-825x1024.webp" alternates: fr: "https://seoaddict.co/fr/p/etag-faible-chaussettes.md" en: "https://seoaddict.co/p/weak-etag-socks.md" es: "https://seoaddict.co/es/p/etag-debil-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: Weak ETag product: id: 51728 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: P739 jargon_level: 3 printed: To order, in France shipping: "€4.90 in France, free from €59" design_languages: - fr - en - es translation_for_humans: "An ETag prefixed with W/ is weak: it says two versions are equivalent but not byte-for-byte identical. That is exactly a pair of socks." 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: Weak ETag - "@context": "https://schema.org/" "@type": Product "@id": "https://seoaddict.co/p/weak-etag-socks/#product" name: Weak ETag url: "https://seoaddict.co/p/weak-etag-socks/" description: "Socks, printed to order in France. Print area: 7 × 11 cm." image: "https://seoaddict.co/wp-content/uploads/2026/10/P739-en.webp" sku: 51728 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/weak-etag-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 | P739 | | Shipping | €4.90 in France, free from €59 | ![Weak ETag – 404 socks](https://seoaddict.co/wp-content/uploads/2026/10/P739-en-725x900.webp) 404 socks · P739 # Weak ETag €19.90 incl. VAT Jargon level 3/5: Insider [CMS & dev](https://seoaddict.co/topics/cms-dev/) [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 An ETag prefixed with W/ is weak: it says two versions are equivalent but not byte-for-byte identical. That is exactly a pair of socks. **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** : P739 **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 ![Weak ETag – 404 socks](https://seoaddict.co/wp-content/uploads/2026/10/P739-en-380x450.webp) ### [Weak ETag](https://seoaddict.co/p/weak-etag-socks/) €19.90 Jargon level 3/5: Insider Not orderable yet ![Paris studio: everything’s above the fold – T-shirts](https://seoaddict.co/wp-content/uploads/2026/10/T1520-en-380x450.webp) ### [Paris studio: everything’s above the fold](https://seoaddict.co/p/paris-studio-everything-s-above-the-fold-t-shirt/) €33.90 Jargon level 2/5: Accessible Not orderable yet ![Airplane mode – T-shirts](https://seoaddict.co/wp-content/uploads/2026/10/T575-en-380x450.webp) ### [Airplane mode](https://seoaddict.co/p/airplane-mode-t-shirt/) €33.90 Jargon level 4/5: Deep insider Not orderable yet ![Spelling lesson: hyphens in web addresses – Posters](https://seoaddict.co/wp-content/uploads/2026/10/P2382-en-380x450.webp) ### [Spelling lesson: hyphens in web addresses](https://seoaddict.co/p/lecon-d-orthographe-le-trait-d-union-des-adresses-poster-vertical/) €22.90 Jargon level 4/5: Deep insider The complete look **€110.60** 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. “Weak ETag” (category 404 socks, reference P739) 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: An ETag prefixed with W/ is weak: it says two versions are equivalent but not byte-for-byte identical. That is exactly a pair of socks. Jargon level: 3 out of 5 (Insider). Topic: CMS & dev, Technical SEO. Occasions: Birthdays (40, 50…), Office gifts, Gifts for SEOs, Secret Santa under €20. 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/weak-etag-socks.md](https://seoaddict.co/p/weak-etag-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 ![2 URLs for the price of 1 – 404 socks](https://seoaddict.co/wp-content/uploads/2026/10/P193-en-380x450.webp) ### [2 URLs for the price of 1](https://seoaddict.co/p/2-urls-for-the-price-of-1-socks/) €19.90 Jargon level 3/5: Insider 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 ![410, gone for good – 404 socks](https://seoaddict.co/wp-content/uploads/2026/10/P064-en-380x450.webp) ### [410, gone for good](https://seoaddict.co/p/410-gone-for-good-socks/) €19.90 Jargon level 3/5: Insider Not orderable yet ![The “just kidding” noindex of April 1 – 404 socks](https://seoaddict.co/wp-content/uploads/2026/10/P284-en-380x450.webp) ### [The “just kidding” noindex of April 1](https://seoaddict.co/p/the-just-kidding-noindex-of-april-1-socks/) €19.90 Jargon level 3/5: Insider Not orderable yet ![Size 43, position 43 – 404 socks](https://seoaddict.co/wp-content/uploads/2026/10/P364-en-380x450.webp) ### [Size 43, position 43](https://seoaddict.co/p/size-43-position-43-socks/) €19.90 Jargon level 1/5: Anyone gets it Not orderable yet ![Duplicate content – 404 socks](https://seoaddict.co/wp-content/uploads/2026/10/P067-en-380x450.webp) ### [Duplicate content](https://seoaddict.co/p/duplicate-content-socks/) €19.90 Jargon level 3/5: Insider Not orderable yet ![404, sock not found – 404 socks](https://seoaddict.co/wp-content/uploads/2026/10/P061-en-380x450.webp) ### [404, sock not found](https://seoaddict.co/p/404-sock-not-found-socks/) €19.90 Jargon level 4/5: Deep insider Not orderable yet ![Blog: last post in 2019 – 404 socks](https://seoaddict.co/wp-content/uploads/2026/10/P187-en-380x450.webp) ### [Blog: last post in 2019](https://seoaddict.co/p/blog-last-post-in-2019-socks/) €19.90 Jargon level 1/5: Anyone gets it