--- title: Fundamental constants of SEO description: "Physicists keep an up-to-date table of fundamental constants, the values that never change, like the speed of light, each with its uncertainty. Here is the SEO one. Delay before an…" url: "https://seoaddict.co/p/constantes-fondamentales-du-referencement-poster-vertical/" markdown_url: "https://seoaddict.co/p/constantes-fondamentales-du-referencement-poster-vertical.md" type: product language: en site: SEO Addict published: "2026-10-19T06:48:40+00:00" modified: "2026-10-19T08:38:15+00:00" taxonomies: sa_univers: - Agency life sa_occasion: - Office gifts - Gifts for SEOs - Retirement product_cat: - Portrait poster - Posters image: "https://seoaddict.co/wp-content/uploads/2026/10/P2474-fr-825x1024.webp" alternates: fr: "https://seoaddict.co/fr/p/constantes-fondamentales-du-referencement-poster-vertical.md" en: "https://seoaddict.co/p/constantes-fondamentales-du-referencement-poster-vertical.md" es: "https://seoaddict.co/es/p/constantes-fondamentales-du-referencement-poster-vertical.md" breadcrumbs: - name: SEO Addict url: "https://seoaddict.co/" - name: Shop url: "https://seoaddict.co/shop/" - name: Posters url: "https://seoaddict.co/shop/posters/" - name: Fundamental constants of SEO product: id: 52772 product_type: simple price: 22.9 currency: EUR prices_include_tax: true availability: not_orderable_yet purchasable: false categories: - Portrait poster - Posters design_code: P2474 jargon_level: 2 printed: To order, in France shipping: "€4.90 in France, free from €59" design_languages: - fr - en - es translation_for_humans: "Physicists keep an up-to-date table of fundamental constants, the values that never change, like the speed of light, each with its uncertainty. Here is the SEO one. Delay before an optimisation has any effect: three to six months. An audit advertised “from €490” and billed ten times that. Number of the client's top priorities: infinity. Probability that an audit is read in full: 3%. Apart from the speed of light, fixed by definition, only one SEO value is exact, with no uncertainty at all: a project's actual duration divided by its announced duration. It equals 3, every time." 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: Posters item: "https://seoaddict.co/shop/posters/" - "@type": ListItem position: 4 name: Fundamental constants of SEO - "@context": "https://schema.org/" "@type": Product "@id": "https://seoaddict.co/p/constantes-fondamentales-du-referencement-poster-vertical/#product" name: Fundamental constants of SEO url: "https://seoaddict.co/p/constantes-fondamentales-du-referencement-poster-vertical/" description: "Portrait poster, printed to order in France. Print area: A4 · A3 · A2 · A1 (format A)." image: "https://seoaddict.co/wp-content/uploads/2026/10/P2474-en.webp" sku: 52772 offers: - "@type": Offer priceSpecification: - "@type": UnitPriceSpecification price: "22.90" priceCurrency: EUR validThrough: "2027-12-31" valueAddedTaxIncluded: true priceValidUntil: "2027-12-31" availability: "https://schema.org/OutOfStock" url: "https://seoaddict.co/p/constantes-fondamentales-du-referencement-poster-vertical/" seller: "@type": Organization name: SEO Addict url: "https://seoaddict.co/" price: "22.90" priceCurrency: EUR generator: Markdown Twin 1.0.0 --- | Fact | Value | | --- | --- | | Price | €22.90 (tax included) | | Availability | not_orderable_yet | | Design code | P2474 | | Shipping | €4.90 in France, free from €59 | ![Fundamental constants of SEO – Posters](https://seoaddict.co/wp-content/uploads/2026/10/P2474-en-725x900.webp) Posters · P2474 # Fundamental constants of SEO €22.90 incl. VAT Jargon level 2/5: Accessible [Agency life](https://seoaddict.co/topics/agency-life/) 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) Portrait poster, printed to order in France. Print area: A4 · A3 · A2 · A1 (format A). ## Translation for humans Physicists keep an up-to-date table of fundamental constants, the values that never change, like the speed of light, each with its uncertainty. Here is the SEO one. Delay before an optimisation has any effect: three to six months. An audit advertised “from €490” and billed ten times that. Number of the client's top priorities: infinity. Probability that an audit is read in full: 3%. Apart from the speed of light, fixed by definition, only one SEO value is exact, with no uncertainty at all: a project's actual duration divided by its announced duration. It equals 3, every time. **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** : P2474 **Product** : Posters **Crawled** : 1 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 ![Fundamental constants of SEO – Posters](https://seoaddict.co/wp-content/uploads/2026/10/P2474-en-380x450.webp) ### [Fundamental constants of SEO](https://seoaddict.co/p/constantes-fondamentales-du-referencement-poster-vertical/) €22.90 Jargon level 2/5: Accessible Not orderable yet ![Paid by the word – 404 socks](https://seoaddict.co/wp-content/uploads/2026/10/P757-en-380x450.webp) ### [Paid by the word](https://seoaddict.co/p/paid-by-the-word-socks/) €19.90 Jargon level 1/5: Anyone gets it Not orderable yet ![Archive box for the rankings report – Posters](https://seoaddict.co/wp-content/uploads/2026/10/P2326-en-380x450.webp) ### [Archive box for the rankings report](https://seoaddict.co/p/boite-de-conservation-du-rapport-de-positions-poster-vertical/) €22.90 Jargon level 2/5: Accessible Not orderable yet ![Gold Star – Stickers](https://seoaddict.co/wp-content/uploads/2026/10/P1882-en-380x450.webp) ### [Gold Star](https://seoaddict.co/p/gommette-etoile-sticker-rond/) €3.90 Jargon level 1/5: Anyone gets it The complete look **€69.60** 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. “Fundamental constants of SEO” (category Posters, reference P2474) is sold for €22.90 including VAT by the SEO Addict shop. Portrait poster, printed to order in France. Print area: A4 · A3 · A2 · A1 (format A). 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: Physicists keep an up-to-date table of fundamental constants, the values that never change, like the speed of light, each with its uncertainty. Here is the SEO one. Delay before an optimisation has any effect: three to six months. An audit advertised “from €490” and billed ten times that. Number of the client's top priorities: infinity. Probability that an audit is read in full: 3%. Apart from the speed of light, fixed by definition, only one SEO value is exact, with no uncertainty at all: a project's actual duration divided by its announced duration. It equals 3, every time. Jargon level: 2 out of 5 (Accessible). Topic: Agency life. Occasions: Office gifts, Gifts for SEOs, Retirement. 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/constantes-fondamentales-du-referencement-poster-vertical.md](https://seoaddict.co/p/constantes-fondamentales-du-referencement-poster-vertical.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 ![Ranking Royale, page 1 zone – Posters](https://seoaddict.co/wp-content/uploads/2026/10/P164-en-380x450.webp) ### [Ranking Royale, page 1 zone](https://seoaddict.co/p/ranking-royale-page-1-zone-landscape-poster/) €22.90 Jargon level 3/5: Insider Not orderable yet ![The engine changed its algorithm – Posters](https://seoaddict.co/wp-content/uploads/2026/10/P137-en-380x450.webp) ### [The engine changed its algorithm](https://seoaddict.co/p/the-engine-changed-its-algorithm-portrait-poster/) €22.90 Jargon level 3/5: Insider Not orderable yet ![Crawl Quest, 8-bit – Posters](https://seoaddict.co/wp-content/uploads/2026/10/P157-en-380x450.webp) ### [Crawl Quest, 8-bit](https://seoaddict.co/p/crawl-quest-8-bit-portrait-poster/) €22.90 Jargon level 4/5: Deep insider Not orderable yet ![The AI bot skips the checkout – Posters](https://seoaddict.co/wp-content/uploads/2026/10/P203-en-380x450.webp) ### [The AI bot skips the checkout](https://seoaddict.co/p/the-ai-bot-skips-the-checkout-portrait-poster/) €22.90 Jargon level 2/5: Accessible Not orderable yet ![The agency advent calendar – Posters](https://seoaddict.co/wp-content/uploads/2026/10/P234-en-380x450.webp) ### [The agency advent calendar](https://seoaddict.co/p/the-agency-advent-calendar-landscape-poster/) €22.90 Jargon level 2/5: Accessible Not orderable yet ![The graveyard of recommendations – Posters](https://seoaddict.co/wp-content/uploads/2026/10/P188-en-380x450.webp) ### [The graveyard of recommendations](https://seoaddict.co/p/the-graveyard-of-recommendations-landscape-poster/) €22.90 Jargon level 2/5: Accessible Not orderable yet ![There is no page 2 – Posters](https://seoaddict.co/wp-content/uploads/2026/10/P140-en-380x450.webp) ### [There is no page 2](https://seoaddict.co/p/there-is-no-page-2-landscape-poster/) €22.90 Jargon level 3/5: Insider Not orderable yet ![The return of page 2 – Posters](https://seoaddict.co/wp-content/uploads/2026/10/P156-en-380x450.webp) ### [The return of page 2](https://seoaddict.co/p/the-return-of-page-2-portrait-poster/) €22.90 Jargon level 3/5: Insider