Mailjet SEO audit
Mailjet is a transactional email API and marketing campaigns platform — acquired by Sinch in 2021 — providing SMTP relay, a developer API, and a drag-and-drop campaign editor for marketing teams who want to manage both developer-triggered transactional emails and marketer-designed broadcast campaigns in a single platform. Mailjet is widely used across Europe and is available in multiple languages with EU data residency options. DeepSEOAnalysis audits the destination pages that Mailjet campaigns link to — confirming structured data server-rendering, CrUX p75 performance, and canonical configuration for pages with Mailjet campaign UTM parameters.
Audit your Mailjet landing page free →What we check on Mailjet-linked pages
Mailjet platform positioning
- Mailjet (Sinch): hybrid transactional email API + marketing campaigns platform
- SMTP relay and email API for developers; drag-and-drop campaign editor for marketers
- Used by SMBs and mid-market businesses across Europe, North America, and APAC
- No landing page builder — primary website handles SEO surfaces
Click tracking and canonical
- Mailjet Marketing Campaigns wraps links in click-tracking redirect URLs
- UTM parameters in campaign links: ?utm_source=mailjet&utm_medium=email
- Destination page canonical must self-reference the clean (UTM-free) URL
- Parameter URL variants shared by email recipients can be crawled by Googlebot
Transactional email pages
- Order confirmation and receipt pages: transactional only — consider noindex
- Shipping notification landing pages: track delivery status — not indexable content
- Account verification pages: should be authentication-gated and not indexable
- Marketing email landing pages: indexable with correct canonical and structured data
Core Web Vitals (CrUX field data)
- LCP: promotional landing pages receiving Mailjet campaign traffic
- CLS: promotional banners or countdown timers injected after initial page load
- INP: CTA buttons and form interaction on campaign destination pages
- p75 CrUX — real Chrome user data from email-generated page visits
Structured data on destination pages
- Product pages: Product + Offer + AggregateRating — must be server-rendered
- Article/blog pages: Article schema with author, datePublished, dateModified
- Event pages: Event schema with startDate, endDate, location, organizer
- Mailjet does not generate or modify structured data on destination pages
AI visibility assessment
- Primary website pages: AI crawler access in robots.txt
- Blog content linked from Mailjet newsletters: question-heading ratio and chunkability
- llms.txt on the primary domain — controls AI access to all email-linked content
- FAQPage schema on product and content pages: AI Overview citation eligibility
Mailjet SEO: email infrastructure connecting campaigns to website pages — audit the pages email recipients land on
Mailjet occupies a mid-market position between pure transactional email APIs (Postmark, SparkPost) and full marketing automation platforms (Klaviyo, ActiveCampaign). Its hybrid model allows developers to send transactional emails via API or SMTP while marketing teams manage broadcast campaigns and automations in the same account — reducing the fragmentation of having separate transactional and marketing email platforms. The Sinch acquisition has added SMS and WhatsApp messaging capabilities, moving Mailjet toward a multi-channel communication platform model.
For SEO, Mailjet's role is as an email delivery layer — not a content or SEO platform. All SEO value sits on the primary website: the product pages, promotional landing pages, blog content, and newsletter archives that Mailjet campaigns link to. These destination pages should be optimised for both email conversion (compelling offers, clear CTAs, fast load times for email-generated traffic) and organic search (correct canonical configuration, server-rendered structured data, good CrUX p75 performance). A product page that performs well in email campaigns — high click-to-purchase conversion — is the same page that benefits from Product rich results in organic search when its structured data is correctly implemented. DeepSEOAnalysis bridges both optimisation objectives in a single audit.
One Mailjet-specific canonical consideration: Mailjet's European user base often includes multilingual or multi-country businesses sending campaigns with locale-specific content. If Mailjet campaigns link to different language or country variants of the same page (e.g. /fr/produit vs /en/product), hreflang configuration on the destination pages must correctly specify the relationship between language variants. Incorrect hreflang on pages receiving multi-language Mailjet campaign traffic can cause language targeting issues in international search results. DeepSEOAnalysis validates canonical tags on audited pages — hreflang validation can be confirmed alongside the main technical audit.
Frequently asked questions
- Can Mailjet landing pages rank in Google Search?
- Mailjet does not include a landing page builder. It is a transactional email API and marketing email platform (now part of Sinch) focused on email delivery infrastructure and campaign management. Marketing emails send recipients to the primary website rather than to Mailjet-hosted pages. The SEO surface for Mailjet users is entirely on their primary website — the product pages, blog content, and promotional landing pages that Mailjet email campaigns link to. DeepSEOAnalysis audits these destination pages for structured data quality, Core Web Vitals, and canonical configuration.
- How does Mailjet\'s click tracking affect SEO on landing pages?
- Mailjet\'s Marketing Campaigns feature tracks link clicks using redirect URLs (similar to SendGrid and other ESPs). When recipients click a tracked link, their browser visits a Mailjet tracking URL before being redirected to the destination page. The destination page\'s canonical tag determines what Google indexes — not the tracking redirect URL. The key canonical risk is UTM parameters: if Mailjet campaigns append UTM parameters to destination URLs (?utm_source=mailjet&utm_medium=email&utm_campaign=...), those parameter URL variants may be crawled by Googlebot from users who share the link, and without correct canonical configuration on the destination page, these variants may be indexed as separate pages. Set canonical tags on all campaign destination pages to point to the clean (UTM-free) URL.
- Does Mailjet generate structured data for emails or pages?
- Mailjet does not generate JSON-LD structured data. As an email delivery platform, Mailjet focuses on message routing, deliverability, and campaign analytics — not on the structured data of the websites that email recipients land on. The structured data on destination pages (Product schema, Article schema, Event schema) is entirely the responsibility of the primary website developer, independent of Mailjet. One specific structured data consideration for Mailjet transactional email: Gmail supports JSON-LD and Microdata markup within email bodies for interactive email features (Go-to actions, order status display, event RSVPs). Mailjet\'s transactional template editor can include such email body markup, but this is separate from the web page structured data that affects Google Search.
- How does DeepSEOAnalysis audit pages used with Mailjet?
- DeepSEOAnalysis audits any publicly accessible URL — the landing pages, product pages, blog content, and promotional offer pages that Mailjet email campaigns link to. The audit covers: real CrUX field data (LCP, CLS, INP at p75 from Chrome users), structured data validation with server-rendering detection (confirming Product, Article, or Event schema is in the initial HTML — not JavaScript-injected), canonical tag correctness (checking UTM parameter URL variants correctly defer to the clean canonical URL), robots.txt AI crawler access, llms.txt presence, and broken outbound links. The audit result identifies technical SEO gaps on pages receiving Mailjet-driven traffic that reduce their ranking performance alongside their email conversion performance.