Is using the same subdomain for email and CloudPages bad for deliverability in Marketing Cloud?

Email marketer from HubSpot.com mentions that using subdomains will enable you to maintain brand consistency. It is easier to recognize and builds more trust between the customer and the business.

Marketer from Email Geeks believes that if using the same subdomain for both email and CloudPages was a problem, all SFMC users who use both would be having deliverability issues across the board.

Marketer from Email Geeks suggests that domain consistency is a symptom of good deliverability, not a direct cause. Good deliverability stems from sending wanted email to people who want it, leading to a history of few domains associated with the email messages.

Email marketer from Reddit explains that using a separate subdomain for marketing emails (including CloudPages-linked content) allows for better tracking and segmentation. They note that this prevents marketing campaigns from negatively impacting the deliverability of essential transactional emails sent from the main domain.

Email marketer from NeilPatel.com shares that using subdomains can help segment email traffic and protect your main domain's reputation. A negative impact on one subdomain is less likely to affect your entire sending infrastructure compared to using a single domain for everything.

Email marketer from ZeroBounce says that subdomains offer better organization and can help to protect your brand from deliverability issues caused by marketing campaigns. Having a dedicated subdomain allows the sending server to build a stronger sender reputation. A dedicated subdomain means the sending server can build a stronger sender reputation and not risk that reputation because of any negative effects on other email activity.

Email marketer from SendGrid.com shares that subdomains are useful for segmenting email streams (transactional vs. marketing) and isolating reputation. If CloudPages are treated as marketing content, separating them on a subdomain from transactional email could be a valid strategy, but not necessarily mandatory.

Email marketer from Emailonacid.com advises that if you are sending different types of emails, consider segmenting them using subdomains. So if you send marketing and transactional emails, using separate subdomains would isolate deliverability issues.

Email marketer from StackOverflow.com notes that consistency between sending domain, reply-to domain and link tracking domains (including CloudPages) is generally seen as a positive signal by mailbox providers. Inconsistencies can sometimes trigger spam filters, so maintaining a unified domain strategy, where appropriate, is important.

Email marketer from MailerLite shares the best thing about using a subdomain is to protect your main domain reputation. If your subdomain’s reputation is damaged, it won’t affect the deliverability of the emails sent from your main domain.

Email marketer from Litmus.com suggests that using a dedicated IP address and a subdomain helps build a consistent sending reputation, which is beneficial for deliverability. They recommend aligning your 'From' address domain, link tracking domain, and website domain.

Expert from Spam Resource indicates that using dedicated IP addresses and separate subdomains enables you to isolate email streams and protect your core domain. Therefore, using the same subdomain might increase the risk of deliverability issues if CloudPages content triggers spam filters.

Expert from Word to the Wise explains that separate subdomains can be useful to isolate reputation. If one subdomain has deliverability problems, it won't necessarily impact the deliverability of emails sent from other subdomains.

Expert from Email Geeks believes someone probably missed an important bit of context somewhere along the way about Cloudpages and domain use. Suggesting it might be a weird edge case where you don't want to use the same domain for Cloudpages versus the rest of the SAP and that the presenter was the one with the disconnect.

Expert from Email Geeks states that domain consistency is usually a good thing for email and link tracking, implying it benefits deliverability.

Documentation from Google states that it provides reputation data at the domain and subdomain level. This implies Google treats subdomains as separate entities, so deliverability problems on one subdomain may not impact another. Using subdomains for email and cloudpages may not be bad.

Documentation from Salesforce Help explains that SAP wraps all links and images with your branded domain, providing domain consistency which can improve deliverability. It doesn't explicitly forbid using the same subdomain, implying it's acceptable.

Documentation from SparkPost.com shares that delegating a subdomain to your email service provider (ESP) allows them to manage the DNS records and authentication protocols (SPF, DKIM, DMARC) necessary for good deliverability. This doesn't inherently discourage using the same subdomain, but highlights the importance of proper configuration.

Documentation from Mailjet.com explains that using a subdomain can help protect your main domain's reputation by isolating email sending activities. If one subdomain's reputation is damaged, it won't necessarily affect the deliverability of emails sent from other subdomains or the main domain.