Connect your website’s RSS or Atom feed once and every new article, product or episode posts itself to your Tumblr blog — as a native link post with a title, a description and a working link, and nothing to remember after you publish.
Tumblr is often left out of automation conversations, which is odd, because structurally it is one of the better destinations available.
Most networks give you one post format — a block of text — and expect you to work a link into it. Tumblr has post types: text, photo, link, quote and chat. The link post is made of a URL, a title and a description, which is precisely what an RSS item already contains. There is no adaptation, no truncation strategy and no compromise; an automated post is simply a normal Tumblr post.
The second reason is how Tumblr surfaces content. There is no ranking system deciding which of your posts deserve an audience. Posts reach people through tags and through reblogs, both of which reward relevance rather than posting frequency or engagement bait. A well-tagged post from a small blog can travel a long way.
The third is the archive. A Tumblr blog is a permanent, browsable, chronological record with its own URL and, if you want, your own domain. An automated feed does not just announce your work — it builds a second home for it, indexed and linkable, without any additional effort.
Three things are needed: a blog to post to, permission to post, and a feed to read. In PostRSS the blog is a Target and each automated post counts as one Task against your plan’s monthly allowance.
Tumblr uses OAuth, so connecting is an authorisation step rather than a password handover. You approve access, and PostRSS receives a token that lets it create posts on the blog you nominate. No password is ever shared, and you can revoke the connection from your Tumblr account settings at any time — which stops publishing immediately.
Tumblr’s access model sits between the two extremes covered elsewhere in these guides. It is not Meta-style business verification with a review queue, and it is not quite as instant as Bluesky’s app passwords. It is a straightforward self-service authorisation, and it takes about a minute.
This step is specific to Tumblr and worth pausing on. A single Tumblr account can own many blogs: a primary blog tied to your account, plus any number of secondary blogs, each with its own name, URL, theme and audience.
PostRSS treats each blog as its own Target. That means a company can run a main blog fed by its whole site and a specialist blog fed by one category, from the same account and the same source feed, without publishing twice.
Paste the address of your RSS or Atom feed. On WordPress this is usually your domain followed by /feed/, and every category and tag has its own — /category/design/feed/, for instance. Ghost, Substack, Blogger, Shopify, PrestaShop and OpenCart all expose feeds, as does every podcast host and every YouTube channel. If you are unsure, open the homepage source and look for application/rss+xml.
Publishing on your site is then the only action required. PostRSS notices the new item, builds the link post and publishes it. Your feed is checked every 5 minutes on every plan, and every 1 minute on Enterprise.
A link post renders as a card on your blog and in the dashboards of everyone who follows you: the title, a short description and the destination URL, with the image Tumblr pulls from the page.
As on every other network, that image comes from your site’s open-graph tags. If a post appears without one, the article is missing an og:image, or the image is too large, or a CDN rule is blocking the fetch. Fixing it at the source fixes Tumblr, Facebook, Bluesky and everything else at once.
The description is worth a thought. Tumblr shows it beneath the title, and it is usually drawn from your feed’s description or excerpt field. If your CMS emits a truncated first paragraph there, that is what appears; if it emits a hand-written excerpt, that appears instead. Publishers who care about how their Tumblr posts read tend to start writing proper excerpts, and every other network benefits from the same change.
If you take one thing from this page, take this. Tumblr has no algorithmic feed pushing your posts to strangers. Discovery happens because someone browses a tag, and your post is in it.
A post with no tags reaches your existing followers and nobody else. A post with three or four accurate tags reaches everyone browsing those tags, which on an active subject can be a considerably larger audience than your follower count.
Two practical rules follow. First, order matters: Tumblr surfaces the earliest tags on a post in tag search, so put the most specific and relevant ones first rather than leading with something generic. Second, accuracy beats volume. Tumblr’s culture is notably hostile to tag stuffing, and a post tagged with fifteen loosely related terms performs worse than one tagged with three precise ones — it also risks being filtered out of the tag pages you were aiming for.
For an automated feed, this means the tags in your CMS are doing real work. Many publishers already tag posts sensibly; if yours does not, this is the cheapest improvement available, and it pays off on your own site’s navigation too.
Tumblr’s amplification mechanism is the reblog, and it behaves unlike anything on the networks covered elsewhere in these guides.
When someone reblogs your post it appears on their blog, and when someone reblogs that, it continues — accumulating notes on the original as it travels. There is no expiry. A Tumblr post from three years ago can start circulating again because one person found it, which is why Tumblr traffic arrives in unpredictable spikes rather than the smooth decay curve every other network produces.
The consequence for automation is encouraging: the archive you build has a long tail. Every post you automate remains a live object that can be discovered and redistributed indefinitely, which is not true of a timeline post that is invisible after a day.
Tumblr has a native queue that releases posts gradually at a rate you choose. It is a genuinely useful feature and it interacts with automation in a way worth planning.
If you publish in bursts — six articles on a Tuesday morning — you have two ways to avoid dumping six posts at once. You can set a publishing window in PostRSS, which holds items and releases them inside the window. Or you can let Tumblr’s queue do the spacing on its side.
Use one or the other, not both. Two independent spacing mechanisms stacked on top of each other make the delay between publishing an article and seeing it on Tumblr unpredictable, and diagnosing that later is unpleasant. For most publishers, setting the window in PostRSS is simpler, because everything then behaves the same way across all your Targets.
Tumblr blogs tend to be narrower than the sites behind them. A studio might run a blog for visual work only; a shop might run one per product line; a publication might give each section its own.
PostRSS applies filters before anything is posted. You can restrict a Target by category or tag, require a keyword in the title, or exclude one. Several Targets can run from the same feed with different rules, which is exactly how one site feeds three blogs on one Tumblr account.
Because Tumblr audiences follow a blog for a subject rather than for a brand, filtering matters more here than on a general-purpose account. A blog that stays on topic accumulates followers; one that mixes everything does not.
Visual and design content is Tumblr’s strongest suit by a distance. If your articles carry good open-graph images, they will perform better here than the same articles do on text-led networks.
Long-form writing works well when the subject has a community. Tumblr’s remaining audiences are organised around interests, and a blog that matches one of them finds readers quickly.
Podcast episodes post cleanly — every podcast is already an RSS feed, and the episode artwork carries the card.
Product feeds need care, as everywhere. A blog that is nothing but products will not be reblogged, and reblogs are the entire distribution mechanism. Filter to launches and genuinely interesting items.
Changelogs and release notes are the weakest fit. Send those to Telegram, Discord or a webhook, where an audience specifically wants them.
Tumblr lets you point your own domain at a blog, which changes what the automation is actually building.
With a custom domain, the automated blog stops being a social profile and becomes a second indexed site carrying your titles, descriptions and links. It is not a replacement for your main site, and it should not carry full article text — you want readers on your own domain — but as a permanently browsable index of everything you publish, it costs nothing to maintain once the feed is connected.
If you go this route, make sure the posts link back to your canonical URLs, which is what PostRSS sends by default.
Check that the Tumblr connection is still authorised. Access can be revoked from your Tumblr account settings, and if that happened publishing stops even though the feed is still being read. Reconnect the account to resume. Also confirm the feed itself updated — a caching plugin serving a stale copy looks identical to a broken automation from the outside.
Check which blog the Target is pointed at. This is the most common configuration mistake on Tumblr specifically, because the primary blog is selected by default and secondary blogs have to be chosen deliberately.
That is a filter behaving as configured. Review the category, tag and keyword rules on the Target.
No schedule is set on the Target, and Tumblr’s own queue is not being used either. Pick one of the two and configure it.
Compare timestamps. Under five minutes is the feed-check interval working as designed. Hours usually means the feed is cached, or that Tumblr’s queue is spacing posts out — check the queue before assuming a fault.
Open the article and inspect its open-graph tags. Tumblr renders what the page declares.
Tumblr shows notes on each post — the combined count of likes and reblogs — which tells you whether something resonated. Reblogs matter far more than likes, because only reblogs carry a post to a new audience.
For traffic, add UTM parameters to your links so your analytics can separate Tumblr from everything else. Expect a different shape from other networks: fewer visits on the day you publish, and a long tail that can reactivate months later when an old post starts circulating again.
Judge the blog over a quarter rather than a week. A Tumblr blog compounds; the first month rarely shows what it will eventually do.
Each Tumblr blog you connect is one Target, and each automated post is one Task against your plan’s monthly allowance. Paid plans raise both numbers and add the other networks, and they are chosen on postrss.com rather than inside the mobile app.
Running three blogs from one account costs three Targets, and filtering each reduces the Tasks proportionally — which is usually what you want, since narrow blogs perform better here than broad ones.
Tumblr’s tag-driven discovery has more in common with Mastodon than with any timeline network — in both cases, tags rather than an algorithm decide who sees a post. If your content is visual, the same feed usually belongs on Pinterest too.
Tumblr is also a good fit for e-commerce product launches when filtered to notable items rather than a whole catalogue. And if the blog behind it runs on WordPress, the PostRSS plugin lets you send one category to Tumblr and a different one everywhere else.
No. Tumblr uses OAuth, so connecting is an authorisation step. You can revoke access from your Tumblr account settings at any time, which stops publishing immediately.
The link post type — a URL, a title and a description — which is what an RSS item already contains and what renders as a proper card on your blog.
Yes. Each blog on your account can be connected as its own Target, and different feeds or filters can be pointed at each one.
The tags your feed emits are what reach Tumblr, and on Tumblr tags are the main discovery mechanism. Put the most specific ones first, and keep them accurate rather than numerous.
No. PostRSS publishes items that appear in the feed after the Target starts running.
Either, but not both. Two spacing mechanisms stacked together make delivery times unpredictable and hard to diagnose.
Connect the account, choose the blog deliberately rather than accepting the default, point it at the narrowest feed that matches the blog’s subject, and check that your tags arrive in a sensible order. Then leave it alone for a quarter. Tumblr rewards consistency and accurate tagging more than it rewards volume — and an automated feed supplies the consistency without asking anything of you.
