How to Do SEO for a Blog

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Blog SEO is maintenance, not setup. The one-time work of installing a theme and writing posts is the easy part; the part that actually determines whether a blog grows or quietly decays is the recurring hygiene that years of publishing demand. Consistent publishing without that maintenance accumulates what is best called blog debt: thin taxonomy pages that dilute site quality, internal cannibalization where your own posts compete for the same query, and content decay as once-winning pages slide down the SERP. The recurring work is therefore taxonomy hygiene, consolidating self-competing posts, refreshing decaying winners, and structuring content into hubs. For a mature blog the highest-ROI shift is usually away from publishing more and toward updating what already ranks, because refreshing a page that already has impressions and links consolidates authority instead of splitting it.

Clean up the taxonomy first

WordPress and similar platforms generate index pages automatically, and most of them are thin pages that hurt more than they help. Tag pages are the worst offender: a blog with hundreds of tags, each attached to one to three posts, produces hundreds of near-empty archive pages that exist only to dilute site-wide quality. Noindex most or all tag pages. The exception is a tag that genuinely functions as a substantial topic hub with real content and many posts behind it, which is rare.

Categories are different. Keep a small set, on the order of eight to twelve substantial categories with twenty or more posts each, and give each one unique introductory content so the category page is a real landing page rather than a bare list of links. Date archives almost never serve searchers and should be noindexed or disabled. Author pages go one of two ways: either they are substantive, with a real bio, credentials, and a body of work that supports E-E-A-T, or they are thin and should be noindexed. The principle across all of it is that an index page earns indexation only if it is a destination a searcher would want, and most auto-generated ones are not.

Diagnose and fix cannibalization

Cannibalization is when two or more of your own pages compete for the same query, so Google splits signals between them and neither ranks as well as a single consolidated page would. Diagnose it in Search Console: take a query the blog should rank for, open the Performance report, filter to that query, and switch to the Pages tab. If multiple URLs show impressions for the same query, that query is being cannibalized.

There are two fixes and you choose by intent. If the pages genuinely target the same intent, consolidate: pick one owner URL, fold the best material from the others into it, 301-redirect the losers to the owner, and repoint internal links straight at the keeper rather than chaining them through the redirect. If the pages target distinct intents that merely overlap in phrasing, differentiate them instead, sharpening each page’s angle and internal linking so Google can tell them apart. Consolidation is the more common answer on an older blog, because the usual cause is having written three overlapping posts on the same topic across three years.

Monitor decay and weight toward updates

Content decay is the slow decline of a page that used to rank, as the SERP refreshes, competitors update, and your facts age. Catch it with a period-over-period comparison in Search Console: compare a recent window against the prior one and look for pages losing clicks and impressions. Then refresh by the size the decline warrants. A quick refresh updates dates, facts, and a few sections. A moderate update reworks structure and adds substantial new material. A major rewrite rebuilds a page that has fallen badly behind.

The strategic point is the allocation of effort. On a blog with a deep back catalog, refreshing a decaying page that already carries impressions and backlinks usually beats writing a fresh post that competes with your own existing coverage, because you are reinforcing one asset instead of fragmenting authority across two. A roughly even split between new posts and updates is a reasonable default for a mature blog, and “we keep publishing but traffic keeps falling” is almost always unaddressed decay and cannibalization rather than insufficient volume.

Structure content into hubs

Topical authority is built by structure, not just by individual posts. Organize coverage into pillar-and-cluster hubs: a comprehensive pillar page on a broad topic, surrounded by cluster posts that each go deep on a subtopic, with internal links connecting the cluster to the pillar and to each other. This does two things at once. It signals topical depth to Google, and it routes internal link equity and crawl paths through a coherent map rather than a flat pile of posts. Describe and build these internal links deliberately; the structure is what turns a collection of articles into an authority on a subject.

A few technical items round out blog maintenance. For paginated archives, do not reach for rel=”next” and rel=”prev” as a ranking or indexing aid: Google stopped using those attributes as an indexing signal years ago and confirmed it, so they no longer help for that purpose. Handle pagination instead by letting Google discover paginated URLs through normal crawlable links, or by using a “load more” pattern, and consider whether deep archive pages past the first need to be indexed at all. Related-posts modules should use real crawlable links so they pass equity and aid discovery. And comment sections need active hygiene: moderate spam, apply nofollow (or equivalent) to user-submitted links so you are not vouching for them, and keep filtering on, because a comment section overrun with spam links is a quality liability on the very pages you are trying to rank.

One note on FAQ markup, since blogs often bolt FAQ schema onto posts hoping for a rich result. That opportunity is gone: Google removed FAQ rich results from general Search, and as of 2026 even the narrow remaining eligibility for government and health sites was retired. FAQPage markup is still a valid Schema.org type and Google still parses it, but it produces no visible SERP feature now, so do not add it expecting a rich result. Write the FAQ for readers if it genuinely helps the page, not for a snippet that no longer exists.

Frequently Asked Questions

Should I keep publishing new posts or update old ones?

On a mature blog, weight toward updating. Refreshing a decaying page that already has impressions and backlinks consolidates authority, while a new post on a topic you already cover tends to split signals and cannibalize your own ranking. A roughly even new-versus-update split is a sensible default; declining traffic despite steady publishing is usually decay and cannibalization, not too few posts.

Should I noindex tag pages?

Usually yes. Most tag pages are thin archives attached to a handful of posts and they dilute site-wide quality, so noindex them. Keep and index a small set of substantial categories, eight to twelve with real introductory content and many posts each, and noindex or disable date archives and thin author pages.

Does FAQ schema still get a rich result for blog posts?

No. Google removed FAQ rich results from general Search, and the last narrow exceptions for government and health sites ended in 2026. FAQPage markup remains valid and is still parsed, but it yields no visible SERP feature for an ordinary blog, so do not add it for that reason.

Sources

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