{"id":8825,"date":"2026-08-11T03:12:22","date_gmt":"2026-08-11T03:12:22","guid":{"rendered":"https:\/\/dextora.agency\/insights\/case-studies-that-sell-portfolio-pages\/"},"modified":"2026-08-11T03:12:22","modified_gmt":"2026-08-11T03:12:22","slug":"case-studies-that-sell-portfolio-pages","status":"publish","type":"insight","link":"https:\/\/dextora.agency\/en\/insights\/case-studies-that-sell-portfolio-pages\/","title":{"rendered":"Case Studies That Sell: Writing a Portfolio Page Clients Finish Reading"},"content":{"rendered":"

Most portfolio pages are galleries. A grid of screenshots, a client name, occasionally a line about what was delivered. They exist because a services business is expected to have one, and they are read the way they are written: quickly, and without changing anyone’s mind.<\/p>\n

A case study that sells does something a gallery cannot. It lets a prospective client recognise their own situation in someone else’s, and it gives them the evidence to argue your case internally when you are not in the room. Those are two different jobs, and both are structural rather than stylistic.<\/p>\n

Who actually reads them, and when<\/h2>\n

Case studies are rarely the first thing a visitor sees and almost never the last. They are read in the middle of a decision, by two distinct people.<\/p>\n

The first is the person who found you and is checking whether you have solved their specific problem before. They arrive with a filter: same sector, same size, or same technical constraint. They will read one case study properly and skim the rest.<\/p>\n

The second is the person that first one has to convince. A director, a partner, a board. They never visit your site. They receive a link or a paragraph pasted into a message, and they judge it on whether it contains anything a sceptical colleague cannot dismiss. Writing for this second reader is what most case studies fail to do, and it is the reason numbers matter more than adjectives.<\/p>\n

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A simple test for a finished case study: could someone paste two sentences of it into an internal chat and have the reply be a question about scheduling rather than a question about whether you are credible? If not, the missing element is almost always a specific number or a named constraint.<\/p>\n<\/div>\n

The structure that works<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Section<\/th>\nWhat it contains<\/th>\nLength<\/th>\n<\/tr>\n<\/thead>\n
Situation<\/td>\nThe business context, and what was at stake commercially<\/td>\nTwo or three sentences<\/td>\n<\/tr>\n
The actual problem<\/td>\nNot the brief, but what turned out to be wrong<\/td>\nA short paragraph<\/td>\n<\/tr>\n
Constraints<\/td>\nBudget, deadline, legacy system, team capacity<\/td>\nA list of three or four<\/td>\n<\/tr>\n
What was done<\/td>\nDecisions and trade-offs, not a feature list<\/td>\nThe bulk of the page<\/td>\n<\/tr>\n
What happened<\/td>\nNumbers with a baseline and a period<\/td>\nA short table<\/td>\n<\/tr>\n
What we would do differently<\/td>\nOne honest paragraph<\/td>\nOptional and unusually persuasive<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The constraints section is the one clients notice. Everyone claims good work; describing the conditions the work happened under is what makes it believable and, more usefully, what lets a reader with similar constraints recognise themselves.<\/p>\n

Numbers, and how to state them honestly<\/h2>\n

A percentage without a baseline is decoration. “Conversion up 140%” could describe a move from 0.5% to 1.2%, which is real, or from three enquiries to seven, which is noise. Both are worth reporting, and they are worth reporting differently.<\/p>\n

Four rules make a number defensible.<\/p>\n

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  1. Give the before, the after and the window.<\/strong> “From 1.1% to 2.4% over the six months following launch” survives scrutiny; the percentage alone does not.<\/li>\n
  2. Say what else changed.<\/strong> If a redesign coincided with a new ad campaign, say so. A reader who discovers the confound themselves stops believing the rest of the page.<\/li>\n
  3. Prefer commercial figures where the client permits.<\/strong> Enquiries, orders and revenue outrank sessions and rankings, because they are the terms the second reader thinks in.<\/li>\n
  4. Report the ones that did not move.<\/strong> A case study where every metric improved reads as selective, for the same reason a page of five-star reviews does.<\/li>\n<\/ol>\n

    Where a result is genuinely uncertain, the honest formulation is available and costs nothing: state what was measured, what was not, and what could explain the difference. That is the same discipline that makes any conversion figure usable, discussed in how to read conversion benchmarks<\/a>.<\/p>\n

    Working around confidentiality<\/h2>\n

    The most common reason good work is never published is that the client will not agree to be named, and the usual response is to abandon the case study. There are three better options.<\/p>\n