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Project Overview
Loopex Digital started providing SEO services to ZapCap in April 2026. ZapCap is an AI-powered video caption generator used by more than 500,000 creators, podcasters, agencies, and marketers to add captions, auto B-roll, transitions, and sound effects to short-form video. The platform serves individual creators and businesses integrating captioning through its API.
Goal
At the start of the project, the website faced three problems:
- Almost no organic visibility. ZapCap was receiving 638 monthly organic visitors and ranked for only 55 keywords in Google's top 10.
- No authority to compete. With a Domain Rating of 3, the site had nothing behind it in a category dominated by established SaaS competitors.
- The API page was invisible. ZapCap's highest-value B2B page did not rank at all for its core term, "video captioning API."
Our SEO team set goals for each problem. First, grow organic traffic and expand the number of keywords ranking in Google's top 10. Second, build domain authority through a structured backlink strategy. Third, get the API page ranking for "video captioning API" and the related high-intent terms that bring in B2B customers.
Solutions
Our SEO Team Optimized the API Page for High-Intent Search Terms
The ZapCap API page was not ranking at all for its primary target keyword, "video captioning API." Our SEO team reviewed the page, made on-site optimizations, improved internal linking to and from it, and is building backlinks to the page. It now ranks in positions 5-7 for its core keyword.
Our Content Team Closed Content Gaps with New Landing Pages and Blog Posts
As part of our SEO content strategy development services, our team ran a content gap analysis around ZapCap's two core topics, video captioning API and video generation. Based on the findings, we published:
- A dedicated caption-language hub
- Platform-specific landing pages such as the Instagram and YouTube video caption generators
- Supporting blog content like a guide on adding captions to video via API
Our Team Ran Ongoing Technical SEO Checks to Support Scaling
As traffic and page count grew, our team ran ongoing technical SEO audits covering indexing, crawl efficiency, schema markup, and Core Web Vitals.
Each audit produced a prioritized action list, and our technical SEO team resolved the issues found: indexation problems on new landing pages, broken internal links, and duplicate meta titles. Running these checks monthly meant new pages were indexed and crawled correctly as they launched, instead of sitting unnoticed for weeks.
Loopex Digital's Team Built Domain Authority Through Three Link-Building Strategies
- Backlinks from niche-relevant SaaS websites. Our link-building team secured placements on authoritative SaaS websites. These positioned ZapCap as a strong solution for AI-powered video captioning while building the relevant links the website needed to compete.
- Inclusions in existing comparison and listicle articles. As part of our AI SEO services, our team identified published articles covering the best AI caption generators and video captioning software where ZapCap was not yet mentioned. We then secured link insertions in those comparison or listicle articles to improve visibility in AI-generated search results.
- Original listicle content on third-party websites. Our content team created independently researched articles on topics like the best video captioning software and AI caption generators, published across relevant third-party websites through guest posting. This expanded the number of authoritative sources comparing ZapCap, supporting both traditional SERP visibility and its potential to be referenced in AI-generated answers.
Results
From 638 to 387,520 Monthly Organic Visitors
At the start of the project in April 2026, ZapCap was receiving 638 organic visitors per month. Thanks to the new landing pages, the content gap work, and the backlinks our team secured, monthly organic traffic reached 387,520, an increase of 60,640%.
From 55 to 9,377 Keywords in Google's Top 10
The number of keywords ranking in Google's top 10 grew from 55 to 9,377, an increase of 16,949%. This includes the API page, which climbed from no ranking at all to positions 5–7 for "video captioning API" after our optimization work.
37 High-Quality Backlinks Acquired and Domain Rating Raised from 3 to 37
Our link building team raised ZapCap's Domain Rating from 3 to 37 with just 37 backlink placements. That ratio came from prioritizing relevance over volume, with every placement on a SaaS or software website in ZapCap's own category.
