# Best SEO Tools of 2017: Top Software Reviewed

The search engine optimization landscape in 2017 marked a definitive transition from manual link directories and keyword stuffing toward technical site health, semantic depth, and competitive intelligence. Winning organic market share required webmasters to combine first-party indexation portals with robust third-party web crawlers and keyword data aggregators.

Understanding the best SEO tools of 2017 highlights how the industry established modern standards for backlink audits, rank tracking, and content planning.

## Technical Diagnostics and Site Crawling

Before investing in competitive intelligence suites, a reliable 2017 SEO workflow began with technical crawlers to ensure web pages were indexable, canonicalized properly, and free of crawl errors.

### Google Search Console

The starting point for webmasters remained [Google Search Console](https://search.google.com/search-console/about). Unlike third-party tools that rely on external estimates or scraped search engine results pages (SERPs), Search Console provided verified first-party data regarding how Google discovered, crawled, and indexed sites.

Webmasters relied on Search Console to inspect indexing coverage, submit XML sitemaps, track click-through rates (CTR), and identify manual penalties. As outlined in [official Google Search documentation](https://developers.google.com/search/docs/monitor-debug/search-console-start), monitoring crawl errors and query impressions directly within Google's diagnostic environment remains an indispensable prerequisite for search health.

### Screaming Frog SEO Spider

While Search Console provided post-indexing data, technical teams used Screaming Frog SEO Spider to audit environments before deploying changes. Functioning as a local desktop application, Screaming Frog crawled sites locally to surface architecture bottlenecks.

Key use cases in 2017 included:
- Surfacing broken links (404 errors) and server timeouts (5xx status codes)
- Mapping redirect chains and redirect loops
- Auditing missing, duplicate, or unoptimized page title and meta description tags
- Verifying canonical tags and robots.txt rules
- Pinpointing thin content and orphan pages

## All-in-One Suites: Keyword and Competitor Intelligence

For daily rank tracking, domain comparisons, and backlink prospecting, three comprehensive platforms dominated the 2017 market.

### Semrush

Semrush led the market in competitive search intelligence across organic and paid channels. Its domain-versus-domain analysis allowed teams to enter a competitor’s URL and inspect their estimated traffic, ranking keywords, and historical ad creatives. Digital marketing agencies relied heavily on its keyword gap tools to identify high-value search terms where competitors ranked on page one but their own clients did not.

### Ahrefs

Originally built as a specialized link indexing engine, Ahrefs evolved into a full-scale SEO suite with the rapid expansion of its Keyword Explorer and Content Explorer. Its high-frequency web crawler made backlink profiles significantly fresher than most legacy tools.

A standard content workflow involved:
1. Analyzing a competitor domain in Site Explorer.
2. Reviewing the Top Pages report to identify pages attracting the highest organic traffic.
3. Inspecting the referring domains and anchor texts driving those positions.
4. Writing deeper, updated resources to earn citations and rankings.

In [industry evaluations of SEO toolkits](https://www.pcmag.com/picks/the-best-seo-tools), Ahrefs earned widespread praise for its UI speed and link database depth.

### Moz Pro

Moz Pro offered an approachable suite for tracking rankings, performing on-page optimization audits, and discovering keywords. Its proprietary metrics—Domain Authority (DA) and Page Authority (PA)—became standard industry shorthand for estimating a site’s link equity. Detailed breakdowns in [multi-tool comparative reviews](https://www.99signals.com/semrush-vs-ahrefs-vs-moz-vs-spyfu/) often noted Moz as an accessible starting point for small businesses and entry-level marketers.

## Specialized Backlink and Historical Search Data

Outside the all-in-one platforms, specialized utilities solved distinct challenges in backlink quality analysis and historical tracking.

### Majestic

Majestic catered to link-building specialists through its proprietary Flow Metrics:
- **Trust Flow (TF):** Measured link quality based on proximity to trusted seed websites.
- **Citation Flow (CF):** Measured raw link volume and frequency pointing to a URL.

Evaluating the ratio between Trust Flow and Citation Flow allowed practitioners to identify whether a backlink profile consisted of genuine editorial mentions or manipulative link networks.

### SpyFu

SpyFu focused on multi-year search history. Marketers used it to uncover years of historical keyword rankings, ad spend trends, and ad copy variants. This historical context was invaluable when auditing brands in mature, highly contested search markets.

## The Shift From 2017 Search to AI Citations

The toolsets of 2017 were engineered for a traditional SERP model where winning meant capturing one of ten blue links. Today, search behaviors have shifted toward zero-click generative answers. Buyers increasingly query engines like ChatGPT, Perplexity, Gemini, and Google AI Overviews, consuming synthesized answers directly rather than clicking traditional links.

Staying visible in modern search requires publishing clear, answer-ready content designed to be referenced and quoted by AI models. Handling this alongside technical maintenance and keyword research can quickly overwhelm a content team. 

Platforms like [Terradium](https://terradium.io) address this evolution by handling generative engine optimization (GEO). Using a coordinated four-agent pipeline—spanning strategy, research, drafting, and refinement—Terradium creates citable articles and delivers them to your site through a built-in headless CMS and API. It then tracks directional visibility trends across major AI assistants and attributes AI-referred visitors, turning an otherwise manual, disconnected workflow into a measurable system.

The best SEO tools of 2017 demonstrated that organic growth relies on clean technical health, credible backlink profiles, and competitive research. While the interfaces have shifted from classic search result pages to conversational AI summaries, the core requirement remains the same: publishing authoritative, well-structured resources that search engines can easily find, understand, and cite.