What is an SEO tool?

An SEO tool is a digital instrument designed to optimize a website’s visibility and ranking on search engine results pages (SERPs).

It functions through various mechanisms to analyze, monitor, and improve the factors that influence a website’s search engine optimization (SEO) performance.

These tools typically provide insights into keyword effectiveness, allowing users to identify relevant terms and phrases that attract organic traffic. They also assess website structure, content quality, and backlink profiles, highlighting areas for improvement to enhance search engine crawling and indexing.

Additionally, SEO tools often offer competitor analysis features, enabling users to benchmark their performance against industry rivals and identify opportunities for differentiation.

Some tools provide recommendations for on-page optimization, such as meta tags, headings, and image attributes, to maximize the relevance and readability of web pages.

Moreover, they may offer performance tracking metrics, such as traffic trends, keyword rankings, and conversion rates, allowing users to measure the effectiveness of their SEO efforts over time.

In essence, an SEO tool serves as a comprehensive resource for website owners and digital marketers to refine their online presence, increase organic visibility, and ultimately drive more qualified traffic to their websites.

1. Errors – Client errors such as broken links & server errors (No responses, 4XX client & 5XX server errors).
2. Redirects – Permanent, temporary, JavaScript redirects & meta refreshes.
3. Blocked URLs – View & audit URLs disallowed by the robots.txt protocol.
4. Blocked Resources – View & audit blocked resources in rendering mode.
5. External Links – View all external links, their status codes and source pages.
6. Security – Discover insecure pages, mixed content, insecure forms, missing security headers and more.
7. URL Issues – Non ASCII characters, underscores, uppercase characters, parameters, or long URLs.
8. Duplicate Pages – Discover exact and near duplicate pages using advanced algorithmic checks.
9. Page Titles – Missing, duplicate, long, short or multiple title elements.
10. Meta Description – Missing, duplicate, long, short or multiple descriptions.
11. Meta Keywords – Mainly for reference or regional search engines, as they are not used by Google, Bing or Yahoo.
12. File Size – Size of URLs & Images.
13. Response Time – View how long pages take to respond to requests.
14. Last-Modified Header – View the last modified date in the HTTP header.
15. Crawl Depth – View how deep a URL is within a website’s architecture.
16. Word Count – Analyse the number of words on every page.
17. H1 – Missing, duplicate, long, short or multiple headings.
18. H2 – Missing, duplicate, long, short or multiple headings
19. Meta Robots – Index, noindex, follow, nofollow, noarchive, nosnippet etc.
20. Meta Refresh – Including target page and time delay.
21. Canonicals – Link elements & canonical HTTP headers.
22. X-Robots-Tag – See directives issued via the HTTP Headder.
23. Pagination – View rel=“next” and rel=“prev” attributes.
24. Follow & Nofollow – View meta nofollow, and nofollow link attributes.
25. Redirect Chains – Discover redirect chains and loops.
26. hreflang Attributes – Audit missing confirmation links, inconsistent & incorrect languages codes, non canonical hreflang and more.
27. Inlinks – View all pages linking to a URL, the anchor text and whether the link is follow or nofollow.
28. Outlinks – View all pages a URL links out to, as well as resources.
29. Anchor Text – All link text. Alt text from images with links.
30. Rendering – Crawl JavaScript frameworks like AngularJS and React, by crawling the rendered HTML after JavaScript has executed.
31. AJAX – Select to obey Google’s now deprecated AJAX Crawling Scheme.
32. Images – All URLs with the image link & all images from a given page. Images over 100kb, missing alt text, alt text over 100 characters.
33. User-Agent Switcher – Crawl as Googlebot, Bingbot, Yahoo! Slurp, mobile user-agents or your own custom UA.
34. Custom HTTP Headers – Supply any header value in a request, from Accept-Language to cookie.
35. Custom Source Code Search – Find anything you want in the source code of a website! Whether that’s Google Analytics code, specific text, or code etc.
36. Custom Extraction – Scrape any data from the HTML of a URL using XPath, CSS Path selectors or regex.
37. Google Analytics Integration – Connect to the Google Analytics API and pull in user and conversion data directly during a crawl.
38. Google Search Console Integration – Connect to the Google Search Analytics and URL Inspection APIs and collect performance and index status data in bulk.
39. PageSpeed Insights Integration – Connect to the PSI API for Lighthouse metrics, speed opportunities, diagnostics and Chrome User Experience Report (CrUX) data at scale.
40. External Link Metrics – Pull external link metrics from Majestic, Ahrefs and Moz APIs into a crawl to perform content audits or profile links.
41. XML Sitemap Generation – Create an XML sitemap and an image sitemap using the SEO spider.
42. Custom robots.txt – Download, edit and test a site’s robots.txt using the new custom robots.txt.
43. Rendered Screen Shots – Fetch, view and analyse the rendered pages crawled.
44. Store & View HTML & Rendered HTML – Essential for analysing the DOM.
45. AMP Crawling & Validation – Crawl AMP URLs and validate them, using the official integrated AMP Validator.
46. XML Sitemap Analysis – Crawl an XML Sitemap independently or part of a crawl, to find missing, non-indexable and orphan pages.
47. Visualisations – Analyse the internal linking and URL structure of the website, using the crawl and directory tree force-directed diagrams and tree graphs.
48. Structured Data & Validation – Extract & validate structured data against Schema.org specifications and Google search features.
49. Spelling & Grammar – Spell & grammar check your website in over 25 different languages.
50. Crawl Comparison – Compare crawl data to see changes in issues and opportunities to track technical SEO progress. Compare site structure, detect changes in key elements and metrics and use URL mapping to compare staging against production sites.