SEO Instrumenti

63 public tools organised by task

All SEO tools

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Category

63 tools

Technical SEO

Crawling, indexability, HTTP status codes, redirects, canonical, hreflang, sitemaps and robots rules.

17 tools
JavaScript SEO Dependency Audit Inspect which important SEO signals exist in server HTML and identify structures that are likely to depend on JavaScript, without an external browser service. Redirect Chain and HTTP Status Checker Trace every allowed HTTP redirect step and identify loops, long chains, temporary redirects and an unexpected final destination. Faceted Navigation Analyzer Inspect a local URL sample for reordered parameters, tracking or session fields and transparent evidence of combinatorial crawl growth. URL Migration Map Validator Validate a local old-to-new URL map for duplicates, conflicts, self redirects, chains, cycles and host or scheme migration risks. XML Sitemap Validator Check an XML sitemap or sitemap index for structure, absolute locations, duplicates, host scope and valid lastmod values. XML Sitemap Generator Crawl a limited sample of public same-origin pages and create a valid XML sitemap without inventing lastmod dates or promising indexing. Robots.txt Generator Create a robots.txt file with current crawler presets, Allow and Disallow rules and sitemap locations, with an explanation of each directive. URL Rewrite Rule Generator Prepare reviewable rewrite examples for clean URL paths, together with redirect and canonical checks to complete before deployment. Content Freshness and Indexability Checker Review Last-Modified, ETag, robots directives, canonical, sitemap lastmod and page dates after the retirement of Google Cache. IndexNow Package Preparation Validate up to 100 same-host URLs and prepare a redacted JSON package with clear manual submission steps, without an automatic request to IndexNow. Search Crawler View Inspect the metadata, headings, visible text and links available in server-rendered HTML without claiming to reproduce a specific search engine. HTML Source Viewer Inspect an escaped, size-limited HTML response from a public page, together with its status, content type and final URL. WWW Redirect Checker Trace the HTTP path between www and non-www variants and confirm that it reaches the chosen final HTTPS address without an unnecessary chain. Indexability and Discoverability Check Inspect HTTP, robots.txt, meta and X-Robots-Tag directives, canonical and sitemap evidence, then open a separate manual search. Technical and On-Page SEO Audit Run an explainable page audit across HTTP, indexability, metadata, headings, links, images, structured data and security signals. Semantic and Agent Navigation Audit Inspect server HTML landmarks, genuine links and buttons, form labels, accessible action names and stable navigation content with concrete evidence. Robots.txt and Indexability Tester Check robots.txt, meta robots, X-Robots-Tag, HTTP status and canonical signals together for a specific public URL.

On-page SEO and content

Titles, metadata, document structure, copy, images and machine-readable signals on a page.

12 tools
Image ALT and Responsive Image Analyzer Inspect img, picture and source elements for missing or intentionally empty alt text, dimensions, lazy loading and responsive-image signals. Meta Tag Analyzer Extract title, meta description, robots, canonical, Open Graph and X card fields from a public page and review conflicts or omissions. Canonical and Hreflang Validator Validate the preferred URL, language and region codes, x-default and a bounded set of reciprocal hreflang references. Meta Tag Generator Create title, description, robots, canonical, Open Graph, X card and viewport markup with a live preview and copy-ready HTML. Keyword Idea Generator Create grouped thematic and long-tail variations from a seed phrase without inventing search volume, competition or traffic forecasts. Keyword Density Analyzer Measure word and phrase frequency, density and context without treating any percentage as an ideal SEO target. SERP and Social Sharing Preview Preview title, description, URL and image treatments for search, Open Graph and X cards from entered fields or fetched metadata. Verified Corpus Text Check Automatically compare text with a verified corpus of public sources and inspect exact matches, measured coverage and source URLs. Structured Data Inspector Extract JSON-LD, Microdata and RDFa, inspect declared schema.org types and identify syntax or basic structural problems. Keyword Visibility Workbook Filter a Search Console CSV or TSV export by query and domain, or prepare a transparent manual search workflow without automated SERP scraping. Compare Two Texts Compare two submitted texts through exact normalized five-word sequences and review coverage, Jaccard similarity and concrete shared passages. Code-to-Text Ratio Analyzer Compare extracted visible text bytes with the fetched HTML size as a diagnostic measure, not a search ranking metric.

Links and crawling

Internal and external links, broken URLs, backlink evidence and ethical outreach planning.

8 tools
Page Link Analyzer Extract links from a public HTML document and classify internal, external, nofollow, invalid and manually reviewable destinations. SEO Log File Analyzer Analyze Apache or Nginx access logs locally by status, claimed crawler, path, hour and URL-parameter traps without uploading the file. Page Link Counter Count and classify links in one fetched HTML document as internal, external or unsuitable for normal HTTP crawling. Link Value Estimator Compare link-value scenarios using visible, user-controlled inputs and weights rather than presenting an objective market price. Ethical Link-Building Planner Turn a campaign goal into a structured prospecting, value proposition and personalised outreach plan without automated spam posting. Broken Link Checker Check a bounded sample of HTTP links from a page and distinguish confirmed errors from timeouts, DNS failures and blocked requests. Backlink Source Verifier Verify whether known public source pages actually link to a target URL or domain and inspect the destination, anchor text and rel attributes. Page Evidence Profile Inspect HTTP, HTTPS, indexability, metadata, headings, content, links, images and structured data without inventing a Page Authority score.

Domains, DNS and networks

RDAP, DNS, IPv4 and IPv6, certificates and verifiable public-infrastructure signals.

8 tools
RDAP and WHOIS Lookup View public registration status, events, nameservers and entities through RDAP, with privacy-redacted or unpublished fields left blank. Domain to IP Lookup Resolve the current public IPv4 and IPv6 addresses for a domain and review the DNS evidence returned at the time of the request. DNS Record Lookup Inspect current A, AAAA, MX, NS and other available DNS records with resolver, cache and TTL limitations stated clearly. Domain Age Checker Find a published registration event through RDAP and calculate its calendar age, while marking hidden or unavailable dates clearly. Hosting and Network Inspector Combine DNS, reverse DNS and RDAP evidence without claiming that a CDN or IP owner is necessarily the contractual host. Domain Evidence Profile Collect observable DNS, RDAP, HTTPS, HTTP and homepage SEO signals without approximating MozRank or any proprietary score. IP and Network Prefix Comparison Compare public IPv4 and IPv6 addresses and transparent /24 and /48 grouping prefixes without an external provider or ownership inference. Domain Evidence Comparison Compare domains using the same DNS, HTTPS, HTTP and homepage SEO checks without inventing a Domain Authority score.

Performance

HTTP timing, page size, PageSpeed data and preparation for responsive testing.

6 tools
HTTP Cache and Compression Analyzer Inspect Cache-Control, validators, Vary, Age, Content-Encoding and observed CDN or cache headers from one bounded public fetch. Lightweight Website Speed Test Measure one server-side HTTP request, including timing, status and main-response size, without presenting it as Lighthouse or Core Web Vitals. Responsive Viewport Planner Prepare a practical set of viewport sizes and a manual responsive-testing checklist without pretending to emulate a specific device. HTML Page Size Checker Measure the downloaded HTML response size and key HTTP metadata while keeping subresources and browser transfer size clearly separate. Server Status Checker Make a bounded, one-time HTTP check for status, redirects and response timing without presenting it as continuous uptime monitoring. Technical Performance Audit Measure the server response and HTML size, then inspect compression, caching and statically visible scripts, styles, images and fonts without an external API.

Security and privacy

TLS, HTTP security headers, risk signals, DNSBL, exposed email addresses and AI crawler policies.

6 tools
SSL Certificate and Security Header Analyzer Review certificate validity and chain details alongside HSTS, CSP, frame, MIME, referrer and permissions headers. Suspicious Domain Signal Checker Review transparent lexical signals such as confusable characters, unusual labels and excessive hyphens without turning them into a reputation score. DNSBL Lookup for Public IP Addresses Prepare public IPv4 addresses for a manual DNSBL lookup and, when the site operator has approved specific zones, inspect their exact DNS responses. Email Exposure Checker Find visibly published email patterns and mailto links in fetched HTML to review their exposure to automated collection. AI Crawler Access Checker Check robots.txt policies for training and search crawlers, product-control tokens and user-triggered AI fetchers with their roles kept distinct. Technical Website Risk Audit Inspect HTTPS, redirects, security headers, mixed content, forms, frames, third-party scripts and explainable suspicious code patterns.

Generators and web utilities

Text analysis, URL operations, hashes, browser information and practical everyday web tasks.

6 tools
URL Encoder and Decoder Percent-encode or decode a URL component locally in the browser without sending the value over the network. Word Counter and Text Analyzer Count words, characters, sentences and paragraphs, then review reading time, keyword frequency, n-grams and repeated phrases locally. MD5, SHA-256 and SHA-512 Generator Calculate MD5, SHA-256 and SHA-512 locally in the browser, with clear guidance on cryptographic and password-storage limitations. Browser Tab Screenshot Capture a tab, window or screen that you explicitly select and download the current frame locally without an external screenshot service. Browser Information View the limited browser, language, platform, viewport and feature signals exposed by your browser without fingerprinting or hidden profiling. What Is My IP Address? See the public IP address observed for this request, without claiming whether it is static, inferring an exact location or retaining a history.