Tools and integrations

Free SEO Tools: Catalog and Limits Six categories of tools, what each contains, how daily limits work, and what to check with the tools before launching p… Chrome Extension: Page Analysis and Promotion Launch Sections of the extension: express analysis of the open page, overlay hints on the site, Search Console data, tool cata… Mobile Application Projects, Pulse, reports, balance, tools, and push notifications on your phone. What is more convenient to do in the ap… Public API: Keys, Scopes, and Scenarios How to issue a key, what the four scopes mean, what endpoints are available, limits and response codes, a typical integ… How to Check Redirects and Redirect Chains What redirect codes mean, the dangers of long chains and loops, what to look for in the checker report, and why lost 30… How to Find Broken Links on a Website Where broken links come from, how to read error codes, what to do with each finding, and why internal broken links are … How to Check if a Page is Indexed by Google Three ways to check with their limitations, common reasons for a page not being indexed, and steps to take to return th… Checking robots.txt: what is unnecessarily closed and not closed What the file analyzer checks, five typical mistakes with consequences, why robots.txt does not remove a page from the … Sitemap sitemap.xml: Checking and Common Errors What should be in a proper sitemap, which findings from the analyzer are truly important, why the sitemap does not repl… SSL Certificate Check: Validity, Chain, Protocols What to look for in the check report, why the site may open for you but break for the bot, what to do for each error, a… Checking Domain DNS Records What A, CNAME, MX, TXT, and NS records mean, what to look for in each, when checks are necessary, and why changes are n… SPF, DKIM and DMARC: Email Authentication Explained What SPF, DKIM and DMARC each do, how alignment ties them together, what Gmail and Yahoo require from senders, a setup … WHOIS: Domain Age and Registration Data What fields are in WHOIS and what do they provide in practice, why domain age does not equal website age, when to perfo… DMARC Record: How to Set Up DMARC Step by Step (p=none → quarantine → reject) Every DMARC tag explained, ready-to-use example records, how to read aggregate reports, subdomain policy, external repo… What Is DKIM? DKIM Record, Selector and How to Set It Up How DKIM signatures work, what a DKIM record and selector are, 1024 vs 2048-bit keys, CNAME-delegated keys, rotation an… ASN and Website IP Address: What the Check Shows What is an autonomous system and why check which network the address belongs to: hosting diagnostics, IP neighbors, bla… On-page page check: what to look at first What exactly does the on-page analyzer check, how to prioritize findings, and why it's pointless to invest in links whi… Checking Meta Tags and Snippet in Search Results Working guidelines on title and description length, common mistakes, why Google rewrites snippets, and how to increase … Website Screenshot Online: Why and How to Read Metrics When a page snapshot solves the task faster than any analyzer: checking rendering, mobile version, capturing state befo… How to Find Out What CMS a Site is Built On How to identify the engine, why the result is probabilistic, why this is important for competitor analysis and evaluati… Favicon Check: Why the Icon Is Not Visible in Search What the icon analyzer checks, what the search requirements are, three reasons why the favicon does not appear in mobil… Page Load Speed: What to Measure and What to Fix An analysis of key metrics with benchmarks, a priority order of fixes from most beneficial to cosmetic, and an honest a… Page Link Analysis: Your Own and Others' What to check in your page's links and what to check on someone else's site before placing links, why the source code l… Hidden Watermarks and Invisible Characters in Text What invisible traces are left in text after generators and editors, how they interfere in practice, why their presence… Checking Text for AI: How to Read the Result What signs detectors look for, in which cases they make mistakes in both directions, why a zero percent is not a goal, … Text Uniqueness Check: How to Read the Result What exactly originality check looks for, why percentage is not the goal, how to distinguish harmless matches from copi… Text Tone Analysis Formality, emotionality, confidence, and direction: what the analysis shows, which tone suits different types of pages,… Text Readability: Indices and What to Do with Them What the readability formulas are based on, why their values for the Russian language are a guideline rather than a ver… Keyword Density: Why Calculate It Today Why there is no 'optimal percentage', what the metric really shows, how to read the frequency table, and what to do ins… Text Coherence: Why It's More Important Than Keyword Density How coherence between paragraphs is measured, what breaks it, how to fix torn text, and why shortening often improves c… Text Processing: Remove Machine Style What automatic processing changes, what it fundamentally does not do, when it is appropriate, and the order of working … Spintax: Text Variants and When They Are Appropriate How spintax works, where text reproduction is justified, and where it turns into doorway pages, along with four rules t… Article Optimization for Queries Five steps from defining intent to your own data, four typical findings of an optimizer, and why the first paragraph ma… Keyword Research: Where to Start Three sources that provide the most insights on categorizing queries by page types, why frequency is not the main crite… Domain Trust Check What is included in the domain summary assessment, why it is needed when buying a site and analyzing a platform, and wh… Building a Website's Link Profile How website crawling differs from link databases, what to look for in the results, where to check incoming links, and h… Internal Linking: Where Links Are Missing How to find missed connections between your pages, five rules for meaningful linking, and why it's the cheapest way to … Comparison of Page with Competitors Who to compare, which features to look at first, why copying the leader is pointless, and how to divide findings into q… Checking hreflang: common markup errors Six errors that disable language version markup, the order of checking one page of each version, and why hreflang does … Snippet Preview: How the Page Looks in Search Results Why length is measured in pixels, not characters, five checklist items before publication, what to add to the snippet a… Link Card in Social Networks and Messengers The minimum set of Open Graph markup, four common issues with images and platform caching, and why an empty card costs … Server Response Headers: What to Look For Response code, encoding, caching, compression, and hidden indexing prohibition in X-Robots-Tag — what to check in heade… Image SEO: alt, weight, and sizes What image analysis checks, how to write alt, when to leave it empty, why weight is more important than description tex… Browser Fingerprint: What It Reveals What makes up the fingerprint, why to check it, why attempts to hide make you more noticeable, and how it relates to au… Checking Keyword Cannibalization How to see that multiple pages of yours compete for one query, where it comes from, what to do about it, and when overl… Domain Age: What It Really Means The registration date says less than one might think: it does not guarantee a functioning site or an unchanged topic. W… Security Headers Check Six headers that are enabled on the server and cost almost nothing, the order of implementation from safe to tricky, an… Server Response Compression Check Compression reduces text responses by three to five times with a single server setting. What the check shows, which fil… Cookie Check: Flags, Lifetimes, and Owners What your site and third-party widgets set, which flags are mandatory for session cookies, common findings, and why the… Domain Reputation Score: What It Is and How to Check It Email, security and technical reputation explained, what a quick domain check covers and how to raise a low score. How to Tell if an Image Is AI-Generated Visual tells, Content Credentials, SynthID, detectors and reverse search: a step-by-step way to check a photo for AI an… How to Remove Metadata (EXIF and Location) From Photos What EXIF, GPS, XMP and IPTC reveal, which platforms strip them, and how to remove metadata on iPhone, Android, Windows… What Is llms.txt and Do You Need It? The llms.txt proposal explained: format, llms-full.txt, who really reads the file, how it differs from robots.txt and w… Why Is My IP Blacklisted and How to Get Delisted What DNS blacklists are, which ones matter, the usual reasons an IP gets listed, how to check it correctly and how to g… Is This Website Legit? How to Check if a Site Is Safe Before You Buy or Log In A practical checklist: typosquatting, domain age, what HTTPS does and does not prove, company details, off-site reviews… How to Check if a Website Is Down (for Everyone or Just You) Find out in minutes whether a site is down for everyone or only for you: browser errors, 5xx vs 4xx status codes, DNS, … 301 vs 302 Redirect: Which One to Use (and When It Matters for SEO) Permanent vs temporary redirects, where 303, 307 and 308 fit in, meta refresh and JavaScript redirects, how Google trea… Open Graph Image Size and OG Tags: The Complete Guide The right OG image size (1200×630), required and optional Open Graph tags, twitter:card fallbacks, and how to refresh a… What WordPress Theme Is That? How to Find Any Site's Theme and Plugins Find a site's WordPress theme by hand through the source code and style.css, recognise child themes, spot plugins from … How to Find the IP Address of a Website Find a website's IP online, with nslookup, dig or ping, or in browser dev tools — and read the result correctly: A vs A… How Long Does DNS Propagation Take (and How to Speed It Up) DNS propagation is cache expiry: what TTL means, why "24–48 hours" is a rule of thumb, record vs nameserver changes, ho… Best Free Reverse IP Lookup Tools (2026): 6 Options Compared HackerTarget, YouGetSignal, DNSlytics, ViewDNS.info, SecurityTrails and our own tool compared by free limit, sign-up, d… Best Free Domain Age Checkers (2026): How They Differ and Which to Trust ICANN Lookup, WhoisXML WHOIS History, the Wayback Machine, SmallSEOTools, Whois.com and our own checker compared: RDAP … Best Free Meta Tag Checkers (2026): 6 Tools Compared Screaming Frog, SEOmator, Metatags.io, Ahrefs Webmaster Tools, SEO SiteCheckup and our own analyzer compared by job: on… Best Free Sitemap Validators (2026): What Each One Actually Checks Google Search Console, Patrick Stox’s validator, Swetrix, Screaming Frog, XML-Sitemaps.com and our own analyzer compare…