Webmaster Tools
The daily SEO chores — batch long-tail keywords, batch redirect URLs, robots & TDK generation, plus regex, keyword density, encoding/hash, prohibited words, timestamps, image compression, JSON formatting, link extraction, text dedup, slug conversion, and five IP-lookup channels with a public DNS directory — 26 tools, no login needed. Nineteen run entirely in your browser; the network tools make requests to external services, clearly labeled on each page.
Batch GenerationFeeds in, batch results out
Keyword Combinator
Core words, regions, prefixes, suffixes in separate feeds; combine with templates, auto-dedup, include/exclude filters, pinyin or random sort.
URL Builder
URL template + parameter table to generate links in bulk; supports random tags and Chinese parameter encoding.
Code Generator
robots.txt, Meta/TDK tags, sitemap.xml, 301 redirect rules; Apache and Nginx variants.
Analyze & ConvertPaste content or pick a local file
TDK & Keyword Density
Paste page HTML; extract title, description, keywords, H1-H3, image alts, internal/external links; compute word density.
Regex Tester
Real-time highlight with groups, replace preview, error messages; includes common snippets for rewrite rules, UA detection, link extraction.
Encoding & Hash
URL encode/decode, HTML entities, Base64, MD5; SHA-1/256/512 via WebCrypto; naming-style converters.
Prohibited Words Checker
Scan copy against a built-in extreme-claims dictionary with position highlighting; add custom terms; batch line-by-line mode.
Timestamp & Password
10/13-digit timestamp timezone conversion, duration calculation, reproducible random password generator.
Image Tools
Local image to Base64, width-based compression, batch text watermark, multi-size favicon export; all in browser canvas.
Link Extractor
Paste page HTML or pick a local file; list all a[href] and img[src], classified as absolute/internal/external/anchor, deduped.
Text Deduplicator
Lines in, lines out: remove blanks, dedup (case-insensitive optional), trim whitespace, sort, limit, add prefix/suffix.
Title to Slug
Convert titles to URL-friendly slugs in bulk: keep ASCII, drop or percent-encode CJK, unify separators, truncate by length.
FormatJSON / HTML source handling
Network LookupMakes external requests
IP Geolocation & Connectivity
Lookup IP country/region/city/coordinates; run ping/DNS/HTTP/traceroute from global public probes.
Site IP Lookup
Enter a domain to resolve its server IP, then list all domains bound to that IP.
Same-IP Sites
List sites on one IP sorted by recent activity; active in last 7 days first, historical ones last.
Reverse IP Lookup
Reverse lookup sorted by first-seen descending — recently added domains appear first.
IP to Domains
Same list sorted A→Z; one column domain, one column date; copy column or export txt.
Same-IP Domains
Enter a domain, resolve its IP, then list other domains on the same IP (excluding itself).
Public DNS Directory
Domestic and international public DNS plus ISP addresses by province; one-click speed test where possible.
SEO UtilitiesTitles, QR codes, format converters
SEO Meta Preview
Enter title and description to preview how they appear in search results; overlength highlighted in red.
QR Code Generator
Enter a URL to generate a QR code client-side; adjustable size and color; download as PNG.
CSV ↔ JSON Converter
Paste CSV to convert to JSON and vice versa; supports Tab/semicolon/pipe delimiters.
Text Diff
Original on the left, revised on the right; line-by-line comparison with red deletions and green additions.
Fake Data Generator
Batch generate names, phone numbers, emails, addresses, company names; export as CSV/JSON/TXT.
Markdown Preview
Write MD on the left, rendered HTML on the right; supports headings, lists, code blocks, tables.
How It Works
Why results match manual combination exactly
1. Combination order: The rightmost feed changes fastest. {region}{core} with 3 regions × 5 core words produces all 5 cores for region 1, then region 2, etc. — 15 lines total.
2. Dedup is on by default: When multiple templates produce the same term, only the first is kept. Stats show both "theoretical combinations" and "actual output"; the gap is what dedup and filtering removed.
3. Randomness is reproducible: Random sort and random tags both use a seed. Same seed + same feeds = identical output. Click "new seed" to get a different batch.
4. 20,000 lines per run: This is a browser-side safety cap. When exceeded, it tells you how many theoretical lines were skipped. Narrow feeds or split into multiple runs.
5. Tag syntax matches the site's redirect system: Numeric, alphabetic, date, and random-keyword tags behave exactly as they do in the backend redirect rules. Unknown tags are preserved as-is and won't break URL structure.