Real-Time SSE Live Stream
Watch HTTP response status codes, canonical loops, and internal redirects appear on your screen millisecond-by-millisecond without page refresh.
ASYNCHRONOUS HIGH-SPEED CRAWLING ENGINE
Real-Time Technical SEO Audits.
Built for Speed, Scale & Precision.
Scanline inspects thousands of web pages asynchronously, diagnosing 25+ technical SEO health checks, duplicate titles, broken links, response times, and indexability with instant multi-sheet Excel exports.
Concurrent httpx Engine
25+ Technical Health Rules
Grouped Duplicate Title Accordions
Multi-Sheet Excel & CSV Exports
BDT (৳) & USD ($) Pricing
92
Site Health Score
Excellent foundation. 4 minor notices.
500
Pages Scanned
21
Passed Checks
2
Errors Found
0.18s
Avg TTFB
3 URLs
"Top 10 Running Shoes for Marathon Training — Codetap"
/shoes/mens/running/
200 OK
TTFB 0.12s
Just now
1,240+
Site Audits Completed
840,000+
Pages Crawled & Analyzed
88/100
Average Site Health Score
380+ /s
Peak Async Crawl Rate
LIVE PRODUCT EXPERIENCE
Explore the Scanline Advantage
Interact with the core capabilities of our real-time audit engine. Built for technical SEOs, digital agencies, and growth engineers.
Non-Blocking Concurrency
Real-Time Server-Sent Events (SSE) Live Feed
Unlike desktop crawlers that lock up your machine or web crawlers that force you to wait for a 20-minute batch job, Scanline establishes an open SSE event pipeline. Watch every discovery, status code, and latency in real time.
Pooled connection workers scaling up
to 50 concurrent requests
Live status counters (200 OK, 301
Redirect, 404 Error, 500 Server)
Real-time Millisecond TTFB latency
calculation per URL
scanline-crawler-worker :: streaming
14:22:01 200 OK
https://example.com/
14:22:01 200 OK
https://example.com/features/
14:22:02 301 MOV
https://example.com/blog
14:22:02 404 ERR
https://example.com/old-pricing
14:22:03 200
OK https://example.com/docs/api/
Intelligent Clustering
Grouped Duplicate Title & Content Accordions
Never get overwhelmed by thousands of disconnected duplicate error rows. Scanline clusters identical titles into intuitive collapsible accordions with URL counters, status badges, and instant inspect triggers.
Automatic normalization & group
clustering by exact title match
Affected URL count pills with
color-coded severity tags
Sub-table pagers and 1-click URL
inspector modal
Duplicate Title Cluster (4 Groups Found)
4 URLs
"Best High-Performance Running Shoes 2026"
/shoes/running/ 200 OK Canonical: Self
/shoes/running/?page=1
Missing Canonical
/category/mens-running
200 OK
/sale/running-gear/
200 OK
Structured Data & Social
Comprehensive Meta, OpenGraph & Schema Validation
Inspect every crawled page down to its JSON-LD structured data markup, OpenGraph social card previews, Twitter tags, character length limits, and heading hierarchy trees.
Character progress indicators for
Title (60 max) and Meta Description (160 max)
Social card preview with og:image,
og:title, and og:description
JSON-LD Schema.org syntax &
entity validation
Page Inspector: /products/hyper-speed-sneaker
og:image verified (1200x630)
SHOPNOVA.COM • OG:PRODUCT
HyperSpeed Pro Carbon Sneaker
Precision Control
Custom URL Lists & Regex Filter Engine
Easily restrict crawls to specific subfolders (e.g. ^/blog/),
ignore noisy tracking parameters (like utm_source, fbclid,
session_id), and test your rules in real time before launching a run.
Include / Exclude subfolder regex
rules with live interactive tester
Automatic parameter stripper to
prevent duplicate crawl bloat
Custom URL list bulk upload for
targeted technical audits
Rule Tester Engine
RULE
Include: ^/blog/.* | Exclude: \?.*utm_
/blog/technical-seo-guide-2026/ → CRAWL ALLOWED
/admin/dashboard/users/ → BLOCKED BY SUBFOLDER RULE
Client-Ready Reports
Multi-Sheet Styled Excel (.xlsx) & CSV Studio
Deliver executive-level deliverables to your clients or engineering teams with a single click. Scanline builds beautifully formatted multi-sheet Excel workbooks with custom header colors, status badges, and severity breakdowns.
Sheet 1: Executive Overview &
Site Health Score Summary
Sheet 2: Actionable Issues Breakdown
with Recommendations
Sheet 3: Complete Crawled Pages
Dataset with TTFB, Status & Meta
scanline_audit_report_full.xlsx
Overview
Issues Breakdown (23)
Crawled Pages (500)
URLStatusHealthTTFB
https://domain.com/200
OK94/1000.09s
https://domain.com/shop/200
OK88/1000.14s
https://domain.com/broken404
Err0/1000.04s
ENGINE ARCHITECTURE
Engineered for Technical SEO Mastery
Traditional crawlers are slow and clunky. Scanline runs non-blocking parallel workers with live Server-Sent Events to crawl and diagnose full domains in seconds.
25+ Deep Health Rules
Identifies duplicate title tags, missing meta descriptions, low word counts, heading jumps (H1 to H3), mixed content, and OpenGraph schemas.
Styled Multi-Sheet Excel
Exports beautifully formatted .xlsx workbooks featuring Executive Summary, Crawled Pages, Issues Matrix, and Canonical Link graphs.
Turbo Concurrency Workers
Harness non-blocking async coroutines to inspect thousands of URLs in seconds while respecting robots.txt directives and server rate limits.
Schema & OpenGraph Inspector
Detects structured JSON-LD data, Twitter Card tags, and Facebook OpenGraph attributes to maximize organic SERP visibility and click-throughs.
Custom Path & Query Rules
Filter query parameters (like UTM tags, session IDs) and enforce whitelist/blacklist subfolder rules before crawl execution begins.
25+ TECHNICAL HEALTH CHECKS
Complete Diagnostic Coverage
Every crawled page is analyzed across six technical SEO disciplines with exact line-level recommendations.
Meta & Titles
- Missing & empty title tags
- Duplicate title tags (grouped accordions)
- Overly long titles (>60 chars)
- Missing meta descriptions
- Short meta descriptions (<70 chars)
Headings & Content
- Missing H1 main headings
- Multiple conflicting H1 tags
- Thin content (<150 words)
- Heading hierarchy skips (H1 to H3)
- Heading tree visual inspector
Links & HTTP Status
- 404 broken links detection
- 301/302 redirect tracking
- Internal nofollow link warnings
- External link distribution
- 500 server error alerts
Indexability & Robots
- Missing canonical tags
- Canonical URL mismatches
- Robots.txt directive compliance
- Meta robots noindex warnings
- XML Sitemap discovery
Performance & Speed
- Time-To-First-Byte (TTFB) latency
- High latency threshold alerts (>0.8s)
- Heavy HTML payload warnings
- Core Web Vitals readiness
- Server compression (Gzip/Brotli)
Social & Schema Data
- Open Graph (og:title, og:image)
- Twitter Card verification
- JSON-LD Schema.org detection
- Microdata & Article markup
- Social sharing preview modal
FREE SEO TOOLKIT
More Tools for Instant SEO & Speed Diagnostics
Need quick standalone analysis on a single webpage? Run these high-precision specialized utilities directly in your browser without crawling full websites.
Page SEO Checker
Analyze any single webpage against 25+ on-page SEO factors. Inspect Title & Meta lengths, H1-H6 heading hierarchy, missing image ALT tags, content word counts, canonical integrity, and JSON-LD schema.
- Instant 0–100 On-Page SEO Health Score
- Full H1–H6 Heading Outline Inspector
- Missing Image ALT Tag Detection
PageSpeed Insights
Measure real-world server latency (TTFB), DNS and TLS connection waterfalls, payload compression, render-blocking scripts, and synthetic Core Web Vitals (LCP, FCP, CLS, TBT) with device simulation.
- Real-Time TTFB & Latency Waterfall
- Core Web Vitals (LCP, FCP, CLS, INP)
- Compression & Render-Blocking Asset Audit
Meta Tag Analyzer
Inspect, edit, and generate meta tags for search engines and social networks. Preview live Google SERP snippets (Desktop & Mobile), Facebook OpenGraph cards, Twitter/X cards, and copy ready-to-use HTML code.
- Google Desktop & Mobile SERP Simulator
- Facebook, LinkedIn & Twitter/X Card Previews
- 1-Click Meta Tag HTML Code Generator
Robots.txt Visual Tester
Test crawl permissions and URL path access against Googlebot and Bingbot RFC 9309 rules, or generate pre-configured templates for WordPress, Next.js, and Shopify.
- Real-Time URL Allowed/Blocked Simulator
- Fetch Live Robots.txt from any Domain
- 1-Click WordPress & Next.js Presets
XML Sitemap Validator
Validate live sitemap.xml files for syntax errors, missing timestamps, duplicate URLs, and broken links, or compile valid Google-compliant XML sitemaps.
- Sitemap Health Scorecard & Diagnostics
- Sample HTTP Status Code Verification
- Instant XML Sitemap Generator
Schema.org JSON-LD Generator
Generate Google-verified JSON-LD structured data for Organizations, Local Businesses, FAQ Pages, Products, Articles, and Recipes with 1-click syntax validation.
- 8 Supported Google Rich Result Types
- Live Syntax & Required Field Validator
- Ready-to-Embed <script> Code Generator
COMPETITIVE BENCHMARK
Scanline Feature Comparison vs. Screaming Frog & scanline
See how Scanline's lightweight asynchronous cloud architecture outperforms legacy desktop software and expensive enterprise suites.
|
CAPABILITIES
Feature & Architecture
|
RECOMMENDED
SCANLINE
Modern Real-Time Async Engine
|
Screaming Frog
Legacy Desktop App (Java)
|
Ahrefs / scanline
Heavy SaaS ($129-$499/mo)
|
|---|---|---|---|
|
Real-Time Server-Sent Events (SSE) Live Feed
Watch crawl discoveries and latency stream live without batch waiting
|
Built-in SSE Stream | Desktop App Only | Batch Background Only |
|
Grouped Duplicate Title Accordions
Clustered by exact title with affected URL count pills & sub-tables
|
Smart Accordion Clusters | Flat Filter Rows | Basic Issues List |
|
Native BDT (৳) & USD ($) Pricing
Direct bKash, Nagad, cards with zero foreign exchange fees
|
bKash, Nagad, Cards | £199/yr Forex Only | $129-$499/mo Forex Only |
|
Multi-Sheet Styled Excel (.xlsx) Export
Executive Overview, Issues Breakdown & Crawled Pages sheets
|
Executive 3-Sheet File | Raw CSV Dump | Generic CSV Export |
|
Zero-Install Cloud Architecture
Run crawls from any browser without hogging laptop memory
|
100% Web & Cloud Ready | Heavy RAM Desktop App | Web-based |
|
Custom Regex Path & Parameter Rules
Include/exclude subfolders with real-time test simulations
|
Live Interactive Tester | Regex Support | Limited URL Filters |
|
OpenGraph & Schema.org JSON-LD Checks
Visual social card preview & entity validation modal
|
Visual Inspector Modal | Raw Data Columns | Supported |
|
Starting Price
Cost per month or annual equivalent
|
৳0 Free / ৳1,499 ($15)/mo
Local bKash/Nagad available
|
£199/year (~৳32,000/yr)
Paid yearly upfront in GBP
|
$129 - $499/mo (~৳15k-৳60k)
Recurring monthly in USD
|
TRANSPARENT PRICING
Simple, Predictable Plans for Everyone
Choose between Bangladeshi Taka (৳ BDT) and US Dollar ($ USD). No foreign transaction bank surcharges, no hidden fees.
Free Starter
For personal blogs & initial technical audits.
৳
0
Forever free • No credit card
- 500 Pages per crawl audit
- 5 Audits per month
- 5 Concurrent crawler workers
- Core 25+ technical health rules
- Standard CSV export
- Community support
Most Popular
Starter Pro
For SEO freelancers, developers & growing sites.
৳
1,499
per month, billed monthly
- 10,000 Pages per crawl audit
- Unlimited audits & saved history
- 25 Parallel Turbo async workers
- Real-Time Live SSE crawler stream
- Grouped duplicate title accordions
- Multi-Sheet Styled Excel (.xlsx) & CSV
- Custom Path (Regex) & Param Rules
- OpenGraph & Schema Inspector
- Priority email & ticket support
Agency Growth
For SEO agencies & high-volume client portfolios.
৳
3,999
per month, billed monthly
- 50,000 Pages per crawl audit
- Unlimited audits & saved history
- 50 Parallel Max Speed workers
- White-Label Client Reports (Branded Excel)
- Up to 5 Team Member Seats
- Custom User-Agent & Rate Control
- Scheduled recurring automated audits
- Dedicated priority 1-on-1 support
Enterprise
For major e-commerce portals & custom pipelines.
৳
9,999
per month, billed monthly
- 200,000+ Pages per crawl audit
- Custom concurrency & proxy rotation
- Dedicated MySQL database instance
- Full REST API & Webhook triggers
- Custom health audit rules & formulas
- 99.9% Uptime SLA & dedicated manager
STREAMLINED WORKFLOW
How Scanline Works
From target URL to executive Excel audit in 3 simple steps.
01
Enter Target & Rules
Input your domain or list of custom URLs. Configure page limits (up to 200,000 pages), subfolder filters, or parameter rules.
02
Live Asynchronous Crawl
Watch live progress via real-time Server-Sent Events. The engine pools concurrent requests while respecting robots.txt directives.
03
Audit & Export Report
Inspect grouped duplicate issues, paginated checks, and health metrics. Export professional Excel (.xlsx) and CSV reports with one click.
TRUSTED BY SEO PROFESSIONALS
What Leading Practitioners Say
Discover why freelance consultants and agencies in Bangladesh and worldwide rely on Scanline.
"The async crawler speed blew me away. We crawled a 12,000-page e-commerce store in under 40 seconds. Having native BDT pricing with bKash checkout made it an absolute no-brainer for our Dhaka agency."
"The grouped duplicate title accordions alone saved our technical team dozens of hours. Instead of wading through endless CSV rows, we see exact title clusters and can export styled Excel sheets directly for clients."
"We replaced our heavy desktop crawlers with Scanline. Being able to run real-time audits on the fly from any browser without hogging laptop memory is a game changer for technical audits."
FREQUENTLY ASKED QUESTIONS
Got Questions? We Have Answers.
Everything you need to know about Scanline's technical crawler, pricing in BDT & USD, and export features.
Scanline uses an asynchronous, non-blocking coroutine engine built in Python with httpx and asyncio. It opens up to 50 concurrent network connections simultaneously to fetch and parse pages in parallel.
Yes! Scanline natively supports Bangladeshi Taka (BDT ৳) with local payment methods (bKash, Nagad, Rocket, Upay, local cards) as well as US Dollar ($ USD) for international users.
Scanline checks 25+ technical SEO categories including HTTP status codes, duplicate title tags, meta description lengths, canonical chains, heading structure, image ALT tags, mixed content, and JSON-LD schemas.
Our Excel export engine creates a formatted workbook with multiple styled tabs: Executive Summary, Crawled Pages, Issues Matrix, and Canonical Link Graphs, ready for clients and stakeholders.
Absolutely. Scanline automatically parses robots.txt to honor crawl-delay and disallow directives. You can also customize request delay thresholds and crawler user-agents from your user dashboard.
READY FOR NEXT-LEVEL TECHNICAL AUDITS
Ready to Audit Your Website at High Speed?
Run your first real-time technical SEO audit in seconds. Available with transparent BDT (৳) and USD ($) pricing.