There are many different use-cases for WebRTC, from basic web apps that uses the camera or microphone, to more advanced video-calling applications and screen sharing. We have gathered a number of code samples to better illustrate how the technology works and what you can use it for.


A WebRTC application will usually go through a common application flow. Accessing the media devices, opening peer connections, discovering peers, and start streaming. We recommend that new developers read through our introduction to WebRTC before they start developing.


Start with our codelab to become familiar with the WebRTC APIs for the web (JavaScript).

Get started


Programmable Search Engine by Google

Help people find what they need on your website

Add a customizable search box to your web pages and show fast, relevant results powered by Google Search.

Get started

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Why choose Programmable Search Engine

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High-quality search results

Because it’s powered by Google’s core search technology that’s constantly improving, you always get fast, relevant results.

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Customizable functionality

You program your search engine, so you decide what content it searches and how it looks.

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Easy to use

Integrate your search engine on your website quickly.

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Make it yours

Choose sites to include

Decide if you want users to search only your website, or include other sites on the web.

Match the design to your site

Choose from several pre-built themes, or design your own search results page from scratch.

Get it for free or a low price

Pay nothing — and even earn revenue — by showing relevant ads with AdSense, or pay a low price for an ad-free experience.

More resources

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Developer Documentation

Learn more

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Help Center

Find answers

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Read the blog

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Visit the forum

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Earn money from your website with AdSense

Use AdSense to monetize search results pages from relevant ads on your site.

Learn more

Google Cloud logo

Search your organization’s internal content with Cloud

Designed for enterprise, Cloud Search helps your employees quickly, easily, and securely find information across your business.

Learn more

Ready to create your Programmable Search Engine?


Deep Web Search Engines List to Explore Dark Web

Hey! I’m a wizard; I can read minds! I know what you’re searching for, you’re seeking pathways into the Deep web, or otherwise known as Deep web search engines to the simpletons, isn’t that right?

I’ve been strolling the alleys of the Deep web for quite some time now, so why not do it together? I’ll not only get you the best Deep web search engines, but also direct links to deep web sites, and security precautions you should follow.

What are Deep Web Search Engines?

These are search engines which get you sites you can visit on the Deep web or you can access the information which are present on the deep web/dark web. Because the deep/dark web isn’t available on the conventional search engines, you can’t find sites for the same on Google/Yahoo or Bing.

Neither can you memorize the URLs as Deep websites do not have normal URLs and their URLs are rather made up of random words and numbers, such as ghzxq420513dx.onion.That’s why you need the Tor search engines to get deep web links or access information exist on the Hidden web.

Let me tell you that these search engines aren’t like your traditional search engines, most of the times the information may not be as accurate or well—presented as on the normal search engines.

Note that you’ll need the Tor browser and best VPN Service (Have a look at Top 10 best VPN Services, My Choice NordVPN) before you can access .onion sites, as the general browsers can’t access .onion pages, and TOR is a browser crafted for that very purpose.

If you are new to the deep web and don’t know how to access onion sites, you will love to check this guide to access .onion sites with safety.

Without any more delay, let me share onion search engines list with you.

Security tips before accessing the dark web search engines

These are important.

You never know where a link leads you to.

At times, I’ve clicked on a link thinking it’s a harmless, informative site.

To my surprise (and shock) it leads me to the most gruesome, scary and even the most illegal content.

If I wasn’t secure, I could get in quite a bit of trouble, both legal and technical.

Hence, I request you follow the following steps before using any of these search engines:

  • Download a VPN which supports “Onion over VPN” (NordVPN does, and it also doesn’t keep logs which has been independently proven).
  • Close all running applications on your system.
  • Launch the VPN > connect to an “Onion over VPN” server.
  • Launch Tor browser.
  • Update your TOR browser to the latest version.
  • Increase your TOR browser’s security to the “safest”.

This will make sure you can’t be hacked/traced as easily, and that you can’t be legally troubled for unconsciously landing on something illegal.

Note that willingly trying to access/obtain/purchase anything illegal isn’t something we support or encourage. Stay legal.

Deep Web Search Engines List to Explore Dark Web

In this list of the Dark web search engines, I’ll list some search engines and sites or webpages which have a long list of deep/dark web sites.

The Dark Web Links (8000+ Onion Sites)

Website: https://www.thedarkweblinks.com/

The Dark Web Links is not a deep web search engine. It is a Clearnet website but it has a largest database of active dark web links as name implies. Thing which you will like most about Thedarkweblinks.com is here you will get working onion links along with nice and informative description and all links are categorised in a standard manner for your ease. So if you want to know about deep web search engines to find active onion websites collection, give a try to this Clearnet website once. I promise you will never look further to get deep web sites links. In case, you want to search some particular information on hidden web then check out below search engines.


Website: msydqstlz2kzerdg


Ahmia is one of the very few proper deep web search engines which actually is, functions and gets us results like a traditional search engine.

It has a simple user-interface with some instructions, and a search bar on the homepage. Simply entering our queries there gets us the results.

Although for some reason the search result only shows us the URLs, and last update date but no description of the site for most results.

But as long as you know what you’re searching for, it totally can be one of the best dark web search engines bringing out even the darkest of the results.

One of its advanced features which no other onion search engine has provided so far is its “Link Graph” which shows us the connections from one link to another, it’s useless for most users but it still is unique!


Website: xmh57jrzrnw6insl


Torch is without doubt one of the most popular and most applauded deep web search engines in existence.

The sheer fact that the search engine has been live since 1996 establishes its potential, the dark forces of the internet do not let anything live anything this long without quality.

It’s also extremely simple, there’s the logo, and the search bar. Although yes, it does display ads even though they’re not based on your cookies or caches, and are rather static ads which are the same for everyone.

It also claims to have over 1million pages indexed in its database, which I suppose is enough for most of us.


Website: dnmugu4755642434

best deep web search engines

Kilos breaks the Deep Web barriers and ventures into the Darker side of the deep web. In other words, it’s a Dark web search engine and almost every result that you see is illegal. As the name hints, it’s a search-engine focused towards “Drugs”.

It offers a search-feature with filters such as price-range, display currency, shipping source and destination, payment options (for the Drugs) etc. Anyone can find exactly the product they’re looking for using Kilos.

The search-engine takes your keyword and filters, and searches through all its 8 indexed Darknet Markets, 556,728+ forum posts, 764,555 reviews and 3,012 indexed vendors. In most cases you’d find someone who’s willing to sell you drugs based on your preferences.

If a user doesn’t have very specific choices, he/she can also choose products from the “Features listings” on the left-sidebar. It also doubles as a Bitcoin mixer and Monero exchange. No registration required.

Not Evil

Website: hss3uro2hsxfogfq

Not Evil is another one of the deep web search engines which actually is a search engine and not just a webpage like The Hidden Wiki.

It has an extremely simplistic interface with nothing but a sarcastic image on the homepage, and a search bar at the top.

You enter the keywords of what you’re looking for on the search bar and hit enter, the page comes back with the relevant results, even though the results page is quite cluttered and the font isn’t very exciting, the links still work.

For advanced searchers, it also includes data such as the last response of the site along with ping time, and additional results along with the primary search result.

It also doesn’t show ads and hence there’s no additional clutter that you’ll have to fight through.


Website: gjobqjj7wyczbqie


You may notice a slight similarity between Candle and Google, the logo and the user-interface that is; although I assure you it’s nothing like Google.

It’s one of the simplest deep web search engines that exists, and because it’s similar to Google on its interface you won’t find using it hard either.

It displays only .onion results and not clearnets and can be used to directly find deep web links if you know the keywords you’re searching for.


Website: haystakvxad7wbk5

With over 1.5Billion indexed webpages, and nearly 300,000 individual searches performed each day Haystak is arguably one of the best onion search engines in the industry.

It’s lists only onion URLs, although what makes it truly special is that it shows not just website links, but additional advanced information as well which include Historical version, cached version, Datapoints etc.

Although those advanced features we just talked about are included in the “premium” version of the Search engine and not free; the free version only functions as a general search engine with .onion sites.

There may be occasional ads although most of the time it’s an ad-free platform.


Website: abikogailmonxlzl


Abiko is one of the simplest deep web search engines, simplest in the sense that it includes absolutely nothing except a search box, and search results which include only .onion websites, no additional clutter.

The interface is as simple as it can be, and the search page resembles that of Google, although only slightly.

Abiko too is an ad-free search engine so you won’t need any ad-blockers, or have to worry about your screen getting spammed to death with the ads.

Onion Land

Website: 3bbaaaccczcbdddz

Onion Land

OnionLand is well recognized, and is sponsored by Tor and Tor2Web themselves! The homepage is easy to understand, with a search box and a handful of popular search terms in case you’re not loaded with keywords on your end.

It does accept and let users display ads, although that’s occasional and most of the time it’s ad-free just like Duck Duck Go or the other engines listed above. It displays only .onion results.

The search-page isn’t that well designed, it’s only “informative” which servers the purpose to be honest even though it’s not pleasing to the eyes. It displays the URLs in a very “notepad-like” format without any additional decorations.

Although it does have the feature to display cached webpages in case you need them


Website: searchb5a7tmimez


SearX too is a dark web search engine but what makes it special are its advanced settings. It lets you narrow your search down to general, files, map, music, news, social media, videos etc.

Such kind of advanced settings are a rare sight when it comes to these dark web search engines.

Although it has slightly limited indexations and displays only clearnet results and not the .onion ones.

Duck Duck Go

Website: 3g2upl4pq6kufc4m

One of the most privacy-respecting deep web search engines which exist out there is Duck Duck Go.

Unlike Google, Yahoo, Bing etc. which collect nearly every click of yours, time-spent, sites visited before and after data and everything else, Duck Duck Go doesn’t.

It doesn’t log your IP address, the sites you visit, how much time you spend on them or basically anything that may invade your privacy. And it also doesn’t show any ads so there’s that.

It shows only clearnet URLs in its search engine index, but if you’re browsing the deep web and don’t want your search history tracked Duck Duck Go is the solution.


Website: visitorfi5kl7q7i


Visitor differs greatly as compared to the other search engines we just crossed paths with. For starters, its user-interface isn’t that clean, and has quite a few ads.

Secondly, it’s not just a search engine, but also has a links’ directory and a stumbler. And finally, it lets users add their own .onion sites to Visitor index by simply submitting them using a submit form on the search engine itself.

As far as the search engine goes, it lists only .onion URLs, and the layout is unique and isn’t copied from Google or any other popular search engine, although it’s simplistic, quite easy to use and understand.


Website: parazite.pp.fi


It’s one of my personal favourite destinations whenever I’m bored. It’s basically a site which takes you to random deep web sites, it’s pretty fun when you’re not sure where the next click lands you!

The homepage has two sections – Files & Links. Clicking on either one of them takes you to a specific page where there’ll be random links and options you can click, which will again take you to random websites.

For e.g. if you click on “links” and then on the big “Random.onion” image at the top of this specific page, it’ll take you to a random .onion site which you may or may not like.

The Hidden Wiki

Onion Site: zqktlwi4fecvo6ri

The Hidden Wiki Screenshot

This arguably is the best place to start on the Deep web. It’s basically a links’ directory, a webpage with hundreds of .onion (deep web) links you can visit.

The advantage of using The Hidden Wiki is that along with the URLs, it also has a description related to the site, so you know what you’re getting into. Many a times innocent users click on deep web links without knowing what it holds only to regret it later.

It also makes searching easier, you can either use the search bar at the top-right corner, or use the right-sidebar to directly find sites in the categories you’re looking for.

Although fair warning, not all the links on the page may be working, that’s so because these deep web links frequently keep changing due to govt. interventions and other reasons, but a handful of them still work.

Tor Links

Website: torlinkbgs6aabns

Tor Links Screenshot

TorLinks is basically the same thing as The Hidden Wiki; it too is a webpage which lists a lot of deep web sites for you to visit.

Although it has a much better interface, layout and is colourful. Also unlike THW’s right sidebar, it has the categories listed just under the top-bar.

The site links too are better categorized and with much better fonts. Although in this case too not all the links would be functional even though they manually update and edit the dead links periodically.


Website: https://ctrlv.it/pixelbender/1894/1039765744


This actually was discovered by accident, I was on Paraziteand had never seen this page before, I clicked a link and this is where I landed.

It’s a site like Pastebin with I don’t know how many .onion links. Infact this may very well be the longest-ever deep web sites links’ page I’ve ever seen.

It was probably collected and pasted there by an individual, whose name seems to be “grey” (Literally). I pasted it here as a search engine because just like a Search Engine, it has enough links to keep you occupied for months and fulfil almost every need.

Pastebin File with over 5000.onion Links

Website: https://pastebin.com/FpPzQKHg

I don’t wish to mislead you, you’re here searching for ways to get to the Deep web and a search engine which will get you a list of deep web sites, right? That’s exactly what this pastebin file offers.

This too was an unintentional discovery, again all thanks goes to Parazite, with over 5000 .onion links in its arsenal I’m sure it works better than most “search engines” listed here.

Also, this Pastebin file or the above Ctrl+V site as well are almost the same as The Hidden Wiki or the Tor Links we included above, they just lay out a plethora of options for you to explore the Deep web, exactly what you were searching for, isn’t it?

WWW Virtual Library

Website: http://vlib.org/

Virtual Library

The significance of the WWW Virtual Library lies in the fact that it was created by none other than the person who created the “Internet” itself! Yes Tim Berners Lee is the man behind WWW Virtual Library.

It’s also probably the oldest web achieve on the whole Internet, and also the most fit example of a “deep web search engine” that’s because it doesn’t list any dark web results, and is solely isolated to rare, hard-to—find, unindexed content which makes it a deep web search engine.

It has content ranging from Agriculture to Rocket-science, literally; but because the site is nearly as old as the Internet itself, the majority of the listed links have gone dead.

And it doesn’t seem like Tim, or anyone else monitors or edits the site anymore. But the links which still work are no less than goldmines to this date.


Website: quosl6t6c64mnn7d

One of the very rare deep web search engines with an actually impressive interface.

It somehow pulls specific descriptions for each site, if and when they contain the word you search for.

However, the description is omitted if the keyword isn’t available. This provides for a much cleaner interface than most other Tor search engines.

More importantly, a thumbnail of the website is displayed helping you easily recognize/find the sites you’re looking for.

As far as database size goes, it currently has 9,736, 907 indexed onions.

My search for “drugs” got me exactly 395 results.

I must say that’s an impressive number.

The most important and impressive aspect I found with QUO is that it doesn’t display “duplicate” links.

Almost every other TOR search engine does, and it’s frustrating.

QUO only displays unique links (1 result/URL).

Final Words on Deep Web Search Engines

So that’s a wrap folks. I believe I’ve included enough darknet search engines in this list to last you a lifetime, and with time you’ll discover other search engines on your own as well.

As I said earlier, most of these sites aren’t just for the “deep” web, but rather the Dark web, and hence it’s recommended to use a VPN while accessing any of the search results, cause you never know what’s on the other side of the wall (or link in this case).

Anyway, adieu for now. Do drop your feedback and questions (if you have any) about the deep web search engines in the comments down there.

Note: This article is shared only for education purpose. There is no intention to encourage you to browse Deep Web or Dark Web in any way. So do any activity at your own risk and responsibility. I am not responsible for your any harm or loss.


Milvus: An Open Source Vector Similarity Search Engine

Deep learning models have been proven to be an effective method to extract content from unstructured data like image, video, sound, and text. When using pre-trained DL models in production, people will need to handle a huge amount of feature vectors/embeddings. Milvus is an open-source vector similarity search engine, which could help users to perform efficient similarity search over billions of vectors.  Jun will introduce the philosophy and design of Milvus and share the scenarios of Milvus to the audience. Milvus is an incubation project in the LF AI foundation.

Presentation slides



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build apache license

Sourcegraph OSS edition is a fast, open-source, fully-featured code search and navigation engine. Enterprise editions are available.



Try it yourself



  • Git
  • Go (1.15 or later)
  • Docker
  • PostgreSQL (v11 or higher)
  • Node.js (version 8 or 10)
  • Redis
  • Yarn

For a detailed guide to installing prerequisites, see these instructions.


Prebuilt Docker images are the fastest way to use Sourcegraph Enterprise. See the quickstart installation guide.

To use Sourcegraph OSS:

  1. Initialize the PostgreSQL database

  2. Ensure Docker is running

  3. Configure the HTTPS reverse proxy

  4. Start the development server


Sourcegraph should now be running at https://sourcegraph.test:3443.

For detailed instructions and troubleshooting, see the local development documentation.


The doc directory has additional documentation for developing and understanding Sourcegraph:


Sourcegraph OSS is available freely under the Apache 2 license. Sourcegraph OSS comprises all files in this repository except those in the enterprise/ and client/web/src/enterprise directories.

All files in the enterprise/ and client/web/src/enterprise/ directories are subject to the Sourcegraph Enterprise license.

No packages published


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1 in 5 Boeing 777 incidents are engine-related

DENVER (KDVR) — Boeing 777s’ engine issues are not restricted entirely or even largely to the Boeing 777-222 model. Most engine problems in the Boeing 777 line happen in other models.

United Airlines flight 328 rained scrap metal on Colorado’s suburb of Broomfield on Saturday. The flight landed safely back at Denver International Airport after an engine failure occurred shortly after taking off for Hawaii.

Live Updates: United plane’s engine explodes after takeoff from DIA; debris falls from sky

News reports pin responsibility for the Broomfield debris field squarely on Pratt & Whitney PW4000 engines, which are only used in Boeing 777 airplanes. Fleets who use planes with these engines in the United States, South Korea and Japan have since been grounded until the proper inspections can take place, including the United Airlines’ stable of 69 active Boeings.

Since 1997, there have been 145 worldwide incidents involving Boeing 777s according to Aviation Safety Network.

The network records incidents ranging from sick passengers to catastrophic crashes to vanished aircraft. Since 1997, it has recorded 145 incidents involving the Boeing 777.

Of these 145 incidents, nearly one in five – 19% – were some kind of engine trouble.

The engine issues are not confined to the Boeing 777-222, the model involved in Saturday’s engine failure. That model only accounts for one-quarter of the Boeing 777’s engine-related incidents.


Airlines ground dozens of Boeing 777 planes after engine failure over Denver

Boeing (BA) on Sunday recommended that airlines stop flying versions of the aircraft that are equipped with Pratt & Whitney 4000-112 engines while US authorities investigate the Denver incident.

The plane manufacturer said that 69 of the 777 jets that are in service are powered by the engine, while 59 such aircraft are in storage.

United Airlines (UAL), Korean Air, Asiana Airlines, All Nippon Airways and Japan Airlines (JAPSY) all use Boeing 777s that feature Pratt & Whitney 4000 engines.

The groundings come after an engine attached to a United-operated 777 plane failed Saturday, just minutes after the Honolulu-bound flight took off from Denver International Airport. As United Flight 328 returned to the airport, it dropped more engine debris through the roofs of homes and into yards.

An initial examination of the Pratt & Whitney PW4077 engine from that flight showed that two fan blades were fractured, according to the US National Transportation Safety Board (NTSB). The agency said that the remaining blades exhibited damage “to the tips and leading edges.”

The findings are preliminary, but they were still enough to spur some airlines to pull planes that use those types of engines from service. The NTSB said that it will examine the engine, airline and photos and videos taken by passengers on board the flight, along withthe flight data and cockpit voice recorders.

Investigators believe a fan blade in the engine came off and took out another blade, a source familiar with the situation told CNN.

Grounded flights

United said Sunday that it would immediately pull 24 planes from flying “out of an abundance of caution.”The company said its move was voluntary and temporary and should disrupt only “a small number of customers.”

Japan’s transportation ministry, meanwhile, said that it had ordered All Nippon Airways and Japan Airlines to ground planes using that series of engines. The ministry said that order applied to 19 Boeing 777s at All Nippon Airways and 13 at Japan Airlines that have Prat & Whitney 4000 engines.

South Korea’s Asiana Airlines, which owns nine of the planes, said it would stop using them, too.

The jets are also used by Korean Air, which on Tuesday said it would ground the planes. The airline has six of the jets in service, while 10 are in storage.

According to the most recent registry data, the only airlines that operate with the affected engines are in the United States, Japan and South Korea. United is the only US operator with this type of engine in its fleet.

Video shows United Airlines plane engine on fire after takeoff from DenverVideo shows United Airlines plane engine on fire after takeoff from DenverVideo shows United Airlines plane engine on fire after takeoff from Denver


Video shows United Airlines plane engine on fire after takeoff from Denver 03:17

Ongoing investigation

Both Boeing and Pratt & Whitney have said they are cooperating with the US investigation into the Denver incident.

“We are pleased to hear that United Airlines flight 328 returned safely to Denver,” Boeing said in a statement. “Boeing technical advisers are supporting the US National Transportation Safety Board with its investigation.”

Pratt & Whitney — a subsidiary of Raytheon Technologies (RTN) — said it has sent a team to work with investigators looking into the engine failure.

“Pratt & Whitney is actively coordinating with operators and regulators to support the revised inspection interval” of the 4000 engines that power certain 777s,” the company said, adding that “any further investigative updates regarding this event will be at the discretion of the NTSB.”

The US Federal Aviation Administration on Sunday alsoissued an emergency order saying it would be stepping up inspections of 777s that use certain Pratt & Whitney 4000 engines.

“We reviewed all available safety data following [the] incident,” FAA Administrator Steve Dickson said. “Based on the initial information, we concluded that the inspection interval should be stepped up for the hollow fan blades that are unique to this model of engine, used solely on Boeing 777 airplanes.”

— Gawon Bae, Sophie Jeong and Junko Ogura contributed to this report.


elasticsearch – Open Source, Distributed, RESTful Search Engine


Bug#948384: RFP: elasticsearch — Open Source, Distributed, RESTful Search Engine

(too old to reply)

PermalinkPackage: wnpp
Severity: wishlist

* Package name : elasticsearch
Version : 7.5
Upstream Author : ***@elastic.co
* URL : https://github.com/elastic/elasticsearch
* License : Apache-2.0
Programming Lang: Java
Description : Open Source, Distributed, RESTful Search Engine

Fully free version here: https://www.elastic.co/downloads/elasticsearch-oss
Already packaged by upstream here: https://www.elastic.co/guide/en/elasticsearch/reference/7.5/deb.html#deb-repo

Elasticsearch is a distributed RESTful search engine built for the cloud. Features include:

Distributed and Highly Available Search Engine.

Each index is fully sharded with a configurable number of shards.

Each shard can have one or more replicas.

Read / Search operations performed on any of the replica shards.

Multi Tenant.

Support for more than one index.

Index level configuration (number of shards, index storage, …​).

Various set of APIs


All APIs perform automatic node operation rerouting.

Document oriented

No need for upfront schema definition.

Schema can be defined for customization of the indexing process.

Reliable, Asynchronous Write Behind for long term persistency.

(Near) Real Time Search.

Built on top of Apache Lucene

Each shard is a fully functional Lucene index

All the power of Lucene easily exposed through simple configuration / plugins.

Per operation consistency

Single document level operations

/* if(isset($GLOBALS[‘ADSENSE_CENSORSHIP’]) && !$GLOBALS[‘ADSENSE_CENSORSHIP’] && isset($GLOBALS[‘ads_dispatcher_id’]) */ ?>


Author adminPosted on February 10, 2021