200 Top SEO Ranking Factors May 2026

TOP SEO Factors for 2026-05 previous

Top SEO Factor data is updated daily for latest "month to date" measurements.

	Name	Correlation	#1 Max	Page 1 Avg	Usage %	Searches %
1	Number of Unique LSI Words Used Diversity	-0.23	951	315	84 %	81 %
2	Search Result Domain is .com, .net, or .org Other	-0.21	1	1	6 %	81 %
3	Number of Top 200 Shared Factors Used Diversity	-0.21	51	38	98 %	95 %
4	Number of Top 100 Shared Factors Used Diversity	-0.21	38	28	97 %	96 %
5	Load Time Milliseconds Performance	-0.21	4042	1192	82 %	92 %
6	Number of Distinct Entities Used Diversity	-0.2	59	30	80 %	96 %
7	Number of Top 50 Shared Factors Used Diversity	-0.2	16	12	97 %	94 %
8	Search Result Domain is .com Other	-0.2	1	1	6 %	81 %
9	Entities in Sentences Relevancy	-0.2	1308	150	68 %	94 %
10	Variations in H1, H2, and H3 Tags Relevancy	-0.2	378	12	59 %	89 %
11	Entities in Title Tag Relevancy	-0.2	7	3	67 %	93 %
12	Entities in the HTML Tag Relevancy	-0.2	1436	153	73 %	95 %
13	Variations in H1-H6 Tags Relevancy	-0.2	409	13	59 %	90 %
14	Variations in H1 and H2 Tags Relevancy	-0.19	287	7	57 %	92 %
15	Number of Backlinks Authority	-0.19	382197	16992	52 %	74 %
16	Number of Unique Variations Used Diversity	-0.19	19	7	75 %	90 %
17	Entities in H2 Tags	-0.19	46	7	52 %	96 %
18	Number of Referring Domains Authority	-0.19	3169	247	51 %	75 %
19	Variations in P Tags Relevancy	-0.19	4557	113	61 %	92 %
20	Entities in H3 Tags	-0.19	40	8	44 %	92 %
21	Entities in H1 Tags	-0.19	5	2	52 %	88 %
22	Variations in Search Result Document File Name Relevancy	-0.18	8	1	43 %	83 %
23	Variations in Div Tags Relevancy	-0.18	68329	999	70 %	91 %
24	Number of Factors Used Diversity	-0.18	271	171	98 %	89 %
25	Word Count Size	-0.18	4408	1431	83 %	90 %
26	Number of Do Follow Backlinks Authority	-0.18	377721	14871	47 %	75 %
27	Unabridged Word Count Size	-0.18	10152	1900	84 %	90 %
28	Number of No Follow Backlinks Authority	-0.18	61104	2565	39 %	71 %
29	Clean Text Kilobytes Size	-0.18	56	13	70 %	89 %
30	Number of Heading Tags Size	-0.17	45	21	69 %	88 %
31	Variations in Body Tags Relevancy	-0.17	93621	1053	75 %	88 %
32	LSI Words in Sentences Relevancy	-0.17	2378	754	62 %	95 %
33	Variations in LI Tags Relevancy	-0.17	2914	78	59 %	87 %
34	Variations in H1 Tags Relevancy	-0.17	20	2	50 %	86 %
35	Variations in HTML Tags Relevancy	-0.17	93621	1043	74 %	89 %
36	Variations in H2 Tags Relevancy	-0.17	280	6	43 %	90 %
37	Has Entities in H1 Tags Relevancy	-0.17	1	1	54 %	87 %
38	Variations in Search Result URL Path Relevancy	-0.17	10	2	44 %	84 %
39	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.17	32	2	40 %	85 %
40	Number of P Tags Size	-0.17	114	39	70 %	90 %
41	Variations in Sentences Relevancy	-0.17	8372	157	68 %	92 %
42	Leading Variations in H1-H6 Tags Relevancy	-0.17	36	2	41 %	85 %
43	Number of H2 Tags Size	-0.17	23	7	63 %	90 %
44	Number of HTML Tags Size	-0.17	2805	1025	82 %	87 %
45	Term Frequency Relevancy	-0.17	6	3	74 %	90 %
46	Variations in Main Tags Relevancy	-0.17	40166	560	38 %	86 %
47	Variations in the Title Tag Relevancy	-0.16	23	2	62 %	84 %
48	Variations in A Tags Relevancy	-0.16	9305	136	60 %	86 %
49	Number of H1 Tags Size	-0.16	3	1	66 %	91 %
50	Number of H3 Tags Size	-0.16	26	9	55 %	83 %
51	Number of Images Size	-0.16	309	31	70 %	91 %
52	Has Entities in H2 Tags Relevancy	-0.16	1	1	53 %	88 %
53	Number of Links Authority	-0.16	624	136	75 %	87 %
54	Variations in Search Result Display URL Relevancy	-0.16	19	2	76 %	78 %
55	Variations in Search Result Link Text Relevancy	-0.16	19	2	76 %	78 %
56	Number of HTTPS Links Authority	-0.16	623	135	75 %	87 %
57	Number of Internal Links Authority	-0.16	619	122	74 %	86 %
58	Number of DoFollow Links Authority	-0.16	614	133	75 %	88 %
59	Search Result Number of Dirs in Path Other	-0.16	3	2	72 %	78 %
60	Variations in Distinct A Tag HREF Attributes Relevancy	-0.16	1808	50	54 %	86 %
61	Variations in H3 Tags Relevancy	-0.16	123	5	34 %	84 %
62	Variations in A Tag HREF Attributes Relevancy	-0.16	2876	77	54 %	86 %
63	Variation Count in Top 30KB Relevancy	-0.16	4928	80	63 %	90 %
64	Entities in Meta Description Tag Relevancy	-0.16	19	3	59 %	88 %
65	Variations in Search Result URL Relevancy	-0.16	21	2	54 %	77 %
66	LSI Words in H2 Tags Relevancy	-0.16	91	21	53 %	95 %
67	Variations in First 100 Words Relevancy	-0.16	177	9	60 %	84 %
68	Number of Images with ALT Text Size	-0.16	304	22	64 %	88 %
69	Variations in Span Tags Relevancy	-0.15	1077	25	46 %	85 %
70	Variations in the Canonical URL Relevancy	-0.15	50	3	46 %	83 %
71	Number of External Links Authority	-0.15	41	16	72 %	87 %
72	Has Entities in H3 Tags Relevancy	-0.15	1	1	45 %	85 %
73	Number of DoFollow External Links Authority	-0.15	40	14	71 %	86 %
74	Clean Keyword Density in the HTML Tag Relevancy	-0.15	203	10	67 %	76 %
75	Variations in Absolute URLs Relevancy	-0.15	14393	272	58 %	87 %
76	LSI Words in H1 Tags Relevancy	-0.15	10	4	53 %	93 %
77	LSI Words in Title Tag Relevancy	-0.15	15	6	66 %	90 %
78	Average Words Per Sentence Size	-0.15	172	29	74 %	83 %
79	Leading Variations in H1 Tags Relevancy	-0.15	2	1	26 %	79 %
80	Is Home Page Other	-0.15	1	1	19 %	39 %
81	Number of Images without ALT Text Size	-0.15	32	10	52 %	87 %
82	Variations in OpenGraph Title Relevancy	-0.15	16	2	54 %	84 %
83	Number of Sentences Size	-0.15	612	156	79 %	86 %
84	Title Tag Has Entities Relevancy	-0.15	1	1	68 %	83 %
85	Percentage of DoFollow Links Authority	-0.15	97	80	75 %	90 %
86	Variation Density in Top 30KB Relevancy	-0.15	310	12	59 %	78 %
87	Variations in Meta Description Relevancy	-0.15	49	2	53 %	82 %
88	Variations in Section Tags Relevancy	-0.15	1250	39	36 %	91 %
89	Number of HTML Comments Size	-0.15	226	43	66 %	87 %
90	Variations in OpenGraph Description Relevancy	-0.15	45	2	47 %	76 %
91	LSI Words in H3 Tags Relevancy	-0.15	97	23	46 %	88 %
92	Flesch Kincaid Reading Grade Level Other	-0.14	6	1	93 %	86 %
93	TF/IDF Relevancy	-0.14	2	1	57 %	87 %
94	Title Length Size	-0.14	100	51	80 %	74 %
95	Number Of JSON-LD Types Relevancy	-0.14	57	13	53 %	86 %
96	Number of Questions In Headings Size	-0.14	6	2	35 %	85 %
97	Title Word Count Size	-0.14	28	8	80 %	74 %
98	Exact Matches in the HTML Tag Relevancy	-0.14	242	11	31 %	87 %
99	Number of Facebook Pages Authority	-0.14	4	2	51 %	81 %
100	Variations in ALT Attributes Relevancy	-0.14	588	10	41 %	87 %
101	Percentage of DoFollow External Links Authority	-0.14	24	12	70 %	80 %
102	Leading Variations in Title Tag Relevancy	-0.14	1	1	29 %	80 %
103	Number of Includes Technology	-0.14	68	26	78 %	75 %
104	Has Meta Charset Technology	-0.14	1	1	72 %	83 %
105	Number of US Phone Numbers Trust	-0.14	249	11	35 %	80 %
106	Leading Variations in H2 Tags Relevancy	-0.14	22	1	21 %	83 %
107	Has Privacy Policy Trust	-0.14	1	1	59 %	74 %
108	Percentage of DoFollow Internal Links Authority	-0.14	89	68	74 %	84 %
109	Variations in Script Tags Relevancy	-0.14	52712	663	62 %	86 %
110	Inline CSS Kilobytes Size	-0.14	189	59	63 %	83 %
111	Number of JavaScript Includes Technology	-0.14	46	18	77 %	75 %
112	Has US Phone Number Trust	-0.14	1	1	37 %	70 %
113	LSI Words in Meta Description Tag Relevancy	-0.14	23	10	55 %	90 %
114	Number of LinkedIn Pages Authority	-0.14	8	1	30 %	80 %
115	Entities in H4 Tags	-0.14	21	2	19 %	87 %
116	Has JSON-LD Schema Markup Relevancy	-0.14	1	1	51 %	83 %
117	Variations in Nav Tags Relevancy	-0.14	7034	164	43 %	86 %
118	Search Result Domain Length Size	-0.14	23	16	82 %	79 %
119	Search Result Host Length Size	-0.14	23	16	82 %	79 %
120	Number of Social Accounts Authority	-0.14	8	2	38 %	83 %
121	Headings Has Question Other	-0.14	1	1	35 %	78 %
122	Variations making whole H1-H6 Tags Relevancy	-0.14	3	1	14 %	74 %
123	Has OpenGraph Image Relevancy	-0.14	1	1	53 %	70 %
124	Exact Matches in Sentences Relevancy	-0.14	37	3	22 %	86 %
125	Variations making whole A Tags Relevancy	-0.13	115	3	25 %	77 %
126	Variations in Strong Tags Relevancy	-0.13	289	6	23 %	77 %
127	Number of Forms Technology	-0.13	10	2	46 %	82 %
128	Exact Matches in H1-H6 Tags Relevancy	-0.13	8	1	19 %	83 %
129	Number of Questions In H2 Tags Size	-0.13	3	1	23 %	78 %
130	Search Result Uses HTTPS Other	-0.13	1	1	83 %	86 %
131	Variations making whole H1, H2, and H3 Tags Relevancy	-0.13	3	1	12 %	74 %
132	Meta Description Length Size	-0.13	196	116	66 %	77 %
133	Has Form Technology	-0.13	1	1	45 %	78 %
134	Has Meta Viewport Technology	-0.13	1	1	81 %	79 %
135	Number of Social Pages Authority	-0.13	25	4	60 %	80 %
136	Has Terms of Service Trust	-0.13	1	1	43 %	74 %
137	Has Canonical URL Authority	-0.13	1	1	69 %	80 %
138	Variations in Footer Tags Relevancy	-0.13	6817	78	33 %	82 %
139	Word Count in Meta Description Size	-0.13	47	19	66 %	80 %
140	Number of Questions In H3 Tags Size	-0.13	4	2	18 %	79 %
141	Uses JSON-LD name Other	-0.13	1	1	50 %	83 %
142	Leading Variations in H3 Tags Relevancy	-0.13	9	1	15 %	71 %
143	Number of H4 Tags Size	-0.13	23	4	31 %	80 %
144	Number of Facebook Accounts Authority	-0.13	2	1	24 %	75 %
145	Number of Instagram Pages Authority	-0.13	23	2	39 %	77 %
146	Number of Absolute URLs Authority	-0.13	617	274	83 %	84 %
147	Variations Making Whole Span Tags Relevancy	-0.13	4	1	17 %	83 %
148	Page Size Kilobytes Size	-0.13	748	343	82 %	72 %
149	Number of CSS Includes Technology	-0.13	22	9	72 %	74 %
150	Number of Prices Size	-0.13	456	106	66 %	82 %
151	Meta Description Tag Has Entities Relevancy	-0.12	1	1	60 %	80 %
152	Number of Questions Size	-0.12	63	13	64 %	83 %
153	Number of Twitter Accounts Authority	-0.12	5	1	20 %	77 %
154	Uses Schema brand Other	-0.12	1	1	6 %	40 %
155	Uses Schema sku Other	-0.12	1	1	7 %	19 %
156	Uses JSON-LD description Other	-0.12	1	1	38 %	75 %
157	Exact Matches in Top 30KB Relevancy	-0.12	14	2	17 %	84 %
158	Exact Matches in Title Tag Relevancy	-0.12	1	1	17 %	81 %
159	Variations in ID Attributes Relevancy	-0.12	1696	26	17 %	82 %
160	Variations in Button Tags Relevancy	-0.12	5433	70	14 %	85 %
161	Uses JSON-LD ListItem Other	-0.12	1	1	31 %	73 %
162	Variations in Article Tags Relevancy	-0.12	3771	53	21 %	74 %
163	Has Schema Markup Relevancy	-0.12	1	1	61 %	73 %
164	Variations Making Whole LI Tags Relevancy	-0.12	5	1	20 %	79 %
165	Uses JSON-LD url Other	-0.12	1	1	45 %	80 %
166	Is Article Page Other	-0.12	1	1	39 %	68 %
167	Uses JSON-LD Organization Other	-0.12	1	1	29 %	76 %
168	Has Meta Description Relevancy	-0.12	1	1	64 %	74 %
169	Uses JSON-LD BreadcrumbList Other	-0.12	1	1	30 %	73 %
170	Search Result URL Length Size	-0.12	93	60	95 %	60 %
171	Uses Schema latitude Other	-0.12	1	1	8 %	31 %
172	Uses Schema longitude Other	-0.12	1	1	8 %	31 %
173	Uses Schema product Other	-0.12	1	1	9 %	45 %
174	Uses JSON-LD sku Other	-0.12	1	1	6 %	19 %
175	Uses JSON-LD latitude Other	-0.12	1	1	8 %	32 %
176	Uses JSON-LD longitude Other	-0.12	1	1	8 %	32 %
177	Uses JSON-LD GeoCoordinates Other	-0.12	1	1	13 %	40 %
178	Has Contact Page Trust	-0.12	1	1	58 %	70 %
179	Number Of Claimed Brands Other	-0.12	60	3	23 %	86 %
180	Search Result Summary Length Size	-0.12	160	152	98 %	62 %
181	Variations in the last 100 words Relevancy	-0.12	176	6	44 %	75 %
182	Variations in H4-H6 Tags Relevancy	-0.12	40	2	16 %	73 %
183	Has OpenGraph Type Relevancy	-0.12	1	1	59 %	78 %
184	Number of H5 Tags Size	-0.12	6	2	15 %	74 %
185	Has Entities in H4 Tags Relevancy	-0.12	1	1	19 %	77 %
186	Uses Schema geocoordinates Other	-0.12	1	1	13 %	40 %
187	Variations in B Tags Relevancy	-0.12	204	6	10 %	75 %
188	Variations in I Tags Relevancy	-0.12	568	10	17 %	74 %
189	Number of Nofollow Links Authority	-0.12	15	4	22 %	79 %
190	Has Meta Twitter Card Authority	-0.12	1	1	51 %	65 %
191	Number of Email Addresses Trust	-0.12	13	4	39 %	76 %
192	Uses Schema name Other	-0.12	1	1	56 %	75 %
193	Uses Schema aggregaterating Other	-0.12	1	1	9 %	63 %
194	Uses Schema organization Other	-0.12	1	1	32 %	77 %
195	Uses JSON-LD Product Other	-0.12	1	1	8 %	44 %
196	Has Meta Robots Other	-0.12	1	1	24 %	70 %
197	Has Apple Touch Icon Technology	-0.11	1	1	47 %	73 %
198	Uses Microdata WebSite Other	-0.11	1	1	2 %	13 %
199	Has FavIcon Technology	-0.11	1	1	75 %	76 %
200	Has Google Verify Technology	-0.11	1	1	18 %	68 %

Measures 150540 SEO Factors

148818 Built-In SEO Factors

139616 On-page SEO Factors

9202 Google Maps SEO Factors for Local SEO

1722 SEO Factors from APIs

147 API SEO Factors for off-page SEO like backlinks and referring domains.

1575 Technology Stack SEO Factors

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TOP SEO Factors for 2026-05 previous